App icon: just the fringe cube, no streamlines

The owner's final choice: the hex-meshed cube with its banded fringe,
drawn a little larger, with no streamlines at any size. The Icon Composer
document is back to the floor and cube groups.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.cargo/config.toml

@@ -1,2 +1,8 @@
 [alias]
 xtask = "run --package xtask --"
+
+# Windows release binaries link the C runtime statically, so they run without the VC++
+# redistributable (packaging/windows/package.ps1 builds with --target, which keeps the flag
+# off build scripts and proc-macros).
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-C", "target-feature=+crt-static"]

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Every change to FieldCraft needs the maintainer's review before it merges.
+* @jyviko

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,46 @@
+name: Bug report
+description: Something FieldCraft does wrong, a wrong result, or a crash
+labels: [bug]
+body:
+  - type: textarea
+    id: observed
+    attributes:
+      label: Observed failure
+      description: Exactly what happened. Quote error messages and wrong numbers as they appear.
+    validations:
+      required: true
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Reproduction
+      description: Numbered steps, or a script (`fieldcraft-cli run script.json`, control-channel JSON lines), with the sample, corpus part or attached `.fieldcraft` / `.solidcraft` file that shows it.
+      placeholder: |
+        1. fieldcraft --sample cantilever
+        2. Mesh ▸ Tet ▸ OK
+        3. ...
+    validations:
+      required: true
+  - type: textarea
+    id: evidence
+    attributes:
+      label: Evidence
+      description: Screenshots, log output, numbers. For a crash, attach the crash report (`fieldcraft-cli crashes`, then `crashes show <id>`).
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behaviour
+      description: What should happen instead, and why — a closed form, a published benchmark, the documentation, or how the rest of the app behaves. Never output from a commercial CAE product.
+    validations:
+      required: true
+  - type: textarea
+    id: investigation
+    attributes:
+      label: Investigation
+      description: Anything you found about the cause — code you suspect, what you ruled out. Leave empty if you have not looked.
+  - type: input
+    id: version
+    attributes:
+      label: Version and platform
+      placeholder: "v0.5.5 (or commit), macOS 15 arm64"
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature.yml

@@ -0,0 +1,28 @@
+name: Feature request
+description: A capability FieldCraft should have
+labels: [enhancement]
+body:
+  - type: textarea
+    id: current
+    attributes:
+      label: Current behaviour
+      description: What you can and cannot do today, and what happens when you try.
+    validations:
+      required: true
+  - type: textarea
+    id: need
+    attributes:
+      label: What you need and why
+      description: The analysis or workflow you are trying to do.
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behaviour
+      description: What FieldCraft should do, as precisely as you can.
+  - type: textarea
+    id: reference
+    attributes:
+      label: References
+      description: Papers, textbooks, public specifications or published benchmarks that define the behaviour. Do not paste text, files or results from commercial CAE products.

.github/dependabot.yml

@@ -0,0 +1,59 @@
+# Weekly dependency updates against develop, the trunk, grouped so each ecosystem opens one pull
+# request a week. Security updates are switched on in the repository settings and open their own
+# pull requests as advisories appear. CI runs the full gate on Dependabot's pull requests
+# (.github/workflows/ci.yml).
+version: 2
+updates:
+  - package-ecosystem: cargo
+    directory: /
+    target-branch: develop
+    schedule:
+      interval: weekly
+      day: monday
+      time: "05:00"
+      timezone: Etc/UTC
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: deps
+    groups:
+      # Compatible updates (Cargo.lock only) in one pull request; a breaking release of a
+      # dependency comes on its own, since it usually needs code changes.
+      cargo-compatible:
+        update-types: [minor, patch]
+    ignore:
+      # Pinned to the SolidCraft commit FieldCraft builds against, together with the truck and
+      # egui-wgpu patches from that commit ([patch.crates-io] in Cargo.toml); moved by hand.
+      - dependency-name: "solidcraft-*"
+      - dependency-name: "truck-*"
+      - dependency-name: matext4cgmath
+      - dependency-name: egui-wgpu
+      # The egui line follows SolidCraft's (its egui-wgpu fixes are patched in): patch releases
+      # come with the group, a new line (0.36 -> 0.37) moves by hand with SolidCraft.
+      - dependency-name: egui
+        update-types: ["version-update:semver-major", "version-update:semver-minor"]
+      - dependency-name: eframe
+        update-types: ["version-update:semver-major", "version-update:semver-minor"]
+      # The shared Craft components follow VectorCraft's rev.
+      - dependency-name: craft-ui
+      # The exact predicates' BigInt must be num-rational's (0.4 uses num-bigint 0.4): both move
+      # together, by hand.
+      - dependency-name: num-bigint
+        update-types: ["version-update:semver-major", "version-update:semver-minor"]
+      - dependency-name: num-rational
+        update-types: ["version-update:semver-major", "version-update:semver-minor"]
+
+  - package-ecosystem: github-actions
+    directory: /
+    target-branch: develop
+    schedule:
+      interval: weekly
+      day: monday
+      time: "05:00"
+      timezone: Etc/UTC
+    open-pull-requests-limit: 3
+    commit-message:
+      prefix: ci
+    groups:
+      # Actions are pinned by commit SHA with a version comment; Dependabot updates both.
+      actions:
+        patterns: ["*"]

.github/pull_request_template.md

@@ -0,0 +1,11 @@
+Closes #
+
+## What and why
+
+## How it was verified
+<!-- Tests added or changed; oracle cases (tests/oracle) for solver and meshing results, with their cited references. -->
+
+## Checklist
+- [ ] The issue was assigned to me before I started (see CONTRIBUTING.md)
+- [ ] `cargo fmt --all`, `cargo clippy -p <crates I touched> --all-targets -- -D warnings` and their tests pass
+- [ ] No code, text or data from GPL-family projects or commercial CAE products

.github/release-notes.md

@@ -0,0 +1,27 @@
+FieldCraft is open-source CAE pre-processing in Rust: it turns geometry into analysis-ready
+finite element models, writes Abaqus, Nastran and LS-DYNA decks, and solves linear static and
+modal problems with its own solver. AI agents can drive it over MCP (`fieldcraft-cli mcp`).
+[README](https://github.com/jyviko/fieldcraft#readme) ·
+[roadmap](https://github.com/jyviko/fieldcraft/blob/main/ROADMAP.md) ·
+[issues](https://github.com/jyviko/fieldcraft/issues)
+
+**Which file?**
+- **macOS 11+** (Apple silicon and Intel): open `fieldcraft-{version}-macos-universal.dmg` and
+  drag `FieldCraft.app` onto Applications. The command-line tool is in
+  `fieldcraft-cli-{version}-macos-universal.zip`.
+- **Linux** (x86_64, glibc 2.35+: Ubuntu 22.04, Debian 12, Fedora 36 or newer):
+  `fieldcraft-{version}-linux-x86_64.AppImage` (`chmod +x`, then run it), or unpack
+  `fieldcraft-{version}-linux-x86_64.tar.gz` and run `bin/fieldcraft` (`bin/fieldcraft-cli` is the
+  command-line tool).
+- **Windows 10+** (x64): unzip `fieldcraft-{version}-windows-x64.zip` and run `fieldcraft.exe`
+  (`fieldcraft-cli.exe` is the command-line tool).
+- `SHA256SUMS.txt`: `sha256sum -c SHA256SUMS.txt --ignore-missing` (macOS:
+  `shasum -a 256 -c SHA256SUMS.txt --ignore-missing`).
+
+To start with a sample model, run the app with `--sample cantilever` (macOS:
+`/Applications/FieldCraft.app/Contents/MacOS/FieldCraft --sample cantilever`).
+
+**Signing.** {macos_signing} The Linux and Windows builds are not signed; on Windows, SmartScreen
+may say "Windows protected your PC": choose **More info**, then **Run anyway**.
+
+Every package carries `LICENSE-MIT`, `LICENSE-APACHE`, `NOTICE` and `THIRD-PARTY-LICENSES.txt`.

.github/workflows/arch-check.yml

@@ -0,0 +1,83 @@
+# Linux on other architectures, weekly and on demand: CI and the release build x86_64 Linux,
+# macOS and Windows only.
+# - arm64: a native runner builds the shipped binaries (release profile) and runs the CLI and
+#   engine tests.
+# - riscv64: cross-built with Ubuntu's GNU toolchain and linked; the CLI then runs under QEMU.
+#   The GUI needs no target system libraries at link time (Wayland, X11 and GL are opened at run
+#   time), so only the cross C toolchain and libc are installed.
+# The RISC-V job is adapted from SolidCraft's CI (see ATTRIBUTION.md).
+name: Linux arm64 and riscv64
+
+on:
+  schedule:
+    - cron: '17 5 * * 1'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: arch-check-${{ github.ref }}
+  cancel-in-progress: false
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  arm64:
+    name: Linux arm64 (native)
+    runs-on: ubuntu-24.04-arm
+    timeout-minutes: 90
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: arm64
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
+      - name: Build fieldcraft and fieldcraft-cli (release)
+        run: cargo build --locked --release -p fieldcraft -p fieldcraft-cli
+      - name: Run the binaries
+        run: |
+          file target/release/fieldcraft target/release/fieldcraft-cli
+          target/release/fieldcraft --version
+          target/release/fieldcraft-cli --version
+          target/release/fieldcraft-cli commands >/dev/null
+      - name: CLI and engine tests
+        run: cargo test --locked --profile ci -p fieldcraft-cli -p fieldcraft-engine
+
+  riscv64:
+    name: Linux riscv64 (cross)
+    runs-on: ubuntu-24.04
+    timeout-minutes: 90
+    env:
+      TARGET: riscv64gc-unknown-linux-gnu
+      CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_LINKER: riscv64-linux-gnu-gcc
+      CARGO_TARGET_RISCV64GC_UNKNOWN_LINUX_GNU_RUNNER: qemu-riscv64 -L /usr/riscv64-linux-gnu
+      CC_riscv64gc_unknown_linux_gnu: riscv64-linux-gnu-gcc
+      CXX_riscv64gc_unknown_linux_gnu: riscv64-linux-gnu-g++
+      AR_riscv64gc_unknown_linux_gnu: riscv64-linux-gnu-ar
+      PKG_CONFIG_ALLOW_CROSS: 1
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: riscv64gc-unknown-linux-gnu
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: riscv64
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
+      - name: Install the cross toolchain and QEMU
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends gcc-riscv64-linux-gnu g++-riscv64-linux-gnu \
+            libc6-dev-riscv64-cross qemu-user
+      - name: Build fieldcraft and fieldcraft-cli
+        run: cargo build --locked --profile ci --target "$TARGET" -p fieldcraft -p fieldcraft-cli
+      - name: Run the CLI under QEMU
+        run: |
+          bin="target/$TARGET/ci"
+          file "$bin/fieldcraft" "$bin/fieldcraft-cli"
+          qemu-riscv64 -L /usr/riscv64-linux-gnu "$bin/fieldcraft-cli" --version
+          qemu-riscv64 -L /usr/riscv64-linux-gnu "$bin/fieldcraft-cli" commands >/dev/null
+          qemu-riscv64 -L /usr/riscv64-linux-gnu "$bin/fieldcraft" --version

.github/workflows/ci.yml

@@ -1,64 +1,54 @@
 name: CI
 
+# CI runs once per merge on `develop`, the trunk (AGENTS.md, "Workflow for every change"): the core
+# team's pull requests are checked locally on the crates they touch and merged; a red trunk is
+# fixed forward. `main` holds released code only (docs/releasing.md).
+# Pull requests from forks (outside contributors) run the full gate, once the maintainer approves
+# the run, so the review sees it; so do Dependabot's (.github/dependabot.yml), which nobody tests
+# locally. The heavy job stays off pull requests.
 on:
   pull_request:
+    paths:
+      - '**'
+      - '!**/*.md'
+      - '!docs/**'
+      - 'docs/features.md'
+      - 'docs/oracle.md'
   push:
-    branches: [main]
+    branches: [develop]
+    # A merge that only touches prose starts no run. The generated pages are checked by the jobs
+    # (features.md by `cargo xtask ci`, oracle.md by the oracle job), so they still count.
+    # (Later patterns override earlier ones.)
+    paths:
+      - '**'
+      - '!**/*.md'
+      - '!docs/**'
+      - 'docs/features.md'
+      - 'docs/oracle.md'
   schedule:
-    # Nightly: the heavy tests on main.
+    # Nightly, on the default branch (develop): the heavy tests.
     - cron: '23 3 * * *'
+    # Weekly: the oracle on macOS too, so results that differ by platform show up in CI (the
+    # fixtures are often blessed on a Mac; #115).
+    - cron: '41 4 * * 0'
   workflow_dispatch:
 
 permissions:
   contents: read
 
+# A newer merge cancels the run still going for the one before it, so a burst of merges is tested
+# once, at the tip. Nightly and manual runs are grouped apart and never cancelled by a merge.
 concurrency:
-  group: ci-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+  group: ci-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: ${{ github.event_name == 'push' || github.event_name == 'pull_request' }}
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
-  # Pull requests that only touch Markdown or docs/ skip the build jobs (they still report, as
-  # skipped). Pushes to main and manual runs always run everything.
-  changes:
-    name: Select checks
-    runs-on: ubuntu-24.04
-    outputs:
-      code: ${{ steps.paths.outputs.code }}
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          fetch-depth: 0
-      - id: paths
-        name: Detect code changes
-        env:
-          EVENT_NAME: ${{ github.event_name }}
-          BASE_SHA: ${{ github.event.pull_request.base.sha }}
-          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
-        run: |
-          if [ "$EVENT_NAME" != "pull_request" ]; then
-            echo "code=true" >> "$GITHUB_OUTPUT"
-            exit 0
-          fi
-          changed=$(git diff --name-only "$BASE_SHA" "$HEAD_SHA")
-          code=false
-          while IFS= read -r f; do
-            case "$f" in
-              docs/features.md|docs/oracle.md) code=true ;;
-              *.md|docs/*) ;;
-              "") ;;
-              *) code=true ;;
-            esac
-          done <<< "$changed"
-          echo "code=$code" >> "$GITHUB_OUTPUT"
-          echo "code changes: $code"
-
   ci:
     name: cargo xtask ci
-    needs: changes
-    if: needs.changes.outputs.code == 'true'
+    if: github.event.schedule != '41 4 * * 0' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository || github.event.pull_request.user.login == 'dependabot[bot]')
     runs-on: ubuntu-24.04
     timeout-minutes: 60
     steps:
@@ -69,15 +59,19 @@ jobs:
           targets: wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
-          # Branches restore main's cache; saving their own would only evict it.
-          save-if: ${{ github.ref == 'refs/heads/main' }}
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
+      # A dependency update changes THIRD-PARTY-LICENSES.txt, which Dependabot cannot regenerate:
+      # regenerate it here so the gate checks everything else, and dependabot-licences.yml commits
+      # it to the pull request.
+      - name: Regenerate THIRD-PARTY-LICENSES.txt (Dependabot)
+        if: github.event.pull_request.user.login == 'dependabot[bot]'
+        run: cargo xtask licences
       - run: cargo xtask ci
 
   heavy:
-    # The heavy verification and corpus tests (#[ignore]d) and the doc tests: on main, nightly
-    # and on demand, not on every pull request.
+    # The heavy verification and corpus tests (#[ignore]d) and the doc tests.
     name: cargo xtask test --heavy
-    if: contains(fromJSON('["push", "schedule", "workflow_dispatch"]'), github.event_name)
+    if: github.event.schedule != '41 4 * * 0' && github.event_name != 'pull_request'
     runs-on: ubuntu-24.04
     timeout-minutes: 60
     steps:
@@ -85,7 +79,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
       - run: cargo xtask test --heavy
 
   oracle:
@@ -93,8 +87,7 @@ jobs:
     # its fixture, and docs/oracle.md must be the table the cases produce. Cases marked `slow`
     # run here too while the whole set stays within a few minutes; `--quick` skips them.
     name: cargo xtask oracle
-    needs: changes
-    if: needs.changes.outputs.code == 'true'
+    if: github.event.schedule != '41 4 * * 0' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository || github.event.pull_request.user.login == 'dependabot[bot]')
     runs-on: ubuntu-24.04
     timeout-minutes: 45
     steps:
@@ -103,15 +96,32 @@ jobs:
       - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: oracle
-          save-if: ${{ github.ref == 'refs/heads/main' }}
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
+      - run: cargo xtask oracle
+      - name: docs/oracle.md is current
+        run: git diff --exit-code docs/oracle.md
+
+  oracle-macos:
+    # The same oracle on macOS, weekly and on demand: the solvers must agree across platforms
+    # to the fixture bands, and docs/oracle.md must read the same.
+    name: cargo xtask oracle (macOS)
+    if: github.event.schedule == '41 4 * * 0' || github.event_name == 'workflow_dispatch'
+    runs-on: macos-14
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: oracle-macos
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
       - run: cargo xtask oracle
       - name: docs/oracle.md is current
         run: git diff --exit-code docs/oracle.md
 
   advisories:
     name: Dependency advisories and sources
-    needs: changes
-    if: needs.changes.outputs.code == 'true'
+    if: github.event.schedule != '41 4 * * 0' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository || github.event.pull_request.user.login == 'dependabot[bot]')
     runs-on: ubuntu-24.04
     timeout-minutes: 20
     steps:

.github/workflows/dependabot-licences.yml

@@ -0,0 +1,40 @@
+# Dependabot's Cargo updates change THIRD-PARTY-LICENSES.txt (`cargo xtask licences`), which
+# Dependabot cannot regenerate: this commits the regenerated file to its pull request. CI's own
+# run on the pull request regenerates it too, so its result covers everything else.
+name: Dependabot licences
+
+on:
+  pull_request:
+    branches: [develop]
+    paths: [Cargo.lock]
+
+permissions:
+  contents: write
+
+concurrency:
+  group: dependabot-licences-${{ github.head_ref }}
+  cancel-in-progress: true
+
+jobs:
+  licences:
+    if: github.event.pull_request.user.login == 'dependabot[bot]'
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ github.head_ref }}
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cargo xtask licences
+      - name: Commit the regenerated file
+        run: |
+          if git diff --quiet -- THIRD-PARTY-LICENSES.txt; then
+            echo "THIRD-PARTY-LICENSES.txt is up to date"
+            exit 0
+          fi
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          # [skip ci]: the pull request's CI run already regenerated this file and tested the
+          # tree with it; a bot-authored commit would otherwise wait for a maintainer's approval.
+          git commit -m "deps: regenerate THIRD-PARTY-LICENSES.txt [skip ci]" -- THIRD-PARTY-LICENSES.txt
+          git push origin "HEAD:${GITHUB_HEAD_REF}"

.github/workflows/packaging-lint.yml

@@ -0,0 +1,79 @@
+# Quick static checks for the release pipeline (seconds, no Rust build): workflow syntax, the
+# packaging shell and PowerShell scripts, the macOS property lists and the Linux desktop entry.
+# These files are otherwise exercised only by a full release run (release.yml).
+# Adapted from SolidCraft's packaging-lint.yml, itself adapted from PhotoCraft's (see ATTRIBUTION.md).
+name: Packaging lint
+
+on:
+  push:
+    branches: [develop]
+    paths: [".github/workflows/**", "packaging/**"]
+  pull_request:
+    paths: [".github/workflows/**", "packaging/**"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: packaging-lint-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: Packaging lint
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    env:
+      ACTIONLINT_VERSION: 1.7.12
+      ACTIONLINT_SHA256: 8aca8db96f1b94770f1b0d72b6dddcb1ebb8123cb3712530b08cc387b349a3d8
+      PSSCRIPTANALYZER_VERSION: 1.24.0
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - name: Install tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends shellcheck desktop-file-utils libxml2-utils
+          archive="$RUNNER_TEMP/actionlint.tar.gz"
+          curl -fsSL -o "$archive" \
+            "https://github.com/rhysd/actionlint/releases/download/v${ACTIONLINT_VERSION}/actionlint_${ACTIONLINT_VERSION}_linux_amd64.tar.gz"
+          echo "$ACTIONLINT_SHA256  $archive" | sha256sum -c -
+          tar -xzf "$archive" -C "$RUNNER_TEMP" actionlint
+      - name: actionlint
+        # Also runs shellcheck on every `run:` script.
+        run: '"$RUNNER_TEMP/actionlint" -color'
+      - name: shellcheck
+        # packaging/.shellcheckrc lets the scripts' `source=../env.sh` directives resolve.
+        run: shellcheck packaging/*.sh packaging/*/*.sh packaging/linux/AppRun
+      - name: PowerShell
+        shell: pwsh
+        run: |
+          $failed = $false
+          foreach ($f in Get-ChildItem packaging/windows/*.ps1) {
+            $errors = $null
+            [System.Management.Automation.Language.Parser]::ParseFile($f.FullName, [ref]$null, [ref]$errors) | Out-Null
+            if ($errors) {
+              $errors | ForEach-Object { Write-Output "::error file=$($f.FullName),line=$($_.Extent.StartLineNumber)::$($_.Message)" }
+              $failed = $true
+            } else {
+              Write-Output "parsed $($f.Name)"
+            }
+          }
+          if ($failed) { exit 1 }
+          if (-not (Get-Module -ListAvailable PSScriptAnalyzer | Where-Object Version -eq $env:PSSCRIPTANALYZER_VERSION)) {
+            Install-Module PSScriptAnalyzer -RequiredVersion $env:PSSCRIPTANALYZER_VERSION -Scope CurrentUser -Force
+          }
+          Import-Module PSScriptAnalyzer -RequiredVersion $env:PSSCRIPTANALYZER_VERSION
+          $issues = Invoke-ScriptAnalyzer -Path packaging/windows -Recurse -Severity Error, Warning
+          $issues | ForEach-Object { Write-Output "::error file=$($_.ScriptPath),line=$($_.Line)::$($_.RuleName): $($_.Message)" }
+          if ($issues) { exit 1 }
+      - name: Property lists and desktop entry
+        run: |
+          app_id="$(sed -n 's/^APP_ID=//p' packaging/env.sh)"
+          test -n "$app_id"
+          xmllint --noout packaging/macos/*.plist*
+          desktop="packaging/linux/$app_id.desktop"
+          desktop-file-validate "$desktop"
+          # The window's X11 class / Wayland app_id is packaging's APP_ID (apps/fieldcraft/src/main.rs).
+          grep -qx "StartupWMClass=$app_id" "$desktop"
+          grep -qF "const APP_ID: &str = \"$app_id\";" apps/fieldcraft/src/main.rs

.github/workflows/pages.yml

@@ -0,0 +1,84 @@
+# The web app (apps/fieldcraft-web, docs/web.md) on GitHub Pages: https://jyviko.github.io/fieldcraft/
+# After SolidCraft's pages.yml (MIT OR Apache-2.0; see ATTRIBUTION.md).
+#
+# A push to `main` (a release; main holds released code only) builds the app with Trunk (release,
+# wasm-opt) and deploys it. A merge to `develop` that touches code builds it without deploying, so a
+# broken web build shows up before the release. A manual run builds the branch it runs on and
+# deploys only from `main`. Needs Settings › Pages › Source = GitHub Actions, and `main` allowed
+# by the github-pages environment's deployment branches.
+name: Pages
+
+on:
+  push:
+    branches: [main, develop]
+    # As ci.yml: a merge that only touches prose builds nothing.
+    paths:
+      - '**'
+      - '!**/*.md'
+      - '!docs/**'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# One deployment at a time; a newer push waits its turn instead of cancelling a deploy part way.
+concurrency:
+  group: pages-${{ github.ref }}
+  cancel-in-progress: false
+
+env:
+  CARGO_TERM_COLOR: always
+  TRUNK_VERSION: v0.21.14
+  TRUNK_SHA256: f2b4680cd239693a646a2795e4633c625328d7b2a044fbe749fa3a2fe9e7036b
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: web
+          save-if: ${{ github.ref == 'refs/heads/develop' }}
+      - name: Install Trunk
+        run: |
+          mkdir -p "$HOME/.local/bin"
+          curl -sSfL -o trunk.tar.gz "https://github.com/trunk-rs/trunk/releases/download/${TRUNK_VERSION}/trunk-x86_64-unknown-linux-gnu.tar.gz"
+          echo "${TRUNK_SHA256}  trunk.tar.gz" | sha256sum -c -
+          tar -xzf trunk.tar.gz -C "$HOME/.local/bin"
+          echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+      - name: Build the web app
+        working-directory: apps/fieldcraft-web
+        run: trunk build --release --public-url /fieldcraft/
+      - name: Bundle size
+        run: |
+          {
+            echo "### Web app bundle"
+            echo '| file | bytes | gzip |'
+            echo '|---|---:|---:|'
+            for f in dist/web/*.wasm dist/web/*.js; do
+              echo "| $(basename "$f") | $(stat -c %s "$f") | $(gzip -9 -c "$f" | wc -c) |"
+            done
+          } >> "$GITHUB_STEP_SUMMARY"
+      - if: github.ref == 'refs/heads/main'
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0
+        with:
+          path: dist/web
+
+  deploy:
+    if: github.ref == 'refs/heads/main'
+    needs: build
+    runs-on: ubuntu-24.04
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@368f82528645a54fb793d4d04e342629a3f51346 # v5.0.1

.github/workflows/release.yml

@@ -0,0 +1,253 @@
+# Release builds (docs/releasing.md), after SolidCraft's and VectorCraft's release.yml
+# (MIT OR Apache-2.0; see ATTRIBUTION.md).
+#
+# A push to `main` (fast-forwarded from a verified `develop` commit; main holds released code only)
+# builds every package and creates or updates the
+# DRAFT GitHub Release "FieldCraft v<version>", with SHA256SUMS.txt and generated notes. The
+# version is [workspace.package] version in Cargo.toml; a suffix (0.2.0-rc.1) makes a
+# pre-release. A person verifies the draft and publishes it; this workflow never publishes,
+# and pushes to develop or tags never start it.
+#
+#   macOS universal (arm64 + x86_64)   .dmg with FieldCraft.app, the CLI as a .zip   packaging/macos
+#   Linux x86_64 (glibc 2.35+)         .tar.gz and .AppImage                          packaging/linux
+#   Windows x64                        .zip with fieldcraft.exe and fieldcraft-cli.exe packaging/windows
+#
+# macOS: signed with a Developer ID and notarized when the APPLE_* secrets exist, ad-hoc
+# otherwise (the release notes say which). Linux and Windows builds are not signed.
+#
+# Dry run: `gh workflow run release.yml --ref <branch>` builds everything and uploads the
+# `release-assets` artifact without creating a release. `-f draft=true` on `main` retries
+# the draft.
+name: Release
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+    inputs:
+      draft:
+        description: "Create/update the draft release (main only; off: build artifacts only)"
+        type: boolean
+        default: false
+
+permissions:
+  contents: read
+
+concurrency:
+  group: release-${{ github.ref }}
+  # Never cancel a run mid-notarization or mid-upload; a newer push waits its turn.
+  cancel-in-progress: false
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+
+jobs:
+  version:
+    runs-on: ubuntu-24.04
+    outputs:
+      version: ${{ steps.v.outputs.version }}
+      prerelease: ${{ steps.v.outputs.prerelease }}
+      draft: ${{ steps.v.outputs.draft }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - id: v
+        name: Resolve the version
+        env:
+          REQUEST_DRAFT: ${{ github.event_name == 'push' || inputs.draft }}
+        run: |
+          . packaging/env.sh
+          if ! printf '%s' "$VERSION" | grep -Eq '^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(-[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$'; then
+            echo "::error::Cargo.toml must contain a version like 1.2.3 or 1.2.3-rc.1, not '$VERSION'"
+            exit 1
+          fi
+          if [ "$REQUEST_DRAFT" = true ] && [ "$GITHUB_REF" != refs/heads/main ]; then
+            echo "::error::Draft releases are built from main only"
+            exit 1
+          fi
+          case "$VERSION" in *-*) pre=true ;; *) pre=false ;; esac
+          { echo "version=$VERSION"; echo "prerelease=$pre"; echo "draft=$REQUEST_DRAFT"; } >>"$GITHUB_OUTPUT"
+          echo "### FieldCraft v$VERSION (\`${GITHUB_SHA::9}\`)" >>"$GITHUB_STEP_SUMMARY"
+
+  macos:
+    name: macOS universal
+    needs: version
+    runs-on: macos-14
+    timeout-minutes: 120
+    outputs:
+      signing: ${{ steps.package.outputs.signing }}
+    env:
+      FIELDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: aarch64-apple-darwin, x86_64-apple-darwin
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: release-macos-universal
+          # Release runs are rare: only release-branch runs keep a cache, so dry runs don't evict CI's.
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+      - name: Import the signing certificate (skipped without APPLE_CERTIFICATE)
+        env:
+          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
+          APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
+          KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
+        run: packaging/macos/import-cert.sh
+      - name: Build, sign, notarize and package (the dmg is mounted and checked)
+        id: package
+        env:
+          APPLE_ID: ${{ secrets.APPLE_ID }}
+          APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+        run: packaging/macos/package.sh --arch universal
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: release-macos
+          path: dist/release/*
+          if-no-files-found: error
+      - name: Remove the temporary keychain
+        if: always()
+        run: |
+          if [ -n "${MACOS_KEYCHAIN:-}" ]; then security delete-keychain "$MACOS_KEYCHAIN" || true; fi
+
+  linux:
+    name: Linux x86_64
+    needs: version
+    # The oldest GitHub-hosted image, so the binaries need only glibc >= 2.35.
+    runs-on: ubuntu-22.04
+    timeout-minutes: 90
+    env:
+      FIELDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - name: Install packaging tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends desktop-file-utils
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: release-linux-x86_64
+          # Release runs are rare: only release-branch runs keep a cache, so dry runs don't evict CI's.
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+      - name: Build and package (tar.gz, AppImage)
+        run: packaging/linux/package.sh
+      - name: Check the packages
+        run: |
+          . packaging/env.sh
+          list="$(tar -tzf dist/release/*.tar.gz)"
+          for f in bin/fieldcraft bin/fieldcraft-cli "share/applications/$APP_ID.desktop" \
+            share/doc/fieldcraft/THIRD-PARTY-LICENSES.txt; do
+            grep -Fx -- "fieldcraft-$VERSION-linux-x86_64/$f" <<<"$list"
+          done
+          ldd target/release/fieldcraft
+          for appimage in dist/release/*.AppImage; do
+            chmod +x "$appimage"
+            APPIMAGE_EXTRACT_AND_RUN=1 "$appimage" --version
+          done
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: release-linux-x86_64
+          path: dist/release/*
+          if-no-files-found: error
+
+  windows:
+    name: Windows x64
+    needs: version
+    runs-on: windows-latest
+    timeout-minutes: 90
+    env:
+      FIELDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: x86_64-pc-windows-msvc
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: release-windows-x64
+          # Release runs are rare: only release-branch runs keep a cache, so dry runs don't evict CI's.
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+      - name: Build and package (zip)
+        shell: pwsh
+        run: ./packaging/windows/package.ps1
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: release-windows-x64
+          path: dist/release/*
+          if-no-files-found: error
+
+  release:
+    name: Draft release (or dry-run artifacts)
+    needs: [version, macos, linux, windows]
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: write
+    env:
+      VERSION: ${{ needs.version.outputs.version }}
+      PRERELEASE: ${{ needs.version.outputs.prerelease }}
+      MACOS_SIGNING: ${{ needs.macos.outputs.signing }}
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GH_REPO: ${{ github.repository }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
+        with:
+          pattern: release-*
+          path: artifacts
+          merge-multiple: true
+      - name: Check the set, checksums and notes
+        run: |
+          for f in "fieldcraft-$VERSION-macos-universal.dmg" "fieldcraft-cli-$VERSION-macos-universal.zip" \
+            "fieldcraft-$VERSION-linux-x86_64.tar.gz" "fieldcraft-$VERSION-linux-x86_64.AppImage" \
+            "fieldcraft-$VERSION-windows-x64.zip"; do
+            test -s "artifacts/$f" || { echo "::error::missing $f"; exit 1; }
+          done
+          (cd artifacts && sha256sum -- * | tee SHA256SUMS.txt)
+          # The macOS paragraph says how the app was signed (packaging/macos/package.sh).
+          case "$MACOS_SIGNING" in
+            notarized) macos="The macOS app is signed with a Developer ID and notarized by Apple." ;;
+            signed) macos="The macOS app is signed with a Developer ID but **not notarized**: the first time, right-click \`FieldCraft.app\` in Applications and choose **Open**." ;;
+            *) macos="The macOS app is **ad-hoc signed and not notarized**: macOS blocks the first launch. Right-click \`FieldCraft.app\` in Applications and choose **Open** (then **Open** again), or run \`xattr -dr com.apple.quarantine /Applications/FieldCraft.app\`." ;;
+          esac
+          awk -v v="$VERSION" -v m="$macos" '{ gsub(/\{version\}/, v); gsub(/\{macos_signing\}/, m); print }' \
+            .github/release-notes.md >notes.md
+          cat notes.md >>"$GITHUB_STEP_SUMMARY"
+      - name: Upload the dry-run artifacts
+        if: needs.version.outputs.draft != 'true'
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: release-assets
+          path: |
+            artifacts/*
+            notes.md
+          if-no-files-found: error
+      - name: Create or update the draft release
+        if: needs.version.outputs.draft == 'true'
+        working-directory: artifacts
+        run: |
+          tag="v$VERSION"
+          title="FieldCraft v$VERSION"
+          if gh api "repos/$GH_REPO/git/matching-refs/tags/$tag" --jq '.[].ref' | grep -Fxq "refs/tags/$tag"; then
+            echo "::error::Tag $tag already exists. Choose a new version; never move a release tag."
+            exit 1
+          fi
+          if draft="$(gh release view "$tag" --json isDraft --jq .isDraft 2>/dev/null)"; then
+            if [ "$draft" != true ]; then
+              echo "::error::Release $tag is already published. Bump the version before releasing."
+              exit 1
+            fi
+            # A rebuild of the same version replaces the draft's assets (removing names it no longer
+            # makes); its notes are kept.
+            assets="$(gh release view "$tag" --json assets --jq '.assets[].name')"
+            while IFS= read -r asset; do
+              if [ -n "$asset" ]; then gh release delete-asset "$tag" "$asset" --yes; fi
+            done <<<"$assets"
+            gh release edit "$tag" --draft --title "$title" --target "$GITHUB_SHA" --prerelease="$PRERELEASE"
+            gh release upload "$tag" -- *
+          else
+            gh release create "$tag" --draft --title "$title" --target "$GITHUB_SHA" \
+              --notes-file ../notes.md --generate-notes --prerelease="$PRERELEASE" -- *
+          fi
+          echo "Draft release **$title** at \`${GITHUB_SHA::9}\`: $(gh release view "$tag" --json url --jq .url)" >>"$GITHUB_STEP_SUMMARY"

.gitignore

@@ -6,3 +6,4 @@
 *~
 .DS_Store
 *.swp
+__pycache__/

AGENTS.md

@@ -1,6 +1,6 @@
-# ModelCraft — instructions for agents
+# FieldCraft — instructions for agents
 
-ModelCraft is a clean-room, open-source, pure-Rust CAE modeling application: it turns geometry
+FieldCraft is a clean-room, open-source, pure-Rust CAE modeling application: it turns geometry
 into analysis-ready finite element models (volume meshes, materials, sections, boundary
 conditions, loads and steps), writes them as Abaqus input, Nastran bulk data and LS-DYNA keyword
 decks, and solves linear static and modal problems with its own solver. It targets the
@@ -12,8 +12,8 @@ storytold Craft apps (`storytold/cadcraft`, `vectorcraft`, `photocraft`, …). C
 them (MIT OR Apache-2.0) is noted in ATTRIBUTION.md.
 
 ## Product name
-ModelCraft everywhere: crates `modelcraft-*`, binaries `modelcraft` and `modelcraft-cli`,
-`.modelcraft` models, `MODELCRAFT_*` environment variables, docs, CI and packaging.
+FieldCraft everywhere: crates `fieldcraft-*`, binaries `fieldcraft` and `fieldcraft-cli`,
+`.fieldcraft` models, `FIELDCRAFT_*` environment variables, docs, CI and packaging.
 
 ## Start every session here
 1. Read `ROADMAP.md` (milestones, what is next) and your task.
@@ -22,7 +22,7 @@ ModelCraft everywhere: crates `modelcraft-*`, binaries `modelcraft` and `modelcr
 4. Meshing work: `docs/meshing/literature.md` (the papers each algorithm comes from).
 
 ## Never crash
-People trust ModelCraft with their models; a crash loses their work. **This outranks feature work.**
+People trust FieldCraft with their models; a crash loses their work. **This outranks feature work.**
 - **No panics in non-test code:** no `unwrap()`, `expect()`, `panic!`, `unreachable!`, `todo!`,
   `unimplemented!`; no `unsafe` (`unsafe_code = "forbid"`).
 - **Errors are `Result<T, E>`** through the crate's error type and `?`. An unfinished feature
@@ -32,7 +32,7 @@ People trust ModelCraft with their models; a crash loses their work. **This outr
 - **Bound every iterative algorithm.** Mesh refinement, smoothing, untangling and solver
   iterations have explicit iteration and element-count caps and report when they stop early.
 - **SolidCraft calls are guarded:** everything that calls `solidcraft-kernel` goes through
-  `solidcraft_kernel::guard` inside `modelcraft-geometry`, which turns a panic into an error.
+  `solidcraft_kernel::guard` inside `fieldcraft-geometry`, which turns a panic into an error.
 - **Last-resort guard:** `Session::execute` runs every command under `catch_unwind`; an error or
   an escaped panic restores the model and reports `EngineError`.
 - **Prove it:** every crash fix lands with a regression test (see `hostile_params_never_panic`).
@@ -64,7 +64,7 @@ People trust ModelCraft with their models; a crash loses their work. **This outr
   Code_Aster, OpenRadioss, Elmer, deal.II, FreeFEM, Salome, OpenFOAM — don't even read their
   sources. Permissively licensed code (MIT, BSD, Apache-2.0, MPL-2.0) may be read for reference;
   anything adapted is noted in ATTRIBUTION.md with its licence.
-- **Assets — absolutely essential.** ModelCraft contains **no iconography, images, fonts or
+- **Assets — absolutely essential.** FieldCraft contains **no iconography, images, fonts or
   artwork from commercial CAE products — ever.** Icons are original artwork made with VectorCraft:
   commit the editable `.vectorcraft` source beside the exported SVG/PNG. Any file asset must be
   original or openly licensed and **must have a row in ATTRIBUTION.md** (`cargo xtask assets`
@@ -84,7 +84,8 @@ People trust ModelCraft with their models; a crash loses their work. **This outr
   L7 depends on egui/eframe/winit/wgpu/rfd. **Only
   `crates/geometry` may use `solidcraft-*`.**
 - **Determinism.** The same input gives the same mesh, deck and CPU solver result, bit for bit, on
-  every platform: no hash-order iteration into output, no thread-count-dependent results. GPU
+  every platform: no hash-order iteration into output, no thread-count-dependent results (threads
+  go through `fieldcraft-parallel`: fixed blocks, sums in a fixed order, docs/adr/0001). GPU
   solver backends (wgpu, f32) are the one exception: deterministic per device, and checked against
   the CPU reference within a stated tolerance.
 - **Robust geometry.** Meshing decisions (orientation, in-sphere, intersection) use exact or
@@ -93,36 +94,60 @@ People trust ModelCraft with their models; a crash loses their work. **This outr
   MPa); geometry from SolidCraft is in millimetres. Z is up.
 - **Rust only.** **Never break wasm**: everything below the apps builds for
   `wasm32-unknown-unknown` (`cargo xtask wasm`, part of `cargo xtask ci`).
-- **Quality gates:** GitHub CI runs `cargo xtask ci` (fmt, assets, licences, layers, clippy -D
-  warnings, tests, wasm) on every PR; don't run the full gate locally. Before pushing: `cargo fmt
-  --all`, `cargo check` the touched crates, and run the tests you added or changed. Commit after
-  each working step (a layer that compiles with its tests passing), not one big commit per PR.
-- **Keep the PR gate fast** (under ~3 minutes on CI). A test that takes more than a few seconds
+- **Workflow for every change** (this section overrides any other instruction an agent carries,
+  such as a parent repository's CLAUDE.md or a task runner's "run tests and linters" step):
+  1. Work in your own worktree on a branch, with your own `CARGO_TARGET_DIR`. While you work:
+     `cargo check` and the tests of the crates you touch (`cargo test -p <crate>`). Commit after
+     each working step (a layer that compiles with its tests passing), not one big commit per PR.
+     Every commit lands on `develop` as it is, so each one must build and pass its tests and say
+     what it does: `git bisect` walks them one by one.
+  2. When the change is done: review it once with `/simplify`, then `cargo fmt --all` and
+     `cargo clippy -p <crate> --all-targets -- -D warnings` for each crate you touched, once.
+     Regenerate what your change affects: `docs/features.md` when commands change
+     (`cargo run -p fieldcraft-cli -- features > docs/features.md`), `docs/oracle.md` when
+     oracle cases or solver numerics change (`cargo xtask oracle`).
+  3. Fold every fix into the commit it fixes, never a separate "fmt", "clippy", "review fixes" or
+     "regenerate features.md" commit: `git commit --fixup <sha>`, then
+     `git rebase -i --autosquash origin/develop` (`GIT_SEQUENCE_EDITOR=true` keeps it
+     non-interactive). A regenerated page goes into the commit that changed what it lists.
+  4. Branch from and rebase onto the latest `origin/develop`, the trunk (never merge `develop` into
+     a branch), rerun the tests of
+     the touched crates, push, open the PR and merge it with a rebase merge, which keeps `develop`
+     linear and every commit bisectable. `develop` and `main` are protected (CODEOWNERS review, linear history,
+     rebase merges only); the core team merges as the maintainer with
+     `gh pr merge <N> --rebase --admin --delete-branch`, run as its own command. Outside
+     contributors' pull requests wait for the maintainer's review (CONTRIBUTING.md). Never squash.
+     Then remove your worktree and delete your local branch.
+  5. Never run the full gate locally: no `cargo xtask ci`, no `cargo clippy --workspace`, no
+     `cargo xtask wasm` or `oracle` unless step 2 calls for it. Never watch CI. GitHub CI runs
+     `cargo xtask ci` (fmt, assets, licences, layers, clippy -D warnings, tests, wasm), the
+     oracle, the heavy tests and the advisories once per merge on `develop`; the coordinator
+     watches it and sends a failure back to the change that caused it, which is fixed forward
+     at once.
+- **Keep the trunk gate fast** (under ~3 minutes on CI). A test that takes more than a few seconds
   (convergence studies, the whole corpus, cross-checks between solvers) is
   `#[ignore = "heavy: cargo xtask test --heavy (CI heavy job)"]`, with a fast representative
-  test left in the PR gate. The `heavy` CI job runs `cargo xtask test --heavy` (every ignored
-  test, benchmarks included, and the doc tests) on pushes to `main`, nightly and on demand
-  (`gh workflow run CI --ref <branch>`). Hostile-input tests run commands on sessions with small
+  test left in the trunk gate. The `heavy` CI job runs `cargo xtask test --heavy` (every ignored
+  test, benchmarks included, and the doc tests) on every merge to `develop`, nightly and on
+  demand (`gh workflow run CI --ref <branch>`). Hostile-input tests run commands on sessions with small
   work caps (`Session::limits`) so refusals are instant; never lower the production caps for a
   test.
-- **Publishing**: `origin` is github.com/jyviko/modelcraft. Changes land through pull requests:
-  branch, **rebase onto the latest `origin/main` right before opening the PR and before every push
-  that updates it** (never merge `main` into a branch), push, open a PR, let CI run. A PR merges
-  (`gh pr merge --squash`) only after review and only when its green CI ran on top of current
-  `main` (`mergeStateStatus` CLEAN; rebase again if `main` moved); after a merge, `main`'s own CI
-  must pass. Never force-push `main`. Never commit `plan/`, `.agent-files/`, `worktrees/` or
-  `target*/`; check `git ls-files` before pushing.
+- **Publishing**: `origin` is github.com/jyviko/fieldcraft. Changes land through pull requests
+  as the workflow above describes; the coordinator reads every merged diff and sends findings
+  back as fix-forward work. Never force-push `develop` or `main`; `main` holds released code and moves only by
+  fast-forward at a release (docs/releasing.md). Never commit `plan/`, `.agent-files/`,
+  `worktrees/` or `target*/`; check `git ls-files` before pushing.
 
 ## Running
-- `cargo run -p modelcraft-cli -- commands` lists every command with its parameters.
-- `cargo run -p modelcraft-cli -- run script.json` runs a script (a JSON array of
+- `cargo run -p fieldcraft-cli -- commands` lists every command with its parameters.
+- `cargo run -p fieldcraft-cli -- run script.json` runs a script (a JSON array of
   `{"command", "params"}`) and prints the model summary.
-- `cargo run --release -p modelcraft -- --sample [cantilever|impact] --control PORT` opens the desktop app with a
+- `cargo run --release -p fieldcraft -- --sample [cantilever|impact] --control PORT` opens the desktop app with a
   sample model and a control channel on `127.0.0.1:PORT` (docs/control-protocol.md). For UI work,
   look at the result: `ui.capture {path}` (the whole window drawn offscreen; works with the
   screen locked), `ui.screenshot {path}` (a presented frame) or `ui.render {path}` (the model
   only), then read the PNG.
-- `cargo run -p modelcraft-cli -- mcp [--connect 127.0.0.1:PORT]` serves MCP on stdio (docs/mcp.md):
+- `cargo run -p fieldcraft-cli -- mcp [--connect 127.0.0.1:PORT]` serves MCP on stdio (docs/mcp.md):
   the same commands as tools, headless or bridged to the running app.
 - Build with `CARGO_TARGET_DIR=<repo>/target`. Parallel agents: separate target dirs, one
   worktree each.

ATTRIBUTION.md

@@ -4,9 +4,9 @@ Every non-code asset in this repository (images, icons, fonts, example geometry)
 with its author, source and licence. `cargo xtask assets` (part of `cargo xtask ci`) fails if an
 asset file is missing from this table.
 
-**Policy (mandatory):** ModelCraft contains **no iconography, images, artwork, fonts, templates,
+**Policy (mandatory):** FieldCraft contains **no iconography, images, artwork, fonts, templates,
 example decks or help text from commercial CAE products.** Every asset is original work by
-ModelCraft contributors or third-party material under an open licence. Screenshots of commercial
+FieldCraft contributors or third-party material under an open licence. Screenshots of commercial
 software are never committed. Icons are made with VectorCraft; each icon's `.vectorcraft` source
 is committed and listed here with its exports.
 
@@ -14,143 +14,146 @@ is committed and listed here with its exports.
 
 | File | Author | Source | Licence |
 |---|---|---|---|
-| crates/decks/tests/golden/nastran/*.bdf | ModelCraft contributors | Written by our Nastran writer from our own test models (crates/decks/tests/nastran.rs) | MIT OR Apache-2.0 |
-| assets/icons/assembly.instance.svg, assets/icons/assembly.instance.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/assembly.instance.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/deck.read.svg, assets/icons/deck.read.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.read.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/deck.write.abaqus.svg, assets/icons/deck.write.abaqus.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.abaqus.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/deck.write.lsdyna.svg, assets/icons/deck.write.lsdyna.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.lsdyna.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/deck.write.nastran.svg, assets/icons/deck.write.nastran.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.nastran.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/edit.redo.svg, assets/icons/edit.redo.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/edit.redo.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/edit.undo.svg, assets/icons/edit.undo.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/edit.undo.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/file.open.svg, assets/icons/file.open.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.open.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/file.recover.svg, assets/icons/file.recover.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.recover.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/file.save_as.svg, assets/icons/file.save_as.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.save_as.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/file.save.svg, assets/icons/file.save.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.save.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.bodies.svg, assets/icons/geometry.bodies.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.bodies.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.datum.svg, assets/icons/geometry.datum.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.datum.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.import.mesh.svg, assets/icons/geometry.import.mesh.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.import.mesh.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.midsurface.svg, assets/icons/geometry.midsurface.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.midsurface.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.open.svg, assets/icons/geometry.open.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.open.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.partition.svg, assets/icons/geometry.partition.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.partition.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/geometry.tessellate.svg, assets/icons/geometry.tessellate.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.tessellate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.bolt.svg, assets/icons/interaction.bolt.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.bolt.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.connector.svg, assets/icons/interaction.connector.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.connector.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.contact.find.svg, assets/icons/interaction.contact.find.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.find.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.contact.general.svg, assets/icons/interaction.contact.general.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.general.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.contact.pair.svg, assets/icons/interaction.contact.pair.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.pair.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.fsi.svg, assets/icons/interaction.fsi.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.fsi.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.mass.create.svg, assets/icons/model.mass.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.mass.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.rigid_wall.svg, assets/icons/interaction.rigid_wall.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.rigid_wall.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.spring.create.svg, assets/icons/model.spring.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.spring.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/interaction.tie.svg, assets/icons/interaction.tie.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.tie.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.delaunay.points.svg, assets/icons/mesh.delaunay.points.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.delaunay.points.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.element.add.svg, assets/icons/mesh.element.add.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.element.add.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.decompose.svg, assets/icons/mesh.hex.decompose.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.decompose.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.dominant.svg, assets/icons/mesh.hex.dominant.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.dominant.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.generate.svg, assets/icons/mesh.hex.generate.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.generate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.mapped.svg, assets/icons/mesh.hex.mapped.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.mapped.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.polycube.svg, assets/icons/mesh.hex.polycube.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.polycube.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.hex.sweep.svg, assets/icons/mesh.hex.sweep.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.sweep.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.import.orphan.svg, assets/icons/mesh.import.orphan.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.import.orphan.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.layers.svg, assets/icons/mesh.layers.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.layers.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.node.add.svg, assets/icons/mesh.node.add.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.node.add.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.node.merge.svg, assets/icons/mesh.node.merge.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.node.merge.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.order.quadratic.svg, assets/icons/mesh.order.quadratic.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.order.quadratic.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.quad.faces.svg, assets/icons/mesh.quad.faces.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.quad.faces.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.quality.svg, assets/icons/mesh.quality.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.quality.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.region.remesh.svg, assets/icons/mesh.region.remesh.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.region.remesh.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.size.adapt.svg, assets/icons/mesh.size.adapt.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.adapt.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.size.global.svg, assets/icons/mesh.size.global.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.global.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.size.seed.svg, assets/icons/mesh.size.seed.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.seed.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.smooth.svg, assets/icons/mesh.smooth.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.smooth.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.surface.check.svg, assets/icons/mesh.surface.check.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.surface.check.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.tag.svg, assets/icons/mesh.tag.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.tag.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.tet.generate.svg, assets/icons/mesh.tet.generate.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.tet.generate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.planar.svg, assets/icons/mesh.planar.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.planar.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.transition.svg, assets/icons/mesh.transition.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.transition.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.untangle.svg, assets/icons/mesh.untangle.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.untangle.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/mesh.verify.svg, assets/icons/mesh.verify.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.verify.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.activity.svg, assets/icons/model.activity.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.activity.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.amplitude.svg, assets/icons/model.amplitude.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.amplitude.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.boundary_condition.create.svg, assets/icons/model.boundary_condition.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.boundary_condition.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.check.svg, assets/icons/model.check.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.check.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.coupling.create.svg, assets/icons/model.coupling.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.coupling.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.fluid_domain.boundary.svg, assets/icons/model.fluid_domain.boundary.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.fluid_domain.boundary.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.fluid_domain.create.svg, assets/icons/model.fluid_domain.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.fluid_domain.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.info.svg, assets/icons/model.info.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.info.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.load.create.svg, assets/icons/model.load.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.load.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.create.svg, assets/icons/model.material.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.damage.svg, assets/icons/model.material.damage.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.damage.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.eos.svg, assets/icons/model.material.eos.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.eos.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.hyperelastic.svg, assets/icons/model.material.hyperelastic.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.hyperelastic.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.plasticity.svg, assets/icons/model.material.plasticity.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.plasticity.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.material.thermal.svg, assets/icons/model.material.thermal.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.thermal.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.orientation.svg, assets/icons/model.orientation.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.orientation.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.reference_point.create.svg, assets/icons/model.reference_point.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.reference_point.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.section.composite.svg, assets/icons/model.section.composite.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.section.composite.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.section.create.svg, assets/icons/model.section.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.section.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.set.create.svg, assets/icons/model.set.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.set.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.step.activate.svg, assets/icons/model.step.activate.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.activate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.step.create.svg, assets/icons/model.step.create.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.step.explicit.svg, assets/icons/model.step.explicit.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.explicit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.step.heat.svg, assets/icons/model.step.heat.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.heat.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.step.nonlinear.svg, assets/icons/model.step.nonlinear.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.nonlinear.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/model.units.svg, assets/icons/model.units.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.units.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.animate.svg, assets/icons/results.animate.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.animate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.contour.svg, assets/icons/results.contour.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.contour.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.convergence.svg, assets/icons/results.convergence.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.convergence.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.cut.svg, assets/icons/results.cut.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.cut.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.deformed.svg, assets/icons/results.deformed.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.deformed.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.display_group.svg, assets/icons/results.display_group.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.display_group.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.free_body.svg, assets/icons/results.free_body.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.free_body.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.modes.svg, assets/icons/results.modes.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.modes.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.path.svg, assets/icons/results.path.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.path.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.probe.svg, assets/icons/solve.probe.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.probe.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.reactions.svg, assets/icons/results.reactions.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.reactions.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.read.svg, assets/icons/results.read.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.read.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.streamlines.svg, assets/icons/results.streamlines.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.streamlines.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/results.xy.svg, assets/icons/results.xy.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.xy.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.blast.svg, assets/icons/solve.blast.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.blast.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.explicit.svg, assets/icons/solve.explicit.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.explicit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.fluid.svg, assets/icons/solve.fluid.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.fluid.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.frequency.svg, assets/icons/solve.frequency.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.frequency.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.fsi.svg, assets/icons/solve.fsi.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.fsi.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.static.svg, assets/icons/solve.static.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.static.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/solve.run.svg, assets/icons/solve.run.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.run.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/file.sample.svg, assets/icons/file.sample.vectorcraft | ModelCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.sample.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.eye.svg, assets/icons/ui.eye.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.eye.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.fit.svg, assets/icons/ui.fit.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.fit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.help.svg, assets/icons/ui.help.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.help.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.home.svg, assets/icons/ui.home.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.home.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.moon.svg, assets/icons/ui.moon.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.moon.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.orbit.svg, assets/icons/ui.orbit.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.orbit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.pan.svg, assets/icons/ui.pan.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.pan.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.perspective.svg, assets/icons/ui.perspective.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.perspective.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.search.svg, assets/icons/ui.search.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.search.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.style.svg, assets/icons/ui.style.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.style.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.sun.svg, assets/icons/ui.sun.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.sun.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.views.svg, assets/icons/ui.views.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.views.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/icons/ui.zoom.svg, assets/icons/ui.zoom.vectorcraft | ModelCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.zoom.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
-| assets/app-icon/icon.vectorcraft, assets/app-icon/icon.svg, assets/app-icon/icon.png | ModelCraft contributors | Original application icon (an L bracket with a bolt hole under a structured hexahedral mesh, on a rounded-square backdrop), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs); editable source, SVG and 1024 × 1024 PNG export | MIT OR Apache-2.0 |
-| assets/app-icon/icon-small.vectorcraft, assets/app-icon/icon-small.svg, assets/app-icon/icon-small.png | ModelCraft contributors | Original simplified application icon for 16–32 px (no mesh or floor grid), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/layers/01-floor.vectorcraft, assets/app-icon/ModelCraft.icon/Assets/01-floor.svg | ModelCraft contributors | Original isometric floor grid with a radial fade (Default appearance), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/layers/01-floor-dark.vectorcraft, assets/app-icon/ModelCraft.icon/Assets/01-floor-dark.svg | ModelCraft contributors | Original isometric floor grid with a radial fade (Dark appearance), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/layers/02-part.vectorcraft, assets/app-icon/ModelCraft.icon/Assets/02-part.svg | ModelCraft contributors | Original bracket faces with transparent gaps at the shared edges, drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/layers/03-mesh.vectorcraft, assets/app-icon/ModelCraft.icon/Assets/03-mesh.svg | ModelCraft contributors | Original hexahedral mesh lines (O-grid around the hole) clipped to the bracket's faces, drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/ModelCraft.icon/icon.json | ModelCraft contributors | Icon Composer composition of the layers above (Default and Dark floor grid), written by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
-| assets/app-icon/Assets.car | ModelCraft contributors | Apple actool compilation of assets/app-icon/ModelCraft.icon; contains original artwork only | MIT OR Apache-2.0 |
-| assets/app-icon/icon.icns | ModelCraft contributors | iconutil compilation of assets/app-icon/icon.iconset | MIT OR Apache-2.0 |
-| assets/app-icon/icon.ico | ModelCraft contributors | ImageMagick compilation (16–256 px) of sips exports of assets/app-icon/icon-small.png (≤ 32 px) and assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_16x16.png | ModelCraft contributors | sips export (16 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_16x16@2x.png | ModelCraft contributors | sips export (32 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_32x32.png | ModelCraft contributors | sips export (32 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_32x32@2x.png | ModelCraft contributors | sips export (64 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_128x128.png | ModelCraft contributors | sips export (128 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_128x128@2x.png | ModelCraft contributors | sips export (256 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_256x256.png | ModelCraft contributors | sips export (256 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_256x256@2x.png | ModelCraft contributors | sips export (512 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_512x512.png | ModelCraft contributors | sips export (512 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
-| assets/app-icon/icon.iconset/icon_512x512@2x.png | ModelCraft contributors | sips export (1024 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| docs/media/ibeam-analysis.mp4, docs/media/ibeam-analysis.gif | FieldCraft contributors | Original: the FieldCraft window captured during an MCP session, generated by `tools/demo-video/make.py` | MIT OR Apache-2.0 |
+| docs/media/bracket-partition.png, docs/media/bracket-hex.png, docs/media/bracket-stress.png, docs/media/setup-symbols.png | FieldCraft contributors | Original: FieldCraft renders (headless MCP screenshots and a window capture) of corpus parts and the cantilever sample | MIT OR Apache-2.0 |
+| crates/decks/tests/golden/nastran/*.bdf | FieldCraft contributors | Written by our Nastran writer from our own test models (crates/decks/tests/nastran.rs) | MIT OR Apache-2.0 |
+| assets/icons/assembly.instance.svg, assets/icons/assembly.instance.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/assembly.instance.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/deck.read.svg, assets/icons/deck.read.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.read.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/deck.write.abaqus.svg, assets/icons/deck.write.abaqus.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.abaqus.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/deck.write.lsdyna.svg, assets/icons/deck.write.lsdyna.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.lsdyna.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/deck.write.nastran.svg, assets/icons/deck.write.nastran.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/deck.write.nastran.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/edit.redo.svg, assets/icons/edit.redo.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/edit.redo.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/edit.undo.svg, assets/icons/edit.undo.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/edit.undo.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/file.open.svg, assets/icons/file.open.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.open.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/file.recover.svg, assets/icons/file.recover.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.recover.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/file.save_as.svg, assets/icons/file.save_as.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.save_as.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/file.save.svg, assets/icons/file.save.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.save.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.bodies.svg, assets/icons/geometry.bodies.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.bodies.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.datum.svg, assets/icons/geometry.datum.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.datum.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.import.mesh.svg, assets/icons/geometry.import.mesh.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.import.mesh.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.midsurface.svg, assets/icons/geometry.midsurface.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.midsurface.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.open.svg, assets/icons/geometry.open.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.open.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.partition.svg, assets/icons/geometry.partition.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.partition.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.tessellate.svg, assets/icons/geometry.tessellate.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.tessellate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.bolt.svg, assets/icons/interaction.bolt.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.bolt.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.connector.svg, assets/icons/interaction.connector.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.connector.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.contact.find.svg, assets/icons/interaction.contact.find.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.find.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.contact.general.svg, assets/icons/interaction.contact.general.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.general.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.contact.pair.svg, assets/icons/interaction.contact.pair.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.contact.pair.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.fsi.svg, assets/icons/interaction.fsi.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.fsi.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.mass.create.svg, assets/icons/model.mass.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.mass.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.rigid_wall.svg, assets/icons/interaction.rigid_wall.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.rigid_wall.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.spring.create.svg, assets/icons/model.spring.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.spring.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/interaction.tie.svg, assets/icons/interaction.tie.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/interaction.tie.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.delaunay.points.svg, assets/icons/mesh.delaunay.points.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.delaunay.points.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.element.add.svg, assets/icons/mesh.element.add.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.element.add.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.decompose.svg, assets/icons/mesh.hex.decompose.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.decompose.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.dominant.svg, assets/icons/mesh.hex.dominant.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.dominant.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.blocks.svg, assets/icons/mesh.hex.blocks.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.blocks.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.mapped.svg, assets/icons/mesh.hex.mapped.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.mapped.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.octree.svg, assets/icons/mesh.hex.octree.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.octree.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.polycube.svg, assets/icons/mesh.hex.polycube.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.polycube.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.hex.sweep.svg, assets/icons/mesh.hex.sweep.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.hex.sweep.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.import.orphan.svg, assets/icons/mesh.import.orphan.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.import.orphan.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.layers.svg, assets/icons/mesh.layers.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.layers.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.node.add.svg, assets/icons/mesh.node.add.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.node.add.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.node.merge.svg, assets/icons/mesh.node.merge.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.node.merge.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.order.quadratic.svg, assets/icons/mesh.order.quadratic.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.order.quadratic.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.quad.faces.svg, assets/icons/mesh.quad.faces.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.quad.faces.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.quality.svg, assets/icons/mesh.quality.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.quality.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.region.remesh.svg, assets/icons/mesh.region.remesh.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.region.remesh.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.size.adapt.svg, assets/icons/mesh.size.adapt.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.adapt.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.size.global.svg, assets/icons/mesh.size.global.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.global.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.size.seed.svg, assets/icons/mesh.size.seed.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.size.seed.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.smooth.svg, assets/icons/mesh.smooth.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.smooth.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.surface.check.svg, assets/icons/mesh.surface.check.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.surface.check.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.tag.svg, assets/icons/mesh.tag.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.tag.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.tet.generate.svg, assets/icons/mesh.tet.generate.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.tet.generate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.planar.svg, assets/icons/mesh.planar.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.planar.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.transition.svg, assets/icons/mesh.transition.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.transition.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.untangle.svg, assets/icons/mesh.untangle.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.untangle.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/mesh.verify.svg, assets/icons/mesh.verify.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/mesh.verify.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.activity.svg, assets/icons/model.activity.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.activity.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.amplitude.svg, assets/icons/model.amplitude.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.amplitude.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.boundary_condition.create.svg, assets/icons/model.boundary_condition.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.boundary_condition.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.check.svg, assets/icons/model.check.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.check.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.coupling.create.svg, assets/icons/model.coupling.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.coupling.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.fluid_domain.boundary.svg, assets/icons/model.fluid_domain.boundary.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.fluid_domain.boundary.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.fluid_domain.create.svg, assets/icons/model.fluid_domain.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.fluid_domain.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.info.svg, assets/icons/model.info.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.info.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.load.create.svg, assets/icons/model.load.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.load.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.create.svg, assets/icons/model.material.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.damage.svg, assets/icons/model.material.damage.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.damage.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.eos.svg, assets/icons/model.material.eos.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.eos.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.hyperelastic.svg, assets/icons/model.material.hyperelastic.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.hyperelastic.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.plasticity.svg, assets/icons/model.material.plasticity.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.plasticity.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.material.thermal.svg, assets/icons/model.material.thermal.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.material.thermal.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.orientation.svg, assets/icons/model.orientation.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.orientation.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.reference_point.create.svg, assets/icons/model.reference_point.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.reference_point.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.section.composite.svg, assets/icons/model.section.composite.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.section.composite.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.section.create.svg, assets/icons/model.section.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.section.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.set.create.svg, assets/icons/model.set.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.set.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.step.activate.svg, assets/icons/model.step.activate.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.activate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.step.create.svg, assets/icons/model.step.create.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.create.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.step.explicit.svg, assets/icons/model.step.explicit.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.explicit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.step.heat.svg, assets/icons/model.step.heat.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.heat.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.step.nonlinear.svg, assets/icons/model.step.nonlinear.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.step.nonlinear.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/model.units.svg, assets/icons/model.units.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/model.units.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.animate.svg, assets/icons/results.animate.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.animate.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.contour.svg, assets/icons/results.contour.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.contour.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.convergence.svg, assets/icons/results.convergence.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.convergence.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.cut.svg, assets/icons/results.cut.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.cut.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.deformed.svg, assets/icons/results.deformed.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.deformed.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.display_group.svg, assets/icons/results.display_group.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.display_group.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.free_body.svg, assets/icons/results.free_body.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.free_body.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.modes.svg, assets/icons/results.modes.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.modes.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.path.svg, assets/icons/results.path.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.path.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.probe.svg, assets/icons/solve.probe.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.probe.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.reactions.svg, assets/icons/results.reactions.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.reactions.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.read.svg, assets/icons/results.read.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.read.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.streamlines.svg, assets/icons/results.streamlines.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.streamlines.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/results.xy.svg, assets/icons/results.xy.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/results.xy.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.blast.svg, assets/icons/solve.blast.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.blast.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.explicit.svg, assets/icons/solve.explicit.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.explicit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.fluid.svg, assets/icons/solve.fluid.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.fluid.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.frequency.svg, assets/icons/solve.frequency.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.frequency.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.fsi.svg, assets/icons/solve.fsi.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.fsi.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.static.svg, assets/icons/solve.static.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.static.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/solve.run.svg, assets/icons/solve.run.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/solve.run.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/file.sample.svg, assets/icons/file.sample.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.sample.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.eye.svg, assets/icons/ui.eye.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.eye.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.fit.svg, assets/icons/ui.fit.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.fit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.help.svg, assets/icons/ui.help.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.help.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.home.svg, assets/icons/ui.home.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.home.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.moon.svg, assets/icons/ui.moon.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.moon.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.orbit.svg, assets/icons/ui.orbit.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.orbit.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.pan.svg, assets/icons/ui.pan.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.pan.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.perspective.svg, assets/icons/ui.perspective.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.perspective.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.search.svg, assets/icons/ui.search.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.search.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.style.svg, assets/icons/ui.style.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.style.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.sun.svg, assets/icons/ui.sun.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.sun.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.views.svg, assets/icons/ui.views.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.views.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/ui.zoom.svg, assets/icons/ui.zoom.vectorcraft | FieldCraft contributors | Original interface icon (navigation bar, title bar, browser) drawn with VectorCraft from `assets/icons/src/ui.zoom.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/app-icon/icon.vectorcraft, assets/app-icon/icon.svg, assets/app-icon/icon.png | FieldCraft contributors | Original application icon (a hexahedral-meshed cube with a banded colour fringe on its faces on a rounded-square backdrop), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs); editable source, SVG and 1024 × 1024 PNG export | MIT OR Apache-2.0 |
+| assets/app-icon/icon-small.vectorcraft, assets/app-icon/icon-small.svg, assets/app-icon/icon-small.png | FieldCraft contributors | Original simplified application icon for 16–32 px (the fringe cube alone; no mesh or floor grid), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
+| assets/app-icon/layers/01-floor.vectorcraft, assets/app-icon/FieldCraft.icon/Assets/01-floor.svg | FieldCraft contributors | Original isometric floor grid with a radial fade (Default appearance), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
+| assets/app-icon/layers/01-floor-dark.vectorcraft, assets/app-icon/FieldCraft.icon/Assets/01-floor-dark.svg | FieldCraft contributors | Original isometric floor grid with a radial fade (Dark appearance), drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
+| assets/app-icon/layers/02-part.vectorcraft, assets/app-icon/FieldCraft.icon/Assets/02-part.svg | FieldCraft contributors | Original cube faces with a banded colour fringe and transparent gaps at the shared edges, and the hexahedral mesh lines clipped to them, drawn with VectorCraft by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
+| assets/app-icon/FieldCraft.icon/icon.json | FieldCraft contributors | Icon Composer composition of the layers above (Default and Dark floor grid), written by `cargo xtask app-icon` (xtask/src/app_icon.rs) | MIT OR Apache-2.0 |
+| assets/app-icon/Assets.car | FieldCraft contributors | Apple actool compilation of assets/app-icon/FieldCraft.icon; contains original artwork only | MIT OR Apache-2.0 |
+| assets/app-icon/icon.icns | FieldCraft contributors | iconutil compilation of assets/app-icon/icon.iconset | MIT OR Apache-2.0 |
+| assets/app-icon/icon.ico | FieldCraft contributors | ImageMagick compilation (16–256 px) of sips exports of assets/app-icon/icon-small.png (≤ 32 px) and assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_16x16.png | FieldCraft contributors | sips export (16 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_16x16@2x.png | FieldCraft contributors | sips export (32 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_32x32.png | FieldCraft contributors | sips export (32 px) of assets/app-icon/icon-small.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_32x32@2x.png | FieldCraft contributors | sips export (64 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_128x128.png | FieldCraft contributors | sips export (128 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_128x128@2x.png | FieldCraft contributors | sips export (256 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_256x256.png | FieldCraft contributors | sips export (256 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_256x256@2x.png | FieldCraft contributors | sips export (512 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_512x512.png | FieldCraft contributors | sips export (512 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| assets/app-icon/icon.iconset/icon_512x512@2x.png | FieldCraft contributors | sips export (1024 px) of assets/app-icon/icon.png | MIT OR Apache-2.0 |
+| packaging/macos/README.txt, packaging/linux/io.github.jyviko.fieldcraft.desktop, packaging/macos/entitlements.plist | FieldCraft contributors | Original packaging text: the disk image's install note, the Linux desktop entry and the (empty) hardened-runtime entitlements | MIT OR Apache-2.0 |
 | crates/ui-egui/fonts/Inter-SemiBold.ttf | The Inter Project Authors | https://github.com/rsms/inter release v4.1 (Inter-4.1.zip, extras/ttf/Inter-SemiBold.ttf), unmodified; licence text in crates/ui-egui/fonts/OFL.txt; the interface's caps labels (theme::LABEL_FAMILY) | SIL OFL 1.1 |
 
 ## Adapted code
@@ -165,9 +168,18 @@ is committed and listed here with its exports.
 | crates/ui-egui/src/gpu.rs, crates/ui-egui/src/theme.rs (tokens and their values), crates/ui-egui/src/control.rs, crates/ui-egui/src/lib.rs (input injection, screenshots), crates/ui-egui/src/toolbar.rs (workspace switcher, tabs, panels with drop-downs, fitting), crates/ui-egui/src/appbar.rs (application bar; the mark is drawn from assets/app-icon/icon-small.svg's coordinates), crates/ui-egui/src/titlebar.rs (caption buttons, drag and resize zones; SolidCraft took it from VectorCraft), crates/ui-egui/src/frame.rs (windows, heading bands), crates/ui-egui/src/browser.rs (row drawing), crates/ui-egui/src/palette.rs (command line and search), crates/ui-egui/src/timeline.rs (timeline strip, transport), crates/ui-egui/src/viewport.rs (navigation bar, orientation gizmo), crates/ui-egui/src/files.rs (background opening, file pickers as host services) | SolidCraft `crates/ui-egui/src/` (titlebar.rs also VectorCraft `crates/ui-egui/src/titlebar.rs`) | MIT OR Apache-2.0 |
 | crates/io/src/fs.rs (atomic writes) | SolidCraft `crates/io/src/safe_write.rs` | MIT OR Apache-2.0 |
 | crates/io/src/recovery.rs (recovery folder, entries, locks) | SolidCraft `crates/engine/src/recovery.rs` | MIT OR Apache-2.0 |
-| apps/modelcraft/src/control_server.rs | SolidCraft `apps/solidcraft/src/control_server.rs` | MIT OR Apache-2.0 |
+| apps/fieldcraft/src/control_server.rs | SolidCraft `apps/solidcraft/src/control_server.rs` | MIT OR Apache-2.0 |
 | crates/mcp/src/ (JSON-RPC framing, MCP lifecycle, tool schema checks, the control-channel backend, base64) | SolidCraft `crates/mcp/src/` | MIT OR Apache-2.0 |
 | crates/io/src/roots.rs (the rules of read and write roots) | VectorCraft's automation roots (docs/mcp.md there) | MIT OR Apache-2.0 |
+| packaging/env.sh, packaging/.shellcheckrc, packaging/macos/package.sh, packaging/macos/Info.plist.in, packaging/linux/package.sh, packaging/linux/AppRun, packaging/windows/package.ps1 | SolidCraft `packaging/` and VectorCraft `packaging/` (signing and notarization in macos/package.sh) | MIT OR Apache-2.0 |
+| packaging/macos/import-cert.sh | VectorCraft `packaging/macos/import-cert.sh` | MIT OR Apache-2.0 |
+| packaging/windows/check-exe.ps1 | SolidCraft `packaging/windows/check-icon.ps1` | MIT OR Apache-2.0 |
+| apps/fieldcraft-web/ (the web runner, browser file services and downloads, Trunk configuration, index.html) | VectorCraft `apps/vectorcraft-web/` and SolidCraft `apps/solidcraft-web/` | MIT OR Apache-2.0 |
+| crates/io/src/memory.rs (files kept in memory for the browser build) | SolidCraft `crates/io/src/vfs.rs` | MIT OR Apache-2.0 |
+| .github/workflows/pages.yml | SolidCraft `.github/workflows/pages.yml` | MIT OR Apache-2.0 |
+| .github/workflows/release.yml, .github/release-notes.md, docs/releasing.md | SolidCraft `.github/workflows/release.yml`, `.github/release-notes.md`, `docs/releasing.md`; VectorCraft `.github/workflows/release.yml` | MIT OR Apache-2.0 |
+| .github/workflows/packaging-lint.yml | SolidCraft `.github/workflows/packaging-lint.yml` (itself adapted from PhotoCraft, https://github.com/storytold/photocraft, Apache-2.0) | MIT OR Apache-2.0 |
+| .github/workflows/arch-check.yml (the riscv64 cross build) | SolidCraft `.github/workflows/ci.yml` (`riscv64-gates`) | MIT OR Apache-2.0 |
 
 ## Test oracles
 

CODE_OF_CONDUCT.md

@@ -0,0 +1,16 @@
+# Code of conduct
+
+FieldCraft is built in the open by people with different backgrounds and levels of experience.
+Everyone taking part — in issues, pull requests, reviews and discussions — is expected to:
+
+- be respectful and assume good intent; criticise work, never people;
+- keep discussion technical, specific and on topic;
+- not harass, insult, demean or discriminate against anyone, publicly or privately;
+- respect the project's decisions on scope, licences and clean-room rules.
+
+The maintainer may edit or remove comments, close threads, and block anyone who does not follow
+this code. Report problems privately to the maintainer through the contact on the GitHub
+profile of [@jyviko](https://github.com/jyviko).
+
+This code is our own, written in the spirit of the
+[Contributor Covenant](https://www.contributor-covenant.org/).

CONTRIBUTING.md

@@ -1,10 +1,80 @@
-# Contributing
+# Contributing to FieldCraft
 
-Thanks for helping. Read [AGENTS.md](AGENTS.md) first: it holds the rules every change follows,
-whether a person or an agent writes it.
+FieldCraft is one open-source modeler for structures, heat and fluids, written in pure Rust: open a
+parametric SolidCraft part, mesh it (tet or all-hex), define the analysis, solve it with our own
+implicit, explicit, thermal or lattice Boltzmann solvers, and look at verified results — from the
+desktop app, the command line, or an AI agent over MCP.
 
-1. Branch from `main`, keep a pull request to one topic.
-2. Run `cargo xtask ci` before pushing; CI runs the same gates.
+Help is welcome, whether that's a one-line fix, a verification benchmark, a file format or owning a
+whole solver. This page covers how to build it, the few rules that aren't negotiable, where help is
+needed most, and how to claim work. The rules every change follows, by a person or an agent, are in
+[AGENTS.md](AGENTS.md).
+
+## Get it running (about 10 minutes on a fast machine)
+
+You need stable Rust 1.95 or newer.
+
+```sh
+git clone https://github.com/jyviko/fieldcraft && cd fieldcraft
+cargo run --release -p fieldcraft -- --sample cantilever   # the desktop app on a sample model
+cargo run -p fieldcraft-cli -- commands                    # every command and its parameters
+cargo test -p fieldcraft-solver                            # the tests of one crate
+cargo xtask oracle --quick                                 # the verification cases (docs/oracle.md)
+```
+
+`develop` is the trunk and `main` holds released code. The layers and crates are in
+[docs/architecture.md](docs/architecture.md); every user-visible capability is a command in
+`crates/engine/src/cmd/` ([docs/features.md](docs/features.md) lists them).
+
+## Where help is wanted most
+
+See the [`help wanted`](https://github.com/jyviko/fieldcraft/labels/help%20wanted) and
+[`good first issue`](https://github.com/jyviko/fieldcraft/labels/good%20first%20issue) labels, and
+the `area:` labels for your field. In order of how much they would help users:
+
+1. **Reproducible meshes** ([#115](https://github.com/jyviko/fieldcraft/issues/115)). The same part
+   must give the same tet mesh on every platform and every run, as the solvers already do.
+2. **All-hex meshing of thin and curved parts** ([#85](https://github.com/jyviko/fieldcraft/issues/85)).
+   The octree mesher over-refines thin walls; concave transition templates and an up-front depth
+   are next. Hex meshing is the centre of gravity of the project.
+3. **Getting results in and out**: ParaView export ([#90](https://github.com/jyviko/fieldcraft/issues/90)),
+   Gmsh import ([#91](https://github.com/jyviko/fieldcraft/issues/91)), Abaqus deck reading
+   ([#98](https://github.com/jyviko/fieldcraft/issues/98)), CSV and STL
+   ([#92](https://github.com/jyviko/fieldcraft/issues/92), [#93](https://github.com/jyviko/fieldcraft/issues/93)).
+4. **Verification benchmarks** ([#97](https://github.com/jyviko/fieldcraft/issues/97),
+   [#106](https://github.com/jyviko/fieldcraft/issues/106)). An engineer with a published benchmark
+   can add it as an oracle case without touching solver code.
+5. **Nonlinear elements and materials**: incompatible modes at finite strain
+   ([#82](https://github.com/jyviko/fieldcraft/issues/82)), kinematic hardening
+   ([#81](https://github.com/jyviko/fieldcraft/issues/81)), and the material library
+   ([#99](https://github.com/jyviko/fieldcraft/issues/99)).
+6. **The app**: typed command forms ([#112](https://github.com/jyviko/fieldcraft/issues/112)), XY and
+   path plots ([#94](https://github.com/jyviko/fieldcraft/issues/94), [#95](https://github.com/jyviko/fieldcraft/issues/95)).
+
+Bigger areas on the [roadmap](ROADMAP.md) — contact, dynamics, composites, coupled fields, wave
+propagation, turbulence — are open to anyone who wants to own one: start a thread in
+[Discussions](https://github.com/jyviko/fieldcraft/discussions).
+
+## Before you start: claim an issue
+
+Every change starts from an issue, and only the maintainer merges.
+
+1. Pick an open issue labelled **help wanted** or **good first issue** that is not labelled
+   **claimed**. If what you want to do has no issue, open one first and wait for a reply.
+2. Comment that you would like to take it. The maintainer assigns it to you and labels it
+   **claimed**; then it is yours. Work on unassigned issues may not be accepted.
+3. Open a draft pull request early, linked with `Closes #N`. An issue with no visible progress
+   for 14 days goes back to the pool.
+
+Issues labelled **in progress** are being worked on by the core team; please don't start on them.
+
+## Making the change
+
+1. Branch from `develop` (the trunk; `main` holds released code only) and open the pull request
+   against `develop`. Keep it to one topic.
+2. Before pushing: `cargo fmt --all`, and `cargo clippy -p <crate> --all-targets -- -D warnings`
+   and `cargo test -p <crate>` for the crates you touched. CI runs the full gate on your pull
+   request once the maintainer approves the run.
 3. User-visible behaviour is a command (`crates/engine/src/cmd/`) with tests, including hostile
    parameters.
 4. Meshing and solver algorithms cite the paper they come from in the module docs.
@@ -12,3 +82,8 @@ whether a person or an agent writes it.
    (see [docs/adr/0001-libraries.md](docs/adr/0001-libraries.md)).
 
 By contributing you agree your work is licensed under MIT OR Apache-2.0.
+
+`develop` and `main` are protected: changes land on `develop` only through pull requests that the
+maintainer has reviewed,
+as rebase merges (keep each commit building and passing its tests). Be kind: see the
+[code of conduct](CODE_OF_CONDUCT.md).

Cargo.lock

@@ -425,6 +425,12 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "bit-set"
 version = "0.10.0"
@@ -461,6 +467,15 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2f6c7dbe95a6ed67ad9f18e57daf93a2f034c524b99fd2b76d18fdfeb6660aa"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "block2"
 version = "0.5.1"
@@ -694,6 +709,12 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "const-oid"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6ef517f0926dd24a1582492c791b6a4818a4d94e789a334894aa15b0d12f55c"
+
 [[package]]
 name = "convert_case"
 version = "0.4.0"
@@ -749,6 +770,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "cpufeatures"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca28b0ae3115b884660db4118d803791fd6756b6e88f39c0f3f7859060d7566"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "craft-ui"
 version = "0.1.0"
@@ -807,6 +837,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "crypto-common"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce6e4c961d6cd6c9a86db418387425e8bdeaf05b3c8bc1411e6dca4c252f1453"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "cursor-icon"
 version = "1.2.0"
@@ -849,8 +888,19 @@ version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
- "block-buffer",
- "crypto-common",
+ "block-buffer 0.10.4",
+ "crypto-common 0.1.7",
+]
+
+[[package]]
+name = "digest"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1dd6dbb5841937940781866fa1281a1ff7bd3bf827091440879f9994983d5c2"
+dependencies = [
+ "block-buffer 0.12.1",
+ "const-oid",
+ "crypto-common 0.2.2",
 ]
 
 [[package]]
@@ -1035,6 +1085,20 @@ dependencies = [
  "bytemuck",
 ]
 
+[[package]]
+name = "embed-resource"
+version = "3.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6168487b5e7eb2673e6efe1200b1848016e436a6ca0b8031bf04bd9d493a249f"
+dependencies = [
+ "cc",
+ "memchr",
+ "rustc_version",
+ "toml",
+ "vswhom",
+ "winreg",
+]
+
 [[package]]
 name = "endi"
 version = "1.1.1"
@@ -1171,6 +1235,230 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97b65636e5b9ef369943878ac74335ba1c55c1cb6adbf1e2c293c624248d693"
 
+[[package]]
+name = "fieldcraft"
+version = "0.5.5"
+dependencies = [
+ "eframe",
+ "egui",
+ "embed-resource",
+ "fieldcraft-engine",
+ "fieldcraft-io",
+ "fieldcraft-ui-egui",
+ "log",
+ "rfd",
+ "serde_json",
+]
+
+[[package]]
+name = "fieldcraft-cli"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-engine",
+ "fieldcraft-io",
+ "fieldcraft-mcp",
+ "serde_json",
+]
+
+[[package]]
+name = "fieldcraft-decks"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "serde_json",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-engine"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-decks",
+ "fieldcraft-explicit",
+ "fieldcraft-fem",
+ "fieldcraft-geometry",
+ "fieldcraft-io",
+ "fieldcraft-lbm",
+ "fieldcraft-mesh",
+ "fieldcraft-model",
+ "fieldcraft-parallel",
+ "fieldcraft-render",
+ "fieldcraft-solver",
+ "log",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.21",
+ "zip",
+]
+
+[[package]]
+name = "fieldcraft-explicit"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-fem",
+ "fieldcraft-model",
+ "fieldcraft-parallel",
+ "serde",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-fem"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-geometry"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "quick-xml",
+ "serde_json",
+ "solidcraft-doc",
+ "solidcraft-engine",
+ "solidcraft-geom",
+ "solidcraft-io",
+ "solidcraft-kernel",
+ "thiserror 2.0.21",
+ "zip",
+]
+
+[[package]]
+name = "fieldcraft-io"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "log",
+ "serde",
+ "serde_json",
+ "sha2 0.11.1",
+ "thiserror 2.0.21",
+ "zip",
+]
+
+[[package]]
+name = "fieldcraft-lbm"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-mesh",
+ "fieldcraft-model",
+ "fieldcraft-parallel",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-mcp"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-engine",
+ "fieldcraft-io",
+ "fieldcraft-render",
+ "fieldcraft-testkit",
+ "serde_json",
+]
+
+[[package]]
+name = "fieldcraft-mesh"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "num-bigint",
+ "num-rational",
+ "num-traits",
+ "robust",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-model"
+version = "0.5.5"
+dependencies = [
+ "serde",
+ "serde_json",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-parallel"
+version = "0.5.5"
+dependencies = [
+ "rayon",
+]
+
+[[package]]
+name = "fieldcraft-render"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-model",
+ "png",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "fieldcraft-solver"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-fem",
+ "fieldcraft-mesh",
+ "fieldcraft-model",
+ "fieldcraft-parallel",
+ "serde",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-testkit"
+version = "0.5.5"
+dependencies = [
+ "fieldcraft-engine",
+ "fieldcraft-geometry",
+ "fieldcraft-mesh",
+ "serde_json",
+ "thiserror 2.0.21",
+]
+
+[[package]]
+name = "fieldcraft-ui-egui"
+version = "0.5.5"
+dependencies = [
+ "craft-ui",
+ "egui",
+ "egui-wgpu",
+ "fieldcraft-decks",
+ "fieldcraft-engine",
+ "fieldcraft-explicit",
+ "fieldcraft-geometry",
+ "fieldcraft-model",
+ "fieldcraft-render",
+ "log",
+ "resvg",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "fieldcraft-web"
+version = "0.5.5"
+dependencies = [
+ "base64",
+ "eframe",
+ "egui",
+ "fieldcraft-engine",
+ "fieldcraft-io",
+ "fieldcraft-ui-egui",
+ "js-sys",
+ "log",
+ "rfd",
+ "serde_json",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.14"
@@ -1531,6 +1819,15 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "hybrid-array"
+version = "0.4.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27f864f10dfb56725ce5ce5472bc52252c8f93a4ab86327122cebf62c5f59a17"
+dependencies = [
+ "typenum",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.65"
@@ -1855,198 +2152,6 @@ dependencies = [
  "simd-adler32",
 ]
 
-[[package]]
-name = "modelcraft"
-version = "0.1.0"
-dependencies = [
- "eframe",
- "egui",
- "log",
- "modelcraft-engine",
- "modelcraft-io",
- "modelcraft-ui-egui",
- "rfd",
- "serde_json",
-]
-
-[[package]]
-name = "modelcraft-cli"
-version = "0.1.0"
-dependencies = [
- "modelcraft-engine",
- "modelcraft-io",
- "modelcraft-mcp",
- "serde_json",
-]
-
-[[package]]
-name = "modelcraft-decks"
-version = "0.1.0"
-dependencies = [
- "modelcraft-model",
- "serde_json",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-engine"
-version = "0.1.0"
-dependencies = [
- "log",
- "modelcraft-decks",
- "modelcraft-explicit",
- "modelcraft-fem",
- "modelcraft-geometry",
- "modelcraft-io",
- "modelcraft-lbm",
- "modelcraft-mesh",
- "modelcraft-model",
- "modelcraft-render",
- "modelcraft-solver",
- "serde",
- "serde_json",
- "thiserror 2.0.21",
- "zip",
-]
-
-[[package]]
-name = "modelcraft-explicit"
-version = "0.1.0"
-dependencies = [
- "modelcraft-fem",
- "modelcraft-model",
- "serde",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-fem"
-version = "0.1.0"
-dependencies = [
- "modelcraft-model",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-geometry"
-version = "0.1.0"
-dependencies = [
- "modelcraft-model",
- "quick-xml",
- "serde_json",
- "solidcraft-doc",
- "solidcraft-engine",
- "solidcraft-geom",
- "solidcraft-io",
- "solidcraft-kernel",
- "thiserror 2.0.21",
- "zip",
-]
-
-[[package]]
-name = "modelcraft-io"
-version = "0.1.0"
-dependencies = [
- "log",
- "modelcraft-model",
- "serde",
- "serde_json",
- "sha2",
- "thiserror 2.0.21",
- "zip",
-]
-
-[[package]]
-name = "modelcraft-lbm"
-version = "0.1.0"
-dependencies = [
- "modelcraft-mesh",
- "modelcraft-model",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-mcp"
-version = "0.1.0"
-dependencies = [
- "modelcraft-engine",
- "modelcraft-io",
- "modelcraft-render",
- "modelcraft-testkit",
- "serde_json",
-]
-
-[[package]]
-name = "modelcraft-mesh"
-version = "0.1.0"
-dependencies = [
- "modelcraft-model",
- "num-bigint",
- "num-rational",
- "num-traits",
- "robust",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-model"
-version = "0.1.0"
-dependencies = [
- "serde",
- "serde_json",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-render"
-version = "0.1.0"
-dependencies = [
- "modelcraft-model",
- "png",
- "serde",
- "serde_json",
-]
-
-[[package]]
-name = "modelcraft-solver"
-version = "0.1.0"
-dependencies = [
- "modelcraft-fem",
- "modelcraft-model",
- "serde",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-testkit"
-version = "0.1.0"
-dependencies = [
- "modelcraft-engine",
- "modelcraft-geometry",
- "modelcraft-mesh",
- "serde_json",
- "thiserror 2.0.21",
-]
-
-[[package]]
-name = "modelcraft-ui-egui"
-version = "0.1.0"
-dependencies = [
- "craft-ui",
- "egui",
- "egui-wgpu",
- "log",
- "modelcraft-decks",
- "modelcraft-engine",
- "modelcraft-explicit",
- "modelcraft-geometry",
- "modelcraft-model",
- "modelcraft-render",
- "resvg",
- "serde",
- "serde_json",
-]
-
 [[package]]
 name = "moxcms"
 version = "0.8.1"
@@ -3195,6 +3300,15 @@ dependencies = [
  "syn 3.0.9",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7523beb55eece201a2356bee0bbca0d1ab466c14c07703b2e0ee6d42cb0c2c"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "sha2"
 version = "0.10.9"
@@ -3202,8 +3316,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
 dependencies = [
  "cfg-if",
- "cpufeatures",
- "digest",
+ "cpufeatures 0.2.17",
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "sha2"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47d7069beb7d6ac7b9acd1039986e73443f24234f41074da099d6f994ac9ad19"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.3.1",
+ "digest 0.11.3",
 ]
 
 [[package]]
@@ -3370,7 +3495,7 @@ dependencies = [
  "log",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.10.9",
  "solidcraft-geom",
  "solidcraft-kernel",
  "solidcraft-sketch",
@@ -3412,7 +3537,7 @@ dependencies = [
  "quick-xml",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.10.9",
  "solidcraft-doc",
  "solidcraft-geom",
  "solidcraft-kernel",
@@ -3647,6 +3772,21 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "toml"
+version = "1.1.8+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20489e00e4d8741d6be680764cc12e270655e375a20d1011e844a9c3379e678d"
+dependencies = [
+ "indexmap",
+ "serde_core",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_parser",
+ "toml_writer",
+ "winnow",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "1.1.2+spec-1.1.0"
@@ -3677,6 +3817,12 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "toml_writer"
+version = "1.1.3+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06bdbd8cfc056b8d2e2e85f29b56a3bdbecb527cef81eb39e3e7b98af4652770"
+
 [[package]]
 name = "tracing"
 version = "0.1.44"
@@ -3970,6 +4116,26 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "vswhom"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be979b7f07507105799e854203b470ff7c78a1639e330a58f183b5fea574608b"
+dependencies = [
+ "libc",
+ "vswhom-sys",
+]
+
+[[package]]
+name = "vswhom-sys"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb067e4cbd1ff067d1df46c9194b5de0e98efd2810bbc95c5d5e5f25a3231150"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "walkdir"
 version = "2.5.0"
@@ -4739,6 +4905,16 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "winreg"
+version = "0.56.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d6f32a0ff4a9f6f01231eb2059cc85479330739333e0e58cadf03b6af2cca10"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "wit-bindgen"
 version = "0.57.1"
@@ -4810,7 +4986,7 @@ checksum = "e450f9b2ed1dff33c94c12589a87338689467b9c4f5d8a5710bd09a847d2c8a7"
 
 [[package]]
 name = "xtask"
-version = "0.1.0"
+version = "0.5.5"
 dependencies = [
  "serde_json",
 ]

Cargo.toml

@@ -3,29 +3,30 @@ resolver = "3"
 members = ["crates/*", "apps/*", "xtask"]
 
 [workspace.package]
-version = "0.1.0"
+version = "0.5.5"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 rust-version = "1.95"
-authors = ["ModelCraft contributors"]
-repository = "https://github.com/jyviko/modelcraft"
+authors = ["FieldCraft contributors"]
+repository = "https://github.com/jyviko/fieldcraft"
 
 [workspace.dependencies]
 # internal
-modelcraft-model = { path = "crates/model" }
-modelcraft-geometry = { path = "crates/geometry" }
-modelcraft-mesh = { path = "crates/mesh" }
-modelcraft-decks = { path = "crates/decks" }
-modelcraft-io = { path = "crates/io" }
-modelcraft-fem = { path = "crates/fem" }
-modelcraft-solver = { path = "crates/solver" }
-modelcraft-explicit = { path = "crates/explicit" }
-modelcraft-lbm = { path = "crates/lbm" }
-modelcraft-engine = { path = "crates/engine" }
-modelcraft-testkit = { path = "crates/testkit" }
-modelcraft-render = { path = "crates/render" }
-modelcraft-ui-egui = { path = "crates/ui-egui" }
-modelcraft-mcp = { path = "crates/mcp" }
+fieldcraft-model = { path = "crates/model" }
+fieldcraft-parallel = { path = "crates/parallel" }
+fieldcraft-geometry = { path = "crates/geometry" }
+fieldcraft-mesh = { path = "crates/mesh" }
+fieldcraft-decks = { path = "crates/decks" }
+fieldcraft-io = { path = "crates/io" }
+fieldcraft-fem = { path = "crates/fem" }
+fieldcraft-solver = { path = "crates/solver" }
+fieldcraft-explicit = { path = "crates/explicit" }
+fieldcraft-lbm = { path = "crates/lbm" }
+fieldcraft-engine = { path = "crates/engine" }
+fieldcraft-testkit = { path = "crates/testkit" }
+fieldcraft-render = { path = "crates/render" }
+fieldcraft-ui-egui = { path = "crates/ui-egui" }
+fieldcraft-mcp = { path = "crates/mcp" }
 
 # foundation
 thiserror = "2"
@@ -37,8 +38,8 @@ log = "0.4"
 zip = { version = "3", default-features = false, features = ["deflate"] }
 quick-xml = "0.41"
 
-# content hashes and part checksums of .modelcraft files (the version SolidCraft uses)
-sha2 = "0.10"
+# content hashes and part checksums of .fieldcraft files (the version SolidCraft uses)
+sha2 = "0.11"
 
 # images (PNG snapshots and screenshots)
 png = "0.18"
@@ -61,7 +62,7 @@ solidcraft-geom = { git = "https://github.com/bherbruck/solidcraft", rev = "de14
 solidcraft-kernel = { git = "https://github.com/bherbruck/solidcraft", rev = "de1479029dd6821cffd28b70688a58e7f61f0cfd" }
 solidcraft-doc = { git = "https://github.com/bherbruck/solidcraft", rev = "de1479029dd6821cffd28b70688a58e7f61f0cfd" }
 solidcraft-io = { git = "https://github.com/bherbruck/solidcraft", rev = "de1479029dd6821cffd28b70688a58e7f61f0cfd" }
-# Runs SolidCraft command scripts (the test corpus recipes); only behind modelcraft-geometry's
+# Runs SolidCraft command scripts (the test corpus recipes); only behind fieldcraft-geometry's
 # `scripts` feature.
 solidcraft-engine = { git = "https://github.com/bherbruck/solidcraft", rev = "de1479029dd6821cffd28b70688a58e7f61f0cfd" }
 
@@ -84,7 +85,15 @@ opt-level = 1
 
 # The lattice Boltzmann kernels are compute loops over millions of cells; their verification
 # runs (tests) need them optimised.
-[profile.dev.package.modelcraft-lbm]
+[profile.dev.package.fieldcraft-lbm]
+opt-level = 3
+
+# Meshing and the sparse solver are compute loops too: the tet quality stage and the
+# mesh-convergence oracle cases (tests/oracle) run in tests.
+[profile.dev.package.fieldcraft-mesh]
+opt-level = 3
+
+[profile.dev.package.fieldcraft-solver]
 opt-level = 3
 
 # Tests and lints (`cargo xtask ci`, GitHub CI). Debug assertions are off because truck's
@@ -100,7 +109,13 @@ incremental = false
 [profile.ci.package."*"]
 opt-level = 2
 
-[profile.ci.package.modelcraft-lbm]
+[profile.ci.package.fieldcraft-lbm]
+opt-level = 3
+
+[profile.ci.package.fieldcraft-mesh]
+opt-level = 3
+
+[profile.ci.package.fieldcraft-solver]
 opt-level = 3
 
 [profile.release]
@@ -110,7 +125,7 @@ codegen-units = 16
 debug = "line-tables-only"
 
 # SolidCraft builds truck and egui-wgpu with local fixes (its vendor/ directory). Patches don't
-# reach a dependent workspace, so ModelCraft applies the same ones from the same pinned commit;
+# reach a dependent workspace, so FieldCraft applies the same ones from the same pinned commit;
 # keep this list and the rev in step with SolidCraft's [patch.crates-io].
 [patch.crates-io]
 truck-shapeops = { git = "https://github.com/bherbruck/solidcraft", rev = "de1479029dd6821cffd28b70688a58e7f61f0cfd" }

LICENSE-MIT

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026 ModelCraft contributors
+Copyright (c) 2026 FieldCraft contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

NOTICE

@@ -1,5 +1,5 @@
-ModelCraft
-Copyright (c) 2026 ModelCraft contributors.
+FieldCraft
+Copyright (c) 2026 FieldCraft contributors.
 Licensed under the MIT License or the Apache License, Version 2.0, at your option
 (LICENSE-MIT, LICENSE-APACHE).
 
@@ -13,7 +13,7 @@ Copyright (c) RICOS Co. Ltd.), some with SolidCraft's modifications.
 Some code is adapted from sibling projects (SolidCraft, CADCraft), licensed MIT OR Apache-2.0;
 ATTRIBUTION.md lists the files.
 
-ModelCraft is an independent project and is not affiliated with, sponsored by or endorsed by
+FieldCraft is an independent project and is not affiliated with, sponsored by or endorsed by
 Dassault Systèmes, MSC Software, Siemens Digital Industries Software or Ansys, Inc. Abaqus,
 Nastran, MSC Nastran, Simcenter Nastran and LS-DYNA are trademarks of their respective owners;
 they are used here only to describe file compatibility.

README.md

@@ -1,22 +1,99 @@
-# ModelCraft
+# FieldCraft
 
-An open-source, clean-room CAE modeling application in pure Rust: geometry to analysis-ready
-finite element models, with robust tetrahedral and hexahedral meshing, solver decks for Abaqus,
-Nastran and LS-DYNA, and its own linear static and modal solver. Desktop, browser and AI agents
-drive the same commands.
+An open-source, clean-room CAE application in pure Rust: from a parametric SolidCraft part to a
+verified finite element analysis, with tetrahedral and hexahedral meshing, its own implicit,
+explicit, thermal and lattice Boltzmann solvers, and decks for Abaqus, Nastran and LS-DYNA. The
+desktop app, the command line and AI agents (over MCP) drive the same commands.
 
-**Status:** early. The workspace, quality gates, the FE model, the command engine and the
-geometry boundary (SolidCraft's kernel and tessellator) are in place; meshing is next. See
-[ROADMAP.md](ROADMAP.md).
+**Status:** early but working end to end — open a part, mesh it, define the analysis, solve,
+see the results — with a nonlinear implicit solver (large deformation, plasticity, rubber) now
+in place. Hex meshing is the centre of gravity. Next: buckling and arc-length, contact, then
+the wider material and multiphysics library. See [ROADMAP.md](ROADMAP.md).
+**Want to help?** Pick an issue labelled
+[good first issue](https://github.com/jyviko/fieldcraft/labels/good%20first%20issue) or
+[help wanted](https://github.com/jyviko/fieldcraft/labels/help%20wanted) and read
+[CONTRIBUTING.md](CONTRIBUTING.md).
+
+![An AI agent analyses an I-beam cantilever in FieldCraft over MCP: open, hex mesh, steel, clamp and tip load, solve, von Mises contours, the deformed shape and an orbit round it](docs/media/ibeam-analysis.gif)
+
+An AI agent drives FieldCraft over [MCP](docs/mcp.md), each stage captioned with the tool it
+calls: it opens an I-beam, hex meshes it, defines the material, the clamp and a 1000 N tip load,
+solves, and shows the von Mises stress and the deformed shape (tip deflection 0.176 mm; beam
+theory with shear 0.177 mm).
+[MP4](docs/media/ibeam-analysis.mp4) · regenerated by [tools/demo-video](tools/demo-video/README.md).
+
+## Download
+
+[![Download for macOS](https://img.shields.io/badge/macOS-Download-000000?style=for-the-badge&logo=apple&logoColor=white)](https://github.com/jyviko/fieldcraft/releases/latest)
+[![Download for Windows](https://img.shields.io/badge/Windows-Download-0078D6?style=for-the-badge)](https://github.com/jyviko/fieldcraft/releases/latest)
+[![Download for Linux](https://img.shields.io/badge/Linux-Download-FCC624?style=for-the-badge&logo=linux&logoColor=black)](https://github.com/jyviko/fieldcraft/releases/latest)
+
+- **macOS:** open the `.dmg` and drag FieldCraft into Applications (Apple silicon and Intel).
+- **Windows:** unzip and run `fieldcraft.exe`.
+- **Linux:** the `.AppImage` (allow it to run as a program), or the `.tar.gz`.
+- **Command line:** `fieldcraft-cli` ships in every package; AI agents connect to it over MCP
+  ([docs/mcp.md](docs/mcp.md)).
+
+Every release lists its checksums in `SHA256SUMS.txt`. Building from source is in
+[CONTRIBUTING.md](CONTRIBUTING.md#get-it-running-about-10-minutes-on-a-fast-machine).
+
+## Hex meshing a part that does not sweep
+
+A filleted L-bracket with a hole through each leg cannot be swept in one piece. Split into 30
+cells in SolidCraft, FieldCraft meshes it all-hex as one conforming mesh — O-grids round the holes,
+graded through the fillet — and its hex20 tip deflection matches a fine tet10 solution to 0.1 %.
+The same part also meshes all-hex automatically with the octree mesher (`mesh.hex.octree`).
+
+| Cells | Conforming hex mesh | Von Mises (clamp and load drawn) |
+|---|---|---|
+| ![The bracket split into 30 coloured cells](docs/media/bracket-partition.png) | ![The all-hex mesh with O-grids round the holes](docs/media/bracket-hex.png) | ![Von Mises stress peaking at the hole, with the clamp cones and load arrows](docs/media/bracket-stress.png) |
+
+## What it does today
+
+- **Geometry in:** SolidCraft designs (`.solidcraft`) with persistent face, edge and body names,
+  and face-tagged 3MF meshes; surface checks (weld, manifold, orientation, self-intersection).
+- **Meshing:** constrained Delaunay tetrahedra (tet4, tet10) with exact predicates and a
+  certified validity gate; Delaunay refinement, smoothing and sliver removal; structured hex by
+  sweeping, revolving and mapping (hex8, hex20), and conforming multi-block hex across a part
+  split into cells (`mesh.hex.blocks`); unstructured octree all-hex for any part
+  (`mesh.hex.octree`); 2D quad and tri meshes; quality metrics per element and set.
+- **Elements:** solids (tet4, tet10, wedge6, hex8 with incompatible modes, hex20 full and
+  reduced, hybrid u–p for near-incompressible materials), plane stress, plane strain and
+  axisymmetric, trusses, Timoshenko beams, MITC3/MITC4 shells, springs, dashpots and point masses.
+- **Model:** sets bound to geometry names, so they survive remeshing; isotropic and orthotropic
+  elasticity, J2 plasticity (isotropic and kinematic hardening, Johnson–Cook), Johnson–Cook
+  damage, neo-Hookean, Mooney–Rivlin and Yeoh hyperelasticity, thermal properties; fixed, displacement,
+  symmetry and temperature conditions; forces, moments, pressure, gravity, centrifugal and heat
+  loads; reference points with kinematic and distributing couplings; undo, redo and a
+  text-diffable `.fieldcraft` file.
+- **Solvers:** linear static and frequency (supernodal Cholesky, block Lanczos); nonlinear static
+  by Newton–Raphson with automatic increments — large deformation (total Lagrangian) on every
+  solid element, follower pressure, finite- and small-strain plasticity sharing one return map
+  with the explicit solver, rubber and thermal strain, with measured quadratic convergence; steady and
+  transient heat transfer and coupled thermal stress; explicit dynamics with plasticity, damage,
+  erosion and rigid walls; D3Q19 lattice Boltzmann flow with forces on the part's faces. Results
+  never depend on the thread count.
+- **Decks:** Abaqus, Nastran and LS-DYNA writers, each refusing by name what it cannot express.
+- **Results:** contours of stress, strain and displacement with a legend, deformed shapes, mode
+  shapes, explicit and nonlinear frames, probes and reaction sums; supports, loads, reference
+  points and couplings drawn in the viewport.
+- **Verification:** every capability is checked against closed forms and published benchmarks
+  (NAFEMS, MacNeal–Harder, Scordelis–Lo, the elastica, Hill's plastic cylinder, Rivlin's tube) in [`tests/oracle`](tests/oracle), with results frozen
+  so they cannot drift: 170 of 176 quantities pass in 50 cases, the 6 others documented known
+  failures ([docs/oracle.md](docs/oracle.md)).
+- **Driving it:** a desktop app in the Craft family's layout, a CLI, a JSON control channel and an
+  MCP server; every capability is a command ([docs/features.md](docs/features.md)).
+
+![The FieldCraft window: a clamped cantilever with its supports, pressure, gravity and a coupled reference point drawn in the viewport](docs/media/setup-symbols.png)
 
 ## Build
 
 ```sh
 cargo xtask ci                                  # fmt, assets, licences, layers, clippy, tests, wasm
 cargo xtask test --heavy                        # the heavy (ignored) tests and the doc tests
-cargo run -p modelcraft-cli -- commands         # every command and its parameters
-cargo run -p modelcraft-cli -- run script.json  # run a command script
-cargo run -p modelcraft-cli -- mcp              # MCP server on stdio for AI agents (docs/mcp.md)
+cargo run -p fieldcraft-cli -- commands         # every command and its parameters
+cargo run -p fieldcraft-cli -- run script.json  # run a command script
+cargo run -p fieldcraft-cli -- mcp              # MCP server on stdio for AI agents (docs/mcp.md)
 ```
 
 Rust 1.95 or later, with the `wasm32-unknown-unknown` target for `cargo xtask ci`.
@@ -24,9 +101,12 @@ Rust 1.95 or later, with the `wasm32-unknown-unknown` target for `cargo xtask ci
 ## Documentation
 
 - [Architecture](docs/architecture.md): crates, layers and the meshing pipeline
+- [Element library](docs/elements.md) and [verification and validation](docs/verification.md)
+- [Capability checklist](docs/parity.md) and [roadmap](ROADMAP.md)
 - [Libraries and licences](docs/adr/0001-libraries.md)
-- [AI agents (MCP)](docs/mcp.md): `claude mcp add modelcraft -- /path/to/modelcraft-cli mcp`
+- [AI agents (MCP)](docs/mcp.md): `claude mcp add fieldcraft -- /path/to/fieldcraft-cli mcp`
 - [Control protocol](docs/control-protocol.md): driving the desktop app
+- [Releasing](docs/releasing.md): how a release is built, verified and published
 - [Contributing](CONTRIBUTING.md) and [agent instructions](AGENTS.md)
 
 ## License
@@ -34,6 +114,6 @@ Rust 1.95 or later, with the `wasm32-unknown-unknown` target for `cargo xtask ci
 Dual-licensed under [MIT](LICENSE-MIT) or [Apache-2.0](LICENSE-APACHE), at your option. Notices
 are in [NOTICE](NOTICE); third-party licences in [THIRD-PARTY-LICENSES.txt](THIRD-PARTY-LICENSES.txt).
 
-ModelCraft is an independent project, not affiliated with, sponsored or endorsed by Dassault
+FieldCraft is an independent project, not affiliated with, sponsored or endorsed by Dassault
 Systèmes, MSC Software, Siemens or Ansys. Abaqus, Nastran, MSC Nastran, Simcenter Nastran and
 LS-DYNA are trademarks of their owners and are named only to describe file compatibility.

ROADMAP.md

@@ -1,6 +1,6 @@
 # Roadmap
 
-ModelCraft's goal is CAE modeling on par with Abaqus/CAE, Nastran pre-processors and LS-PrePost,
+FieldCraft's goal is CAE modeling on par with Abaqus/CAE, Nastran pre-processors and LS-PrePost,
 with hexahedral meshing as the centre of gravity, plus its own linear solver. Abaqus/CAE is the
 reference for scope (its documentation is excellent and its solver strong); its application is
 where we aim to be clearly better: parametric geometry from SolidCraft, sets that survive
@@ -16,22 +16,73 @@ pipeline that already produces solvable, verified models. Then hex: structured (
 with partitions proposed automatically) before octree all-hex, because that is how analysts get
 hex meshes today and it gives the best elements where stresses are read.
 
+Revised 2026-10-14 after a gap review (below): the implicit side is linear today, and nearly
+everything analysts ask for next — contact and friction, elastomers, viscoelasticity, creep,
+adhesion, composite failure, tissues — needs a nonlinear implicit solver first. The nonlinear
+core (M15) therefore comes right after automatic hex (M6) and before contact (M7). Every material
+model is written once in `fieldcraft-fem` with its consistent tangent and serves the implicit and
+explicit solvers alike; every coupled field (temperature, pressure, electric potential, pore
+pressure) is a degree of freedom of the existing DOF framework, not a separate solver.
+
 | Milestone | Scope | Status |
 |---|---|---|
 | M0 Foundation | Workspace, quality gates, FE model, command engine with rollback and panic guard, CLI, geometry boundary on SolidCraft | done |
-| M1 Geometry in and surface preparation | Open `.solidcraft` designs with persistent face names, assemblies placed (done); face-tagged 3MF (done); test corpus, `cargo xtask corpus` (done); exact predicates (done); quality metrics and certified validity gate (done); weld, closed/manifold/orientation and self-intersection checks, feature edges (`modelcraft-mesh::surface`, `mesh.surface.check`, done) | in progress |
-| M2 Tet meshing and size field | Size field (global, per face and edge seeds, curvature and proximity; the `modelcraft_mesh::size::SizeField` trait and edge-division helpers are in); Bowyer–Watson Delaunay (exact, symbolic perturbation, verified; `modelcraft-mesh::delaunay`, done); robust CDT boundary recovery (Diazzi et al. 2023: implicit LNC Steiner points on segments, gift-wrapping facet recovery, inside/outside labelling, B-rep face tags on boundary tet faces, few-ulp rounding repair checked by the validity gate; `modelcraft-mesh::cdt` and `mesh.tet.generate`, done: all 20 valid corpus parts); Delaunay refinement, ODT smoothing, sliver removal; tet4 and tet10 with mid-side nodes on the B-rep; mesh verify per set | in progress |
-| M3 First deck | Sets and surfaces bound to SolidCraft face, edge, vertex and body names, resolved after meshing; materials (isotropic and orthotropic elastic, density) with a unit-system label and consistency check; sections (solid, shell, beam profiles) assigned by set; element formulation per region mapped to each solver; BCs (fixed, displacement, symmetry); loads (force and moment on reference points, pressure, gravity); reference points with kinematic and distributing coupling; steps (linear static, frequency) with explicit per-step load and BC tables and output presets; `model.check` naming every missing or bad item; `model.*` and `mesh.tag` commands (model definition: done); writers for Abaqus input (done: `deck.write`), Nastran SOL 101/103 (done: `deck.write`) and LS-DYNA implicit (done); the `.modelcraft` file (text definition, binary mesh, geometry references reopened on load, journal; atomic saves, autosave and recovery; undo/redo on the journal: done) | in progress |
-| M4 Own solver and first results | Element library per docs/elements.md (1D and 2D first); Linear static and modal solver (tet4/10, wedge6, hex8, hex20; sparse direct, Lanczos), verified against analytic solutions (solver: done — `modelcraft-fem` kernels, `modelcraft-solver` with nested dissection, sparse Cholesky and block Lanczos, `solve.static`/`solve.frequency`/`solve.probe`, patch, cantilever, Lamé, Kirsch and beam-frequency tests; reference points with kinematic and distributing couplings and moments by master–slave constraint elimination, verified by rigid motion, clamping, Saint-Venant tension, bending and tube torsion; 1D elements I: rod2/rod3 trusses, point masses, rotary inertia, springs and dashpots in both solvers and all three decks, verified by the method of joints, the three-bar truss, spring–mass, two-mass chain and torsional pendulum frequencies, and damped decay; 2D elements: plane stress, plane strain and axisymmetric tri3, tri6, quad4 (incompatible modes QM6), quad8 with two degrees of freedom per node, centrifugal loads, `mesh.planar` 2D meshes of polygons and planar faces, verified by patch tests, Kirsch, Lamé (plane strain and axisymmetric), rotating discs and cylinders, and a plane stress cantilever; deck mapping to Abaqus CPS/CPE/CAX, Nastran membranes, LS-DYNA ELFORM 12/13); shells and beams (done: quad4 MITC4 and tri3 MITC3 flat shells with a Hughes–Brezzi drilling rotation, two-node Timoshenko beams with profile properties and orientations, six degrees of freedom at shell and beam nodes shared with solids and trusses, section forces and surface stresses, verified by shell patch tests, Navier's plate, cantilever and portal-frame beams, and the Scordelis–Lo and pinched-cylinder benchmarks); results display (done: `results.*` commands, deformed shape to scale, banded contours of displacement, von Mises, principal and component stresses with a legend, mode shapes with their frequencies and animation, probing a node by clicking it, reaction force and moment sums per set, stale results marked after an edit; explicit steps: field frames by slider or animation with contours per frame, energy histories plotted) | started |
-| M5 Structured hex | 2D quad meshing of faces (`modelcraft-mesh::quad`: transfinite mapped meshes, free all-quad meshes of polygons with holes on prescribed boundary nodes, exact planar quad validity, shared `SizeField` and even edge divisions; done for planar faces); mapped hex of six-sided regions; sweep meshing; conforming interfaces and tet–hex transition; automatic decomposition into sweepable and mappable regions, proposed as SolidCraft splits | started |
-| M6 Automatic hex | Octree/grid-dual all-hex for any part; hex-dominant by tet recombination; polycube for blocky parts; smoothing, untangling, boundary padding, layers through thin walls; mesh editing and orphan-mesh import | planned |
-| M7 Assemblies and contact | Part instances from SolidCraft occurrences; tie between non-matching meshes; general and pairwise contact with automatic pair detection, friction; bolt pretension, connectors; amplitudes, multiple steps; nonlinear static steps in decks | planned |
+| M1 Geometry in and surface preparation | Open `.solidcraft` designs with persistent face names, assemblies placed (done); face-tagged 3MF (done); test corpus, `cargo xtask corpus` (done); exact predicates (done); quality metrics and certified validity gate (done); weld, closed/manifold/orientation and self-intersection checks, feature edges (`fieldcraft-mesh::surface`, `mesh.surface.check`, done) | in progress |
+| M2 Tet meshing and size field | Size field (global, per face and edge seeds, curvature and proximity; the `fieldcraft_mesh::size::SizeField` trait and edge-division helpers are in); Bowyer–Watson Delaunay (exact, symbolic perturbation, verified; `fieldcraft-mesh::delaunay`, done); robust CDT boundary recovery (Diazzi et al. 2023: implicit LNC Steiner points on segments, gift-wrapping facet recovery, inside/outside labelling, B-rep face tags on boundary tet faces, flip repair of rounding (§5.1) checked by the validity gate; `fieldcraft-mesh::cdt` and `mesh.tet.generate`, done: all 20 valid corpus parts); quality stage (done: `fieldcraft-mesh::tet` — curvature-graded size field, edge-collapse coarsening, constrained Delaunay refinement with boundary points on the B-rep faces and curves, ODT smoothing, Klingner–Shewchuk improvement, tet4 and tet10 with mid-side nodes on the B-rep, quality report; one validity criterion shared by the gate and both solvers; the filleted-bracket fillet stress converges, tests/oracle); mesh verify per set | in progress |
+| M3 First deck | Sets and surfaces bound to SolidCraft face, edge, vertex and body names, resolved after meshing; materials (isotropic and orthotropic elastic, density) with a unit-system label and consistency check; sections (solid, shell, beam profiles) assigned by set; element formulation per region mapped to each solver; BCs (fixed, displacement, symmetry); loads (force and moment on reference points, pressure, gravity); reference points with kinematic and distributing coupling; steps (linear static, frequency) with explicit per-step load and BC tables and output presets; `model.check` naming every missing or bad item; `model.*` and `mesh.tag` commands (model definition: done); writers for Abaqus input (done: `deck.write`), Nastran SOL 101/103 (done: `deck.write`) and LS-DYNA implicit (done); the `.fieldcraft` file (text definition, binary mesh, geometry references reopened on load, journal; atomic saves, autosave and recovery; undo/redo on the journal: done) | in progress |
+| M4 Own solver and first results | Element library per docs/elements.md (1D and 2D first); Linear static and modal solver (tet4/10, wedge6, hex8, hex20; sparse direct, Lanczos), verified against analytic solutions (solver: done — `fieldcraft-fem` kernels, `fieldcraft-solver` with nested dissection, sparse Cholesky and block Lanczos, `solve.static`/`solve.frequency`/`solve.probe`, patch, cantilever, Lamé, Kirsch and beam-frequency tests; reference points with kinematic and distributing couplings and moments by master–slave constraint elimination, verified by rigid motion, clamping, Saint-Venant tension, bending and tube torsion; 1D elements I: rod2/rod3 trusses, point masses, rotary inertia, springs and dashpots in both solvers and all three decks, verified by the method of joints, the three-bar truss, spring–mass, two-mass chain and torsional pendulum frequencies, and damped decay; 2D elements: plane stress, plane strain and axisymmetric tri3, tri6, quad4 (incompatible modes QM6), quad8 with two degrees of freedom per node, centrifugal loads, `mesh.planar` 2D meshes of polygons and planar faces, verified by patch tests, Kirsch, Lamé (plane strain and axisymmetric), rotating discs and cylinders, and a plane stress cantilever; deck mapping to Abaqus CPS/CPE/CAX, Nastran membranes, LS-DYNA ELFORM 12/13); shells and beams (done: quad4 MITC4 and tri3 MITC3 flat shells with a Hughes–Brezzi drilling rotation, two-node Timoshenko beams with profile properties and orientations, six degrees of freedom at shell and beam nodes shared with solids and trusses, section forces and surface stresses, verified by shell patch tests, Navier's plate, cantilever and portal-frame beams, and the Scordelis–Lo and pinched-cylinder benchmarks); results display (done: `results.*` commands, deformed shape to scale, banded contours of displacement, von Mises, principal and component stresses with a legend, mode shapes with their frequencies and animation, probing a node by clicking it, reaction force and moment sums per set, stale results marked after an edit; explicit steps: field frames by slider or animation with contours per frame, energy histories plotted) | started |
+| M5 Structured hex | 2D quad meshing of faces (`fieldcraft-mesh::quad`: transfinite mapped meshes, free all-quad meshes of polygons with holes on prescribed boundary nodes, exact planar quad validity, shared `SizeField` and even edge divisions; done for planar faces); mapped hex of six-sided regions (trivariate TFI, curved faces) and sweep meshing (multi-level extrusions with imprinted cross-sections, revolutions, one-to-one sweeps through linking faces; interval assignment, hex8/hex20 on the geometry, B-rep face tags, `mesh.hex.generate`/`sweep`/`mapped`: done, 16 of 21 corpus parts all-hex); conforming interfaces between cells (done: `mesh.hex.blocks` meshes a part split with SolidCraft's Split Body into mapped blocks as one conforming mesh — composite faces for seams and tangent faces, interval assignment over all cells, shared faces meshed once, grading off holes and fillets, free-internal-face check; the filleted bracket in 30 cells, hex20 within 0.1 % of a fine tet10 tip deflection); sweepable cells in a conforming mesh and tet–hex transition; automatic decomposition into sweepable and mappable regions, proposed as SolidCraft splits | started |
+| M6 Automatic hex | Octree/grid all-hex for any part (first version: done — `fieldcraft-mesh::octree`, `mesh.hex.octree`: 3-refinement grid with conforming templates refined by curvature, thickness and narrow faces, a core cleared to a manifold boundary, feature map onto it, padding and a pillow per patch capturing every sharp curve, foldover-free fitting, certified validity, B-rep face tags; the corpus hex column and the filleted-bracket oracle case; next: transitions for concave refined regions so thin and curved parts stop over-refining); hex-dominant by tet recombination; polycube for blocky parts; layers through thin walls; mesh editing and orphan-mesh import | started |
+| M7 Assemblies, contact and friction | Needs M15. Part instances from SolidCraft occurrences; tie between non-matching meshes (mortar); implicit contact: surface-to-surface mortar and node-to-surface, penalty and augmented Lagrange, self-contact, automatic pair detection with a bounding-volume search shared with explicit contact; friction: Coulomb with stick–slip, static/kinetic, anisotropic, pressure-, rate- and temperature-dependent coefficients; contact output (pressure, slip, status); thermal contact conductance and frictional heating; wear (Archard); bolt pretension, connectors with behaviour (elastic, damped, stops, locks); amplitudes, multiple steps, restart; nonlinear steps in all three decks. Verified by Hertz (sphere and cylinder), the Cattaneo–Mindlin partial-slip problem, the sliding block, NAFEMS contact benchmarks | planned |
 | M8 Materials, explicit, shells, composites | Plasticity, hyperelasticity, damage data per solver; explicit dynamics decks (Abaqus/Explicit, LS-DYNA); midsurface shells; composite layups and material orientations, continuum shells on swept hex; hybrid (mixed u–p) hex8/hex20/tet10 for nearly incompressible materials (done); heat transfer (solids done: steady and θ-method transient conduction with flux, convection and sources, thermal strain in static steps (solids and 2D) and explicit dynamics (with plasticity), coupled temperature–displacement, `solve.heat`; deck output, 2D/shell/beam conduction planned) | started |
 | M9 Post-processing and deck readers | Results readers for public formats (Nastran OP2, LS-DYNA d3plot, Abaqus `.fil`); XY and path plots, cuts, display groups, free-body forces; deck readers that keep unknown keywords; mesh convergence studies | planned |
-| M10 Explicit dynamics | Shared element and material kernels with the implicit solver (`fem`); central-difference solver with lumped mass, stable time step, one-point hex8 with hourglass control and nodal-pressure tet4, bulk viscosity, energy accounting (X1 core: done — `modelcraft-explicit`, `explicit_dynamic` steps with initial velocities, prescribed motion and planar rigid walls, `solve.explicit`/`solve.history`, small-strain linear elastic; bar wave, rigid-wall impact, energy balance and cantilever-period tests); large-deformation materials (X2: done — updated Lagrangian elements, Jaumann/Hughes–Winget and Green–Naghdi/Flanagan–Taylor rates, J2 bilinear/table plasticity, Johnson–Cook strength with heating and damage, erosion; materials gain `plastic`, `damage`, `erosion` with `model.material.plasticity`/`damage`; Dienes shear, rigid rotation, J2 uniaxial and Taylor-bar tests); contact (global search, penalty with friction, rigid walls); runs on hex and tet meshes | started |
+| M10 Explicit dynamics | Shared element and material kernels with the implicit solver (`fem`); central-difference solver with lumped mass, stable time step, one-point hex8 with hourglass control and nodal-pressure tet4, bulk viscosity, energy accounting (X1 core: done — `fieldcraft-explicit`, `explicit_dynamic` steps with initial velocities, prescribed motion and planar rigid walls, `solve.explicit`/`solve.history`, small-strain linear elastic; bar wave, rigid-wall impact, energy balance and cantilever-period tests); large-deformation materials (X2: done — updated Lagrangian elements, Jaumann/Hughes–Winget and Green–Naghdi/Flanagan–Taylor rates, J2 bilinear/table plasticity, Johnson–Cook strength with heating and damage, erosion; materials gain `plastic`, `damage`, `erosion` with `model.material.plasticity`/`damage`; Dienes shear, rigid rotation, J2 uniaxial and Taylor-bar tests); contact (global search, penalty with friction, rigid walls); runs on hex and tet meshes | started |
 | M11 Equations of state and shells | Polynomial, ideal-gas, Mie–Grüneisen, JWL with programmed burn, tabulated; energy coupling; shock verification (Rankine–Hugoniot, Sod, Noh, Sedov); Belytschko–Lin–Tsay shells with self-contact on quad meshes | planned |
-| M12 CFD: lattice Boltzmann | D3Q19/D3Q27 on grids voxelised from the face-tagged surface; TRT, regularised and cumulant collision; interpolated walls, inlets and outlets; LES; octree refinement shared with the hex mesher; wgpu backend (deterministic per device, checked against the CPU) (CPU core: done — `modelcraft-lbm` with D3Q19 TRT and Guo forcing, halfway bounce-back and moving walls, slip and periodic faces, Zou–He velocity and pressure faces, exact voxelisation of obstacle bodies, momentum-exchange forces per face; fluid materials, fluid domains and fluid steps in the model; `model.fluid_domain.*`, `solve.fluid`; verified by Poiseuille channel and pipe, Couette, Taylor–Green decay, sphere-array Stokes drag and mass conservation; Schäfer–Turek 2D-1 as a benchmark) | started |
+| M12 CFD: lattice Boltzmann | D3Q19/D3Q27 on grids voxelised from the face-tagged surface; TRT, regularised and cumulant collision; interpolated walls, inlets and outlets; LES (Smagorinsky, WALE) with wall models; thermal LBM and conjugate heat transfer with the structure's thermal solver; non-Newtonian viscosity (power-law, Carreau–Yasuda, Cross, Herschel–Bulkley, Bingham) and temperature-dependent viscosity; porous media (Brinkman, Darcy–Forchheimer); multiphase and free surface (M13); validation by the lid-driven cavity, backward-facing step, cylinder wake (Strouhal) and turbulent channel; octree refinement shared with the hex mesher; wgpu backend (deterministic per device, checked against the CPU) (CPU core: done — `fieldcraft-lbm` with D3Q19 TRT and Guo forcing, halfway bounce-back and moving walls, slip and periodic faces, Zou–He velocity and pressure faces, exact voxelisation of obstacle bodies, momentum-exchange forces per face; fluid materials, fluid domains and fluid steps in the model; `model.fluid_domain.*`, `solve.fluid`; verified by Poiseuille channel and pipe, Couette, Taylor–Green decay, sphere-array Stokes drag and mass conservation; Schäfer–Turek 2D-1 as a benchmark) | started |
 | M13 Fluid–structure interaction | Immersed-boundary coupling of the lattice Boltzmann fluid with the explicit or implicit structure; interface force transfer; sub-cycling; Aitken then interface quasi-Newton coupling; free-surface flow | planned |
 | M14 Blast and impact fluids | EOS-driven fluids in the explicit solver: ALE multi-material or SPH, with fluid–structure contact | planned |
+| M15 Nonlinear implicit core | Newton–Raphson with line search, automatic increments and cutbacks, convergence on force, displacement and energy; geometric nonlinearity (total and updated Lagrangian, large rotations for shells and beams, follower pressure); every `fem` material behind one interface with its consistent tangent (plasticity, damage and thermal strain from the explicit solver reused implicitly); arc-length (Riks) for snap-through; linear buckling (eigen) with preload stress stiffening, and imperfections from buckling modes; nonlinear stabilisation; restart. Verified by the elastica, Lee's frame, the snap-through arch, the hinged cylindrical shell and plastic collapse loads (solids core: done — `nonlinear_static` steps with automatic increments and cutbacks, Newton–Raphson with the consistent tangent, force, displacement and energy convergence and an optional line search; a material point interface (Kirchhoff stress and spatial tangent from F, with history) with St Venant–Kirchhoff and compressible neo-Hookean; total Lagrangian tet4, tet10, wedge6, hex8, hex20 (full and reduced), hybrid hex8/hex20/tet10 by the three-field mixed form, plane strain and axisymmetric elements; follower pressure with its symmetrised load stiffness; Cauchy stress and logarithmic strain, increment history and frames, `solve.nonlinear`; Abaqus and LS-DYNA decks; verified by the patch and objectivity tests, uniaxial stretch, the elastica and tube inflation by a follower pressure (finite-strain Cook's membrane pending its transcribed reference; J2 plasticity on the interface: Simo's exponential return map at finite strain and the radial return at small strain, both with consistent tangents and the return shared with explicit dynamics, bilinear isotropic and kinematic (small strain), tabulated and Johnson–Cook (rate-independent) hardening, hybrid elements included, load paths for cyclic loading, a tangent predictor for path-dependent materials, verified by uniaxial tension to large strain, Hill's thick cylinder (plastic zone and collapse pressure), a cantilever's collapse and the Bauschinger effect, with quadratic Newton convergence; Mooney–Rivlin and Yeoh options (decoupled, hybrid elements), verified in Treloar's three modes and by a stretched tube's inflation; thermal strain by the multiplicative split at finite strain and the additive one at small strain, with temperatures from temperature loads or the step's own conduction, verified by free and constrained expansion and a heated bar held past yield. Next: incompatible modes (EAS), kinematic hardening at finite strain, shells and beams, linear buckling, arc-length with an indefinite factorization) | started |
+| M16 Structural dynamics | Implicit transient (Newmark, HHT-α, generalised-α); modal superposition transient; steady-state harmonic (direct and modal), with Rayleigh, modal, structural and material damping; random vibration from PSDs and response spectrum (SRSS, CQC); complex eigenvalues with damping; rotating machinery (Campbell diagrams, gyroscopic terms); substructures (Craig–Bampton) | planned |
+| M17 Constitutive library and material library | Elastic: transversely isotropic, fully anisotropic (21 constants), temperature-dependent. Elastomers: hyperelastic neo-Hookean, Mooney–Rivlin, Yeoh (these three done, in nonlinear steps), Ogden, Arruda–Boyce, Gent, Marlow, with Mullins softening and finite-strain viscoelasticity (Prony series; parallel networks after Bergström–Boyce), foams. Viscoelasticity: small- and finite-strain Prony series, time–temperature superposition (WLF, Arrhenius), storage and loss moduli for harmonic steps. Viscoplasticity and creep: Norton power law, time and strain hardening, Perzyna, Anand, Chaboche combined hardening. Plasticity: Hill anisotropic, Drucker–Prager, Mohr–Coulomb, Cam-clay, crushable foam, concrete damaged plasticity, Gurson. Fluids: Newtonian and non-Newtonian viscosity shared with M12. Material library: curated, cited data sets (steels, aluminium and titanium alloys, polymers, elastomers, composites, tissues) with units and temperature dependence; calibration from test data (uniaxial, biaxial, shear, relaxation, DMA) by least squares with Drucker stability checks; user materials as a safe Rust trait | planned |
+| M18 Composites and anisotropy | Material orientations (rectangular, cylindrical, spherical, from geometry edges and faces, per-element fields, draping of fibres over curved parts); layups on shells and continuum shells, ply stacks on swept hex; classical lamination theory checks; ply stresses and strains through the thickness; failure indices (Tsai–Wu, Tsai–Hill, Hashin, Puck, LaRC) and progressive damage; homogenisation (rule of mixtures, Mori–Tanaka, RVEs with periodic boundary conditions); delamination through M20's cohesive zones. Verified by laminate closed forms and the NAFEMS composite benchmarks | planned |
+| M19 Coupled fields | On the DOF framework, each a degree of freedom beside the displacements: piezoelectricity (electric potential, d/e coupling and permittivity matrices, voltage and charge conditions, resonance and impedance through M16 harmonic steps); poroelasticity (Biot, u–p, Darcy flow, consolidation; Terzaghi and Mandel verification; soils and biphasic tissue); electro-thermal (Joule heating) and thermo-electro-mechanical coupling; acoustics (Helmholtz elements, structure–acoustic coupling, absorbing boundaries); low-frequency electromagnetics later | planned |
+| M20 Damage, fracture, fatigue and adhesion | Continuum damage beyond Johnson–Cook (Lemaitre, ductile and shear criteria) for implicit and explicit; fracture mechanics (J-integral and stress intensity factors, crack-front meshes from the hex mesher; XFEM later); fatigue (S–N and ε–N with mean-stress corrections, rainflow counting, Paris crack growth); adhesion and debonding by cohesive zones (bilinear and exponential traction–separation, mixed mode with Benzeggagh–Kenane) as cohesive elements and cohesive contact; adhesive joints. Verified by DCB, ENF and MMB delamination tests and published fatigue data | planned |
+| M21 Biomechanics and biomaterials | Soft tissue: Holzapfel–Gasser–Ogden fibre-reinforced hyperelasticity with dispersion, Fung, transversely isotropic models; biphasic and poro-hyperelastic cartilage (M19); active muscle (Hill-type); hydrogel swelling. Bone: density-dependent moduli from CT data, strain-energy-density remodelling (Huiskes, Beaupré). Growth and remodelling by kinematic growth (F = Fe·Fg). Implants and biomaterials (titanium, PEEK, UHMWPE) from the M17 library. Verified against published experiments with their tolerances | planned |
+| M22 Design studies | Parameters of the SolidCraft design driven from FieldCraft: parametric sweeps, design of experiments, response surfaces and sensitivities; topology optimisation (SIMP with filters, manufacturing constraints); size and shape optimisation; submodelling (driven boundaries from a global model); uncertainty quantification | planned |
+| M23 Wave propagation and ultrasound | Elastic, acoustic and coupled waves from the explicit solver's 1D bar today to guided and ultrasonic waves, by two methods. Finite differences first, for fast 2D (then 3D) ultrasound on regular grids: staggered-grid velocity–stress FDTD (Virieux) and the elastodynamic finite integration technique for solids, the rotated staggered grid for anisotropic media, a k-space pseudospectral scheme for weakly heterogeneous tissue and water, all on grids voxelised from the face-tagged geometry by the LBM's exact voxeliser, with heterogeneous, layered and fluid–solid media, CPML boundaries, threads and the GPU backend; staircased curved boundaries scatter spuriously, so the FD grid is checked against the finite elements on curved parts. Finite elements for curved geometry and coupling with structures: spectral elements (high-order Gauss–Lobatto–Legendre hexes with diagonal mass) on the hex meshes, and a mesh check in elements per wavelength with the dispersion error it implies; absorbing boundaries (convolutional PML, absorbing layers with increasing damping) and infinite media; tone-burst sources (Hann-windowed cycles), point, line and surface excitation, and piezoelectric transducers (M19); anisotropic media (composites, crystals) and viscoelastic, power-law-in-frequency attenuation; fluid–solid interfaces and fluid-loaded plates; ultrasound in water and tissue, nonlinear acoustics (Westervelt, KZK) for focused ultrasound. Guided waves: dispersion curves by semi-analytical finite elements (SAFE) for plates, pipes, rails and layered and anisotropic laminates — Lamb, Rayleigh, Love and SH modes — with phase and group velocities and mode shapes; mode-selective excitation. Output: A-scans and B-scans at sensors, wavefield snapshots, 2D FFT (frequency–wavenumber) for mode identification, and time–frequency diagrams of any signal — short-time Fourier spectrograms, continuous wavelet transforms (Morlet), reassigned spectrograms and smoothed pseudo Wigner–Ville — with the SAFE or Rayleigh–Lamb group-velocity curves overlaid as arrival times, and group velocities extracted from the ridges. GPU paths (M12's backend) for long runs. Verified by Lamb's problem (point load on a half-space), Rayleigh-wave speed, Rayleigh–Lamb dispersion, Love waves in a layer over a half-space, reflection and transmission at interfaces, and published guided-wave measurements | planned |
 | Continuous: verification and validation | Every capability checked against theory (closed forms), experiments (published measurements) and published benchmarks (NAFEMS, vendor benchmark and verification manuals such as Abaqus's), each case our own model in `tests/oracle/` with its cited reference and tolerance; `cargo xtask oracle` runs them and writes docs/oracle.md; once a case matches, our result is frozen as a fixture so fidelity cannot regress (docs/verification.md). Runner, fixtures and CI job: done; 26 theory cases (patch tests of every solid element, cantilevers, Lamé in 3D, plane strain and axisymmetric, Kirsch in 3D and plane stress, rotating disc and cylinder, beam frequencies, couplings, explicit waves, impact and J2 plasticity, CDT invariants), 9 published benchmarks (MacNeal–Harder solid tests, Scordelis–Lo with solids, NAFEMS LE1 in 3D and 2D, LE10, FV32) and 9 pending cases with citations (shells, thermal, static plasticity, Taylor bar, CFD); `mesh.block` mapped blocks and 2D patches build their meshes | started |
-| Continuous: desktop and agents | Desktop app (viewport, model tree, commands, control channel, the open design drawn, `ui.capture` of the whole window offscreen: done; toolbar of every capability from the catalogue, ready or coming soon with its milestone, icons drawn with VectorCraft, docs/features.md: done; the Craft-family shell — title bar, workspaces and ribbon drop-downs, browser, context panel, command search, journal timeline, light and dark themes — native file pickers with background opening, drag and drop and recent files, samples and one-click Solve: done; MCP server over stdio, headless or bridged to the app, with read and write roots, docs/mcp.md: done), browser build, command schema as the public API | started |
+| Continuous: performance | CPU first, deterministic: results never depend on the thread count (fixed partitions, sums in a fixed order; checked by hashing results on 1, 2 and 7 threads). Supernodal left-looking Cholesky (11–15× faster than the column solver on one thread), parallel element matrices, stresses and Lanczos products, explicit element updates and LBM cell blocks on rayon threads (done — `fieldcraft-parallel`, `threads` on the solve commands, `FIELDCRAFT_THREADS`); parallel forward/back substitution and explicit tet4 assembly; GPU paths later, within a stated tolerance of the CPU | started |
+| Continuous: desktop and agents | Desktop app (viewport, model tree, commands, control channel, the open design drawn, `ui.capture` of the whole window offscreen: done; toolbar of every capability from the catalogue, ready or coming soon with its milestone, icons drawn with VectorCraft, docs/features.md: done; the Craft-family shell — title bar, workspaces and ribbon drop-downs, browser, context panel, command search, journal timeline, light and dark themes — native file pickers with background opening, drag and drop and recent files, samples and one-click Solve: done; MCP server over stdio, headless or bridged to the app, with read and write roots, docs/mcp.md: done; caps labels in Inter SemiBold; the README's analysis video recorded through MCP by `tools/demo-video`: done; support, load, reference-point and coupling symbols in the viewport and headless renders, with their browser toggles: done; selection by picking in the viewport — geometry faces, edges, vertices and bodies, mesh nodes, element faces and elements, box selection, hover, a Target row in command forms, `ui.select`/`ui.selection` and MCP `select`: done; a camera parameter for screenshots, a ribbon that follows the command being run: in progress; the browser build — the same app in a web page with browser file pickers, downloads, drops and autosave to browser storage, deployed to GitHub Pages from each release, docs/web.md: done), command schema as the public API | started |
+
+## Next
+
+In progress, in this order of landing:
+
+1. Tet quality: sliver repair and Delaunay refinement to a size field, so curved and filleted parts
+   (the filleted bracket) solve on tets (M2).
+2. Octree all-hex (M6): concave transitions (Schneiders' modified templates or Livesu's dual schemes) so curved and thin-walled parts mesh without filling their hull with fine cells.
+3. The analysis video regenerated with the setup's symbols (done: support, load, reference-point
+   and coupling symbols in the viewport and headless renders), captions and an orbit (screenshot
+   camera and the ribbon following the command: done).
+4. A Scordelis–Lo refinement study (32×32×2, 64×64×4, hex20 full and reduced) separating
+   discretisation error from the solid-versus-shell model difference (−0.33 % today).
+5. The nonlinear implicit core (M15), the gate for contact (M7), elastomers and viscoelasticity
+   (M17), composite failure (M18), adhesion (M20) and tissues (M21): solids, hyperelasticity and
+   follower pressure done; J2 plasticity and Mooney–Rivlin on the material point interface next.
+
+## Gap review (2026-10-14)
+
+What exists and what is missing, by area; each gap is in a milestone above.
+
+| Area | Today | Missing |
+|---|---|---|
+| Solution procedures | Linear static, nonlinear static (solids with geometric and material nonlinearity: hyperelasticity, J2 plasticity), frequency (Lanczos), steady and transient heat, coupled temperature–displacement, explicit dynamics, LBM flow | Nonlinear shells and beams, arc-length, buckling (M15); implicit, harmonic, random and spectrum dynamics (M16) |
+| Contact, friction, adhesion | Explicit planar rigid walls (frictionless); couplings, springs, dashpots | Implicit and explicit deformable contact, tie, friction laws, thermal contact, wear (M7); cohesive adhesion and debonding (M20) |
+| Materials | Isotropic and orthotropic elasticity, density, thermal, J2 plasticity (bilinear, table, Johnson–Cook), Johnson–Cook damage and erosion, compressible neo-Hookean, Mooney–Rivlin and Yeoh hyperelasticity, Newtonian fluids | Elastomers beyond Yeoh (Ogden, Arruda–Boyce and the rest), viscoelasticity, viscoplasticity and creep, anisotropic and pressure-dependent plasticity, non-Newtonian viscosity, a cited material library and calibration (M17) |
+| Composites and anisotropy | Orthotropic constants | Orientations, layups, ply results, failure criteria, homogenisation (M18) |
+| Coupled fields | Thermal–structural (one way and coupled) | Piezoelectric, poroelastic, electro-thermal, acoustics (M19) |
+| Failure | Johnson–Cook damage and element erosion (explicit) | Fracture mechanics, fatigue, cohesive zones, composite progressive damage (M18, M20) |
+| Biomechanics | — | Tissue models, cartilage, muscle, bone remodelling, growth (M21) |
+| Fluid dynamics | LBM D3Q19 TRT, walls, inlets/outlets, obstacle forces | Turbulence with wall models, thermal and conjugate heat transfer, non-Newtonian, porous media, multiphase, GPU (M12, M13) |
+| Wave propagation | One-dimensional elastic waves and impact in the explicit solver (bar cases in the oracle) | A 2D/3D finite-difference ultrasound solver (velocity–stress FDTD, EFIT, k-space pseudospectral) on voxelised geometry, time–frequency diagrams (spectrogram, wavelet, Wigner–Ville) with dispersion overlays, spectral elements, absorbing boundaries, tone-burst and transducer sources, attenuation, Lamb/Rayleigh/Love guided waves and SAFE dispersion curves, ultrasound in fluids and tissue, nonlinear acoustics, A/B-scans and frequency–wavenumber analysis (M23) |
+| Design | — | Parametric studies on SolidCraft parameters, optimisation, submodelling (M22) |

SECURITY.md

@@ -1,9 +1,9 @@
 # Security policy
 
-ModelCraft is young; only `main` and the latest release get fixes.
+FieldCraft is young; only `main` and the latest release get fixes.
 
 Please **don't open a public issue** for a security problem. Report it privately through the
-repository's [Security tab](https://github.com/jyviko/modelcraft/security/advisories/new) with
+repository's [Security tab](https://github.com/jyviko/fieldcraft/security/advisories/new) with
 what you found, how to reproduce it (a model, deck or script), the version and platform, and the
 impact you expect.
 

THIRD-PARTY-LICENSES.txt

@@ -1,8 +1,8 @@
-Third-party software in ModelCraft
+Third-party software in FieldCraft
 
-ModelCraft (the desktop app, modelcraft-cli and the web app) is built from the 444 crates below.
+FieldCraft (the desktop app, fieldcraft-cli and the web app) is built from the 452 crates below.
 Generated by `cargo xtask licences` from Cargo.lock and the crates' own licence files.
-ModelCraft's own licence is in LICENSE-MIT and LICENSE-APACHE, and NOTICE.
+FieldCraft's own licence is in LICENSE-MIT and LICENSE-APACHE, and NOTICE.
 
 accesskit 0.24.1  (MIT OR Apache-2.0)
 accesskit_atspi_common 0.18.1  (MIT OR Apache-2.0)
@@ -41,11 +41,13 @@ atomic-waker 1.1.2  (Apache-2.0 OR MIT)
 atspi 0.29.0  (Apache-2.0 OR MIT)
 atspi-common 0.13.0  (Apache-2.0 OR MIT)
 atspi-proxies 0.13.0  (Apache-2.0 OR MIT)
+base64 0.22.1  (MIT OR Apache-2.0)
 bit-set 0.10.0  (Apache-2.0 OR MIT)
 bit-vec 0.9.1  (Apache-2.0 OR MIT)
 bitflags 1.3.2  (MIT/Apache-2.0)
 bitflags 2.13.2  (MIT OR Apache-2.0)
 block-buffer 0.10.4  (MIT OR Apache-2.0)
+block-buffer 0.12.1  (MIT OR Apache-2.0)
 block2 0.5.1  (MIT)
 block2 0.6.2  (MIT)
 blocking 1.7.0  (Apache-2.0 OR MIT)
@@ -68,12 +70,14 @@ codespan-reporting 0.13.1  (Apache-2.0)
 color 0.3.3  (Apache-2.0 OR MIT)
 combine 4.6.8  (MIT)
 concurrent-queue 2.5.0  (Apache-2.0 OR MIT)
+const-oid 0.10.2  (Apache-2.0 OR MIT)
 convert_case 0.4.0  (MIT)
 core-foundation 0.9.4  (MIT OR Apache-2.0)
 core-foundation-sys 0.8.7  (MIT OR Apache-2.0)
 core-graphics 0.23.2  (MIT OR Apache-2.0)
 core-graphics-types 0.1.3  (MIT OR Apache-2.0)
 cpufeatures 0.2.17  (MIT OR Apache-2.0)
+cpufeatures 0.3.1  (MIT OR Apache-2.0)
 craft-ui 0.1.0  (MIT OR Apache-2.0)
 crc32fast 1.5.2  (MIT OR Apache-2.0)
 crossbeam-deque 0.8.8  (MIT OR Apache-2.0)
@@ -81,11 +85,13 @@ crossbeam-epoch 0.9.21  (MIT OR Apache-2.0)
 crossbeam-utils 0.8.23  (MIT OR Apache-2.0)
 crunchy 0.2.4  (MIT)
 crypto-common 0.1.7  (MIT OR Apache-2.0)
+crypto-common 0.2.2  (MIT OR Apache-2.0)
 cursor-icon 1.2.0  (MIT OR Apache-2.0 OR Zlib)
 data-url 0.3.2  (MIT OR Apache-2.0)
 derive_arbitrary 1.5.0  (MIT OR Apache-2.0)
 derive_more 0.99.20  (MIT)
 digest 0.10.7  (MIT OR Apache-2.0)
+digest 0.11.3  (MIT OR Apache-2.0)
 dispatch 0.2.0  (MIT)
 dispatch2 0.3.1  (Zlib OR Apache-2.0 OR MIT)
 dlib 0.5.3  (MIT)
@@ -148,6 +154,7 @@ hashbrown 0.16.1  (MIT OR Apache-2.0)
 hashbrown 0.17.1  (MIT OR Apache-2.0)
 hermit-abi 0.5.3  (MIT OR Apache-2.0)
 hex 0.4.3  (MIT OR Apache-2.0)
+hybrid-array 0.4.15  (MIT OR Apache-2.0)
 iana-time-zone 0.1.65  (MIT OR Apache-2.0)
 iana-time-zone-haiku 0.1.2  (MIT OR Apache-2.0)
 image 0.25.10  (MIT OR Apache-2.0)
@@ -290,6 +297,7 @@ serde_derive 1.0.229  (MIT OR Apache-2.0)
 serde_json 1.0.154  (MIT OR Apache-2.0)
 serde_repr 0.1.21  (MIT OR Apache-2.0)
 sha2 0.10.9  (MIT OR Apache-2.0)
+sha2 0.11.1  (MIT OR Apache-2.0)
 signal-hook-registry 1.4.8  (MIT OR Apache-2.0)
 simd-adler32 0.3.10  (MIT)
 simd_cesu8 1.2.0  (Apache-2.0 OR MIT)
@@ -746,14 +754,14 @@ DEALINGS IN THE SOFTWARE.
 ================================================================================
 ahash 0.8.12, arbitrary 1.5.0, arrayvec 0.7.8, async-channel 2.5.0, async-executor 1.14.0, async-io
 2.6.0, async-lock 3.4.2, async-process 2.5.0, async-recursion 1.2.0, async-signal 0.2.14, async-task
-4.7.1, atomic-waker 1.1.2, bitflags 1.3.2, bitflags 2.13.2, blocking 1.7.0, bumpalo 3.20.3, cfg-if
-1.0.5, cgl 0.3.2, concurrent-queue 2.5.0, core-foundation 0.9.4, core-foundation-sys 0.8.7,
-core-graphics 0.23.2, core-graphics-types 0.1.3, crossbeam-deque 0.8.8, crossbeam-epoch 0.9.21,
-crossbeam-utils 0.8.23, data-url 0.3.2, derive_arbitrary 1.5.0, either 1.19.0, equivalent 1.0.2,
-errno 0.3.14, euclid 0.22.14, event-listener 5.4.2, event-listener-strategy 0.5.4, fastrand 2.5.0,
-flate2 1.1.10, futures-lite 2.6.1, gethostname 1.1.0, glow 0.17.0, hashbrown 0.16.1, hashbrown
-0.17.1, hermit-abi 0.5.3, indexmap 2.14.2, itertools 0.13.0, itertools 0.15.0, js-sys 0.3.106,
-khronos-egl 6.0.0, linux-raw-sys 0.12.1, linux-raw-sys 0.4.15, lock_api 0.4.14, log 0.4.34,
+4.7.1, atomic-waker 1.1.2, base64 0.22.1, bitflags 1.3.2, bitflags 2.13.2, blocking 1.7.0, bumpalo
+3.20.3, cfg-if 1.0.5, cgl 0.3.2, concurrent-queue 2.5.0, core-foundation 0.9.4, core-foundation-sys
+0.8.7, core-graphics 0.23.2, core-graphics-types 0.1.3, crossbeam-deque 0.8.8, crossbeam-epoch
+0.9.21, crossbeam-utils 0.8.23, data-url 0.3.2, derive_arbitrary 1.5.0, either 1.19.0, equivalent
+1.0.2, errno 0.3.14, euclid 0.22.14, event-listener 5.4.2, event-listener-strategy 0.5.4, fastrand
+2.5.0, flate2 1.1.10, futures-lite 2.6.1, gethostname 1.1.0, glow 0.17.0, hashbrown 0.16.1,
+hashbrown 0.17.1, hermit-abi 0.5.3, indexmap 2.14.2, itertools 0.13.0, itertools 0.15.0, js-sys
+0.3.106, khronos-egl 6.0.0, linux-raw-sys 0.12.1, linux-raw-sys 0.4.15, lock_api 0.4.14, log 0.4.34,
 num-complex 0.4.6, num-traits 0.2.19, once_cell 1.21.4, ordered-stream 0.2.0, parking 2.2.1,
 parking_lot 0.12.5, parking_lot_core 0.9.12, percent-encoding 2.3.2, piper 0.2.5, plain 0.2.3, png
 0.18.1, polling 3.11.0, pollster 0.4.0, pollster 1.0.1, rayon 1.12.0, rayon-core 1.13.0,
@@ -2219,6 +2227,32 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
+================================================================================
+base64 0.22.1
+================================================================================
+
+The MIT License (MIT)
+
+Copyright (c) 2015 Alice Maz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
 ================================================================================
 bit-set 0.10.0
 ================================================================================
@@ -2546,7 +2580,9 @@ IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 
 ================================================================================
-block-buffer 0.10.4, cpufeatures 0.2.17, crypto-common 0.1.7, digest 0.10.7, sha2 0.10.9
+block-buffer 0.10.4, block-buffer 0.12.1, const-oid 0.10.2, cpufeatures 0.2.17, cpufeatures 0.3.1,
+crypto-common 0.1.7, crypto-common 0.2.2, digest 0.10.7, digest 0.11.3, hybrid-array 0.4.15, sha2
+0.10.9, sha2 0.11.1
 ================================================================================
 
 Apache License
@@ -2751,6 +2787,36 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
+================================================================================
+block-buffer 0.12.1
+================================================================================
+
+Copyright (c) 2018-2025 The RustCrypto Project Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 branches 0.3.0, rclite 0.2.8
 ================================================================================
@@ -3379,6 +3445,36 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
+================================================================================
+const-oid 0.10.2, cpufeatures 0.3.1
+================================================================================
+
+Copyright (c) 2020-2026 The RustCrypto Project Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 cpufeatures 0.2.17
 ================================================================================
@@ -3731,6 +3827,36 @@ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 
+================================================================================
+crypto-common 0.2.2
+================================================================================
+
+Copyright (c) 2021-2026 RustCrypto Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 cursor-icon 1.2.0
 ================================================================================
@@ -4063,6 +4189,37 @@ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 
+================================================================================
+digest 0.11.3
+================================================================================
+
+Copyright (c) 2017-2025 RustCrypto Developers
+Copyright (c) 2017 Artyom Pavlov
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 dlib 0.5.3
 ================================================================================
@@ -6093,6 +6250,36 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
+================================================================================
+hybrid-array 0.4.15
+================================================================================
+
+Copyright (c) 2022-2026 The RustCrypto Project Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 iana-time-zone 0.1.65, iana-time-zone-haiku 0.1.2
 ================================================================================
@@ -9890,6 +10077,39 @@ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 
+================================================================================
+sha2 0.11.1
+================================================================================
+
+Copyright (c) 2016-2026 The RustCrypto Project Developers
+Copyright (c) 2016 Artyom Pavlov
+Copyright (c) 2009-2013 Mozilla Foundation
+Copyright (c) 2006-2009 Graydon Hoare
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
 ================================================================================
 signal-hook-registry 1.4.8
 ================================================================================
@@ -13024,7 +13244,7 @@ freely, subject to the following restrictions:
 
 ================================================================================
 Crates whose package carries no licence file (their licence is named in Cargo.toml; the MIT and Apache-2.0
-texts are as in ModelCraft's own LICENSE-MIT and LICENSE-APACHE)
+texts are as in FieldCraft's own LICENSE-MIT and LICENSE-APACHE)
 ================================================================================
 
 accesskit 0.24.1: MIT OR Apache-2.0 (https://github.com/AccessKit/accesskit)

apps/fieldcraft-cli/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "fieldcraft-cli"
+description = "FieldCraft from the command line: list commands, run scripts, serve MCP"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+fieldcraft-engine = { workspace = true }
+fieldcraft-io = { workspace = true }
+fieldcraft-mcp = { workspace = true }
+serde_json = { workspace = true }

apps/fieldcraft-cli/src/main.rs

@@ -1,31 +1,33 @@
-//! modelcraft-cli commands
-//! modelcraft-cli run <script.json>
-//! modelcraft-cli features
-//! modelcraft-cli mcp [--connect ADDR | --headless] [--automation-read-root DIR] [--automation-write-root DIR]
+//! fieldcraft-cli commands
+//! fieldcraft-cli run <script.json>
+//! fieldcraft-cli features
+//! fieldcraft-cli mcp [--connect ADDR | --headless] [--automation-read-root DIR] [--automation-write-root DIR]
+//! fieldcraft-cli --version
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
 #![forbid(unsafe_code)]
 
 use std::path::Path;
 use std::process::ExitCode;
 
-use modelcraft_engine::Session;
+use fieldcraft_engine::Session;
 use serde_json::json;
 
 const USAGE: &str = "\
 usage:
-  modelcraft-cli commands              list every command with its parameters
-  modelcraft-cli run <script.json>     run a script (a JSON array of {\"command\", \"params\"})
+  fieldcraft-cli commands              list every command with its parameters
+  fieldcraft-cli run <script.json>     run a script (a JSON array of {\"command\", \"params\"})
                                        and print the model summary
-  modelcraft-cli features              print docs/features.md (every capability, ready or
+  fieldcraft-cli features              print docs/features.md (every capability, ready or
                                        coming soon) from the capability catalogue
-  modelcraft-cli mcp [options]         serve the Model Context Protocol on stdin/stdout
+  fieldcraft-cli mcp [options]         serve the Model Context Protocol on stdin/stdout
                                        (docs/mcp.md):
       --headless                       an in-process session (the default)
-      --connect ADDR                   drive the app at ADDR (`modelcraft --control PORT`);
+      --connect ADDR                   drive the app at ADDR (`fieldcraft --control PORT`);
                                        headless when it cannot be reached
       --automation-read-root DIR       files may be read only inside DIR
       --automation-write-root DIR      files may be written only inside DIR (with either root,
                                        the access a root left out is not granted)
+  fieldcraft-cli --version             print the version
 ";
 
 /// Largest script accepted (bytes).
@@ -35,17 +37,21 @@ fn main() -> ExitCode {
     let args: Vec<String> = std::env::args().skip(1).collect();
     let result = match args.first().map(String::as_str) {
         Some("commands") => {
-            for c in modelcraft_engine::commands() {
+            for c in fieldcraft_engine::commands() {
                 println!("{:<24} {:<18} {}", c.id, c.label, c.params);
             }
             Ok(())
         }
         Some("features") => {
-            print!("{}", modelcraft_engine::catalogue::features_page());
+            print!("{}", fieldcraft_engine::catalogue::features_page());
             Ok(())
         }
         Some("mcp") => mcp(args.get(1..).unwrap_or(&[])),
         Some("run") => args.get(1).ok_or_else(|| format!("run needs a script\n\n{USAGE}")).and_then(|p| run(p)),
+        Some("-V" | "--version") => {
+            println!("fieldcraft-cli {}", env!("CARGO_PKG_VERSION"));
+            Ok(())
+        }
         Some("-h" | "--help" | "help") | None => {
             print!("{USAGE}");
             Ok(())
@@ -62,7 +68,7 @@ fn main() -> ExitCode {
 }
 
 /// The `mcp` options: each given once, as `--flag value` or `--flag=value`.
-fn mcp_options(args: &[String]) -> Result<modelcraft_mcp::Options, String> {
+fn mcp_options(args: &[String]) -> Result<fieldcraft_mcp::Options, String> {
     let mut connect = None;
     let mut headless = false;
     let mut read = None;
@@ -94,18 +100,18 @@ fn mcp_options(args: &[String]) -> Result<modelcraft_mcp::Options, String> {
         return Err("--connect and --headless exclude each other".into());
     }
     let roots = match (&read, &write) {
-        (None, None) => modelcraft_io::roots::Roots::default(),
-        _ => modelcraft_io::roots::Roots::new(read.as_deref().map(Path::new), write.as_deref().map(Path::new)).map_err(|e| e.to_string())?,
+        (None, None) => fieldcraft_io::roots::Roots::default(),
+        _ => fieldcraft_io::roots::Roots::new(read.as_deref().map(Path::new), write.as_deref().map(Path::new)).map_err(|e| e.to_string())?,
     };
-    Ok(modelcraft_mcp::Options { connect, roots })
+    Ok(fieldcraft_mcp::Options { connect, roots })
 }
 
 fn mcp(args: &[String]) -> Result<(), String> {
-    let (backend, note) = modelcraft_mcp::backend(mcp_options(args)?)?;
+    let (backend, note) = fieldcraft_mcp::backend(mcp_options(args)?)?;
     if let Some(note) = note {
-        eprintln!("modelcraft-cli mcp: {note}");
+        eprintln!("fieldcraft-cli mcp: {note}");
     }
-    let mut server = modelcraft_mcp::Server::new(backend);
+    let mut server = fieldcraft_mcp::Server::new(backend);
     server.serve(std::io::stdin().lock(), std::io::stdout().lock()).map_err(|e| format!("mcp: {e}"))
 }
 
@@ -127,7 +133,7 @@ fn run(path: &str) -> Result<(), String> {
 mod tests {
     use super::*;
 
-    fn opts(args: &[&str]) -> Result<modelcraft_mcp::Options, String> {
+    fn opts(args: &[&str]) -> Result<fieldcraft_mcp::Options, String> {
         mcp_options(&args.iter().map(|s| s.to_string()).collect::<Vec<_>>())
     }
 

apps/fieldcraft-cli/tests/version.rs

@@ -0,0 +1,12 @@
+//! `fieldcraft-cli --version`, which the release packaging runs to check each build.
+
+use std::process::Command;
+
+#[test]
+fn version_prints_the_workspace_version() {
+    for flag in ["--version", "-V"] {
+        let out = Command::new(env!("CARGO_BIN_EXE_fieldcraft-cli")).arg(flag).output().unwrap();
+        assert!(out.status.success(), "{flag}: {out:?}");
+        assert_eq!(String::from_utf8_lossy(&out.stdout).trim(), format!("fieldcraft-cli {}", env!("CARGO_PKG_VERSION")));
+    }
+}

apps/fieldcraft-web/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "fieldcraft-web"
+description = "FieldCraft in the browser (eframe web runner, WebGPU with WebGL2 fallback)"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+publish = false
+
+[lints]
+workspace = true
+
+[[bin]]
+name = "fieldcraft-web"
+path = "src/main.rs"
+
+[dependencies]
+fieldcraft-engine = { workspace = true }
+fieldcraft-ui-egui = { workspace = true }
+fieldcraft-io = { workspace = true }
+egui = { workspace = true }
+serde_json = { workspace = true }
+log = { workspace = true }
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+# `wgpu` pulls egui-wgpu's defaults: WebGPU plus the WebGL2 fallback.
+eframe = { workspace = true, features = ["default_fonts", "wgpu", "accesskit"] }
+# `file-handle-inner`: a picked file's size, checked before it is read.
+rfd = { workspace = true, features = ["file-handle-inner"] }
+wasm-bindgen = "0.2"
+wasm-bindgen-futures = "0.4"
+js-sys = "0.3"
+web-sys = { version = "0.3", features = ["Window", "Document", "Element", "HtmlElement", "HtmlCanvasElement", "HtmlAnchorElement", "Blob", "BlobPropertyBag", "Url", "Location", "DomTokenList", "CssStyleDeclaration", "Event", "EventTarget", "BeforeUnloadEvent", "Storage"] }
+# Autosaves kept in the browser's local storage, which holds text.
+base64 = "0.22"

apps/fieldcraft-web/Trunk.toml

@@ -0,0 +1,10 @@
+# Build with: trunk build --release   (from apps/fieldcraft-web; docs/web.md)
+[build]
+target = "index.html"
+dist = "../../dist/web"
+public_url = "./"
+filehash = true
+
+[serve]
+addresses = ["127.0.0.1"]
+port = 8790

apps/fieldcraft-web/index.html

@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
+  <title>FieldCraft</title>
+  <meta name="description" content="Open-source CAE modeling in Rust: mesh a part, set up the analysis and solve it, in your browser.">
+  <link data-trunk rel="rust" data-bin="fieldcraft-web" data-wasm-opt="z" data-weak-refs />
+  <link data-trunk rel="icon" type="image/svg+xml" href="../../assets/app-icon/icon-small.svg" />
+  <link data-trunk rel="copy-file" href="../../assets/app-icon/icon.iconset/icon_128x128@2x.png" data-target-path="icons" />
+  <link rel="apple-touch-icon" href="icons/icon_128x128@2x.png">
+  <style>
+    html, body { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; background: #262c37; }
+    #fieldcraft_canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
+    #fieldcraft_loading { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
+      gap: 16px; padding: 0 16px; text-align: center; color: #c3cad6; font: 14px system-ui, sans-serif; pointer-events: none; }
+    #fieldcraft_loading img { width: 96px; height: 96px; }
+    #fieldcraft_loading p { margin: 0; max-width: 32em; }
+    #fieldcraft_loading.failed { pointer-events: auto; }
+    #fieldcraft_loading.failed img, #fieldcraft_loading.failed .spinner { display: none; }
+    .spinner { width: 24px; height: 24px; border-radius: 50%; border: 3px solid #4a5468; border-top-color: #c3cad6; animation: spin 0.9s linear infinite; }
+    @keyframes spin { to { transform: rotate(360deg); } }
+    @media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
+  </style>
+</head>
+<body>
+  <canvas id="fieldcraft_canvas"></canvas>
+  <div id="fieldcraft_loading">
+    <img src="icons/icon_128x128@2x.png" alt="">
+    <div class="spinner"></div>
+    <p>Loading FieldCraft&hellip;</p>
+    <noscript><p>FieldCraft needs JavaScript and WebAssembly.</p></noscript>
+  </div>
+  <script>
+    // The page could not load or start the app (no WebAssembly, a failed download): say so
+    // instead of loading forever. Once the app runs it removes the loading screen.
+    (function () {
+      function fail(why) {
+        var el = document.getElementById("fieldcraft_loading");
+        if (!el || el.classList.contains("failed")) return;
+        el.classList.add("failed");
+        el.textContent = "";
+        ["FieldCraft could not start: " + why, "It needs a current browser with WebAssembly and WebGPU or WebGL2."].forEach(function (t) {
+          var p = document.createElement("p");
+          p.textContent = t;
+          el.appendChild(p);
+        });
+      }
+      if (typeof WebAssembly !== "object") fail("this browser has no WebAssembly.");
+      addEventListener("unhandledrejection", function (e) { fail(String(e.reason && e.reason.message || e.reason)); });
+    })();
+  </script>
+</body>
+</html>

apps/fieldcraft-web/src/main.rs

@@ -0,0 +1,76 @@
+//! FieldCraft in the browser.
+//!
+//! Runs the same [`fieldcraft_ui_egui::ModelApp`] as the desktop app through eframe's web runner
+//! (wgpu: WebGPU where available, WebGL2 otherwise). Build with `trunk build --release` from this
+//! directory (output in `dist/web`); docs/web.md says what works in the browser.
+//!
+//! Differences from the desktop app, all behind the UI's host services:
+//! - files live in the page ([`fieldcraft_io::fs`] keeps them in memory): File › Open and drops
+//!   read the computer's files into it; Save, Save As and Write Deck hand the written file out as
+//!   a download;
+//! - autosaves for recovery are kept in the browser's local storage ([`storage`]);
+//! - no control channel (a page can't listen on a socket);
+//! - background jobs (meshing, solving) run on the page's one thread once the window has shown
+//!   that they run.
+//!
+//! Address flags: `?sample` or `?sample=cantilever` opens a sample, `?webgl` forces WebGL2.
+#![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
+#![forbid(unsafe_code)]
+
+#[cfg(target_arch = "wasm32")]
+mod storage;
+#[cfg(target_arch = "wasm32")]
+mod web;
+
+#[cfg(target_arch = "wasm32")]
+fn main() {
+    web::start();
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+fn main() {
+    eprintln!("fieldcraft-web only runs in the browser: build it with `trunk build --release` in apps/fieldcraft-web (docs/web.md)");
+}
+
+/// The sample an address asks for (`?sample` opens the first sample, `?sample=NAME` that one).
+#[cfg_attr(not(target_arch = "wasm32"), allow(dead_code))]
+fn sample_in_query(query: &str) -> Option<String> {
+    let first = fieldcraft_engine::sample::SAMPLES.first().map_or("", |s| s.name);
+    query.trim_start_matches('?').split('&').find_map(|kv| {
+        let (key, value) = kv.split_once('=').unwrap_or((kv, ""));
+        (key == "sample").then(|| if value.is_empty() { first } else { value }.to_string())
+    })
+}
+
+/// The name a file from the computer is kept under in the page: its last path part, without
+/// characters a path would read as folders.
+#[cfg_attr(not(target_arch = "wasm32"), allow(dead_code))]
+fn safe_name(name: &str) -> String {
+    let last = name.rsplit(['/', '\\']).next().unwrap_or_default();
+    let clean: String = last.chars().filter(|c| !c.is_control()).take(200).collect();
+    if clean.is_empty() || clean == "." || clean == ".." { "file".to_string() } else { clean }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn samples_from_the_address() {
+        assert_eq!(sample_in_query(""), None);
+        assert_eq!(sample_in_query("?sample").as_deref(), Some("parts"));
+        assert_eq!(sample_in_query("?webgl&sample=cantilever").as_deref(), Some("cantilever"));
+        assert_eq!(sample_in_query("?sample=").as_deref(), Some("parts"));
+        assert_eq!(sample_in_query("?samples=x"), None);
+    }
+
+    #[test]
+    fn file_names_stay_in_their_folder() {
+        assert_eq!(safe_name("beam.fieldcraft"), "beam.fieldcraft");
+        assert_eq!(safe_name("../../etc/passwd"), "passwd");
+        assert_eq!(safe_name("C:\\work\\plate.solidcraft"), "plate.solidcraft");
+        assert_eq!(safe_name(".."), "file");
+        assert_eq!(safe_name(""), "file");
+        assert_eq!(safe_name("a\u{0}b.3mf"), "ab.3mf");
+    }
+}

apps/fieldcraft-web/src/storage.rs

@@ -0,0 +1,101 @@
+//! Autosaves kept in the browser.
+//!
+//! The engine's recovery folder is [`fieldcraft_io::recovery::BROWSER_DIR`] among the page's
+//! files, which last only as long as the page. This mirrors it to the browser's local storage
+//! (kept across visits, shared by the site's tabs): each file as base64 under
+//! [`PREFIX`]`<file name>`. At start the stored files go back into the folder, so the desktop's
+//! recovery flow (File › Recover…, `file.recovery.*`) offers what a closed or crashed page left.
+//!
+//! Local storage holds a few megabytes per site: an autosave larger than [`MAX_AUTOSAVE_BYTES`]
+//! (or one the browser refuses) is not kept, and the status bar says so.
+
+use std::collections::BTreeSet;
+use std::path::Path;
+
+use base64::Engine as _;
+use base64::engine::general_purpose::STANDARD;
+use fieldcraft_io::recovery::BROWSER_DIR;
+
+const PREFIX: &str = "fieldcraft-recovery/";
+
+/// Largest stored file taken back (local storage itself holds less).
+const MAX_STORED_CHARS: usize = 64 << 20;
+
+/// Largest autosave kept: base64 makes it a third larger, and browsers give a site about 5 MB.
+pub const MAX_AUTOSAVE_BYTES: usize = 3 << 20;
+
+fn local_storage() -> Result<web_sys::Storage, String> {
+    web_sys::window().ok_or("no window")?.local_storage().map_err(crate::web::js_err)?.ok_or_else(|| "browser storage is turned off".into())
+}
+
+/// The mirror: the stored files this page knows of (took back or wrote), by file name.
+#[derive(Default)]
+pub struct Store {
+    known: BTreeSet<String>,
+}
+
+pub fn dir() -> &'static Path {
+    Path::new(BROWSER_DIR)
+}
+
+/// A file name of the recovery folder that is safe as a key (the engine's ids and extensions).
+fn valid(name: &str) -> bool {
+    !name.is_empty() && name.len() <= 100 && name.chars().all(|c| c.is_ascii_alphanumeric() || c == '-' || c == '.') && !name.starts_with('.')
+}
+
+impl Store {
+    /// Put the stored files back into the recovery folder.
+    pub fn load() -> Store {
+        let mut store = Store::default();
+        let s = match local_storage() {
+            Ok(s) => s,
+            Err(e) => {
+                log::warn!("autosaves: {e}");
+                return store;
+            }
+        };
+        let keys: Vec<String> = (0..s.length().unwrap_or(0)).filter_map(|i| s.key(i).ok().flatten()).collect();
+        for key in keys {
+            let Some(name) = key.strip_prefix(PREFIX).filter(|n| valid(n)) else { continue };
+            let Some(text) = s.get_item(&key).ok().flatten().filter(|t| t.len() <= MAX_STORED_CHARS) else { continue };
+            let Ok(bytes) = STANDARD.decode(text.as_bytes()).map_err(|e| log::warn!("autosave {name} is damaged: {e}")) else { continue };
+            match fieldcraft_io::fs::insert(&dir().join(name), bytes) {
+                Ok(()) => {
+                    store.known.insert(name.to_string());
+                }
+                Err(e) => log::warn!("autosave {name}: {e}"),
+            }
+        }
+        store
+    }
+
+    /// Keep a file the engine wrote in the recovery folder.
+    pub fn put(&mut self, path: &Path, bytes: &[u8]) -> Result<(), String> {
+        let name =
+            path.file_name().and_then(|n| n.to_str()).filter(|n| valid(n)).ok_or_else(|| format!("{}: not a recovery file", path.display()))?;
+        if bytes.len() > MAX_AUTOSAVE_BYTES {
+            return Err(format!("the model ({} MB) is too large for the browser's storage", bytes.len() >> 20));
+        }
+        self.known.insert(name.to_string());
+        local_storage()?
+            .set_item(&format!("{PREFIX}{name}"), &STANDARD.encode(bytes))
+            .map_err(|e| format!("browser storage is full or turned off ({})", crate::web::js_err(e)))
+    }
+
+    /// Drop the stored files whose entries left the recovery folder (cleared once saved,
+    /// recovered and discarded). Only files this page knows of: another tab's stay.
+    pub fn sync_removals(&mut self) {
+        let present: BTreeSet<String> =
+            fieldcraft_io::fs::list(dir()).iter().filter_map(|p| p.file_name().and_then(|n| n.to_str()).map(str::to_string)).collect();
+        let gone: Vec<String> = self.known.difference(&present).cloned().collect();
+        if gone.is_empty() {
+            return;
+        }
+        let Ok(s) = local_storage() else { return };
+        for name in gone {
+            if s.remove_item(&format!("{PREFIX}{name}")).is_ok() {
+                self.known.remove(&name);
+            }
+        }
+    }
+}

apps/fieldcraft-web/src/web.rs

@@ -0,0 +1,326 @@
+//! The browser shell: the web services of the UI (file pickers, downloads), dropped files, the
+//! autosave, and eframe's web runner.
+//!
+//! Structure follows VectorCraft's `apps/vectorcraft-web/src/web.rs` and SolidCraft's
+//! `apps/solidcraft-web/src/main.rs` (MIT OR Apache-2.0), see ATTRIBUTION.md.
+
+use std::cell::{Cell, RefCell};
+use std::path::Path;
+use std::rc::Rc;
+
+use fieldcraft_engine::Session;
+use fieldcraft_engine::autosave::Autosaver;
+use fieldcraft_ui_egui::files::Kind;
+use fieldcraft_ui_egui::{Filter, ModelApp, Services};
+use wasm_bindgen::JsCast as _;
+
+use crate::storage::{self, Store};
+
+const CANVAS_ID: &str = "fieldcraft_canvas";
+const LOADING_ID: &str = "fieldcraft_loading";
+const DEPTH_BITS: u8 = 24;
+
+/// The page's folder for files from the computer and the files commands write.
+const FILES_DIR: &str = "/files";
+
+/// How often unsaved changes are autosaved for recovery (seconds), as on the desktop.
+const AUTOSAVE_SECONDS: f64 = 30.0;
+
+/// Files read from the computer (picked together or dropped together), waiting for the next
+/// frame: (name, bytes or why they could not be read) each.
+type Batch = Vec<(String, Result<Vec<u8>, String>)>;
+type Inbox = Rc<RefCell<Vec<Batch>>>;
+
+/// Largest file read from the computer: what the page can hold.
+const MAX_READ_BYTES: f64 = fieldcraft_io::memory::MAX_TOTAL_BYTES as f64;
+
+/// Why a file of `size` bytes is not read, if it is too large.
+fn too_large(size: f64) -> Option<String> {
+    (size > MAX_READ_BYTES)
+        .then(|| format!("{} MB is more than this page holds ({} MB)", (size / 1048576.0).round(), fieldcraft_io::memory::MAX_TOTAL_BYTES >> 20))
+}
+
+/// Hand files read from the computer to the next frame.
+fn deliver(inbox: &Inbox, ctx: &egui::Context, batch: Batch) {
+    inbox.borrow_mut().push(batch);
+    ctx.request_repaint();
+}
+
+/// Where a file named `name` is kept in the page.
+fn page_path(name: &str) -> String {
+    format!("{FILES_DIR}/{}", crate::safe_name(name))
+}
+
+thread_local! {
+    /// The model has unsaved changes: leaving the page asks first.
+    static UNSAVED: Cell<bool> = const { Cell::new(false) };
+}
+
+pub fn js_err(e: wasm_bindgen::JsValue) -> String {
+    e.as_string().unwrap_or_else(|| format!("{e:?}"))
+}
+
+fn query() -> String {
+    web_sys::window().and_then(|w| w.location().search().ok()).unwrap_or_default()
+}
+
+fn element(id: &str) -> Option<web_sys::Element> {
+    web_sys::window()?.document()?.get_element_by_id(id)
+}
+
+pub fn start() {
+    eframe::WebLogger::init(log::LevelFilter::Info).ok();
+    // The browser's clock for the recovery entries (the plain wasm target has none).
+    fieldcraft_io::recovery::set_clock(|| js_sys::Date::now().max(0.0) as u64);
+    let Some(window) = web_sys::window() else { return };
+    ask_before_unload(&window);
+    let Some(canvas) = element(CANVAS_ID).and_then(|e| e.dyn_into::<web_sys::HtmlCanvasElement>().ok()) else {
+        log::error!("missing <canvas id=\"{CANVAS_ID}\">");
+        return;
+    };
+    wasm_bindgen_futures::spawn_local(async move {
+        let result = eframe::WebRunner::new()
+            .start(
+                canvas,
+                web_options(),
+                Box::new(|cc| {
+                    let inbox = Inbox::default();
+                    let mut app = ModelApp::new(Session::default()).with_services(services(inbox.clone(), cc.egui_ctx.clone()));
+                    if let Some(rs) = &cc.wgpu_render_state {
+                        let info = rs.adapter.get_info();
+                        log::info!("fieldcraft-web: graphics {:?} {}, MSAA {}x", info.backend, info.name, rs.msaa_samples);
+                        app.set_wgpu(rs, DEPTH_BITS, rs.msaa_samples, &cc.egui_ctx);
+                    }
+                    // The autosaves a closed or crashed page left, back in the recovery folder.
+                    let store = Store::load();
+                    let listed = app.session.execute("file.recovery.list", &serde_json::json!({}));
+                    let recoverable = listed.ok().and_then(|v| v.as_array().map(Vec::len)).unwrap_or(0);
+                    let autosaver = Autosaver::new(storage::dir()).map_err(|e| log::warn!("autosave unavailable: {e}")).ok();
+                    if let Some(name) = crate::sample_in_query(&query()) {
+                        app.open_sample(&name);
+                    }
+                    if recoverable > 0 {
+                        app.set_status(format!("{recoverable} autosaved model(s) can be recovered: File › Recover…"), false);
+                    }
+                    Ok(Box::new(Shell { app, inbox, store, autosaver, autosaved_at: 0.0, storage_error: false }))
+                }),
+            )
+            .await;
+        match result {
+            Ok(()) => {
+                if let Some(el) = element(LOADING_ID) {
+                    el.remove();
+                }
+            }
+            Err(e) => failed(&format!("FieldCraft could not start: {}", js_err(e))),
+        }
+    });
+}
+
+/// The runner's options: wgpu (WebGPU where available, else WebGL2; `?webgl` forces WebGL2).
+fn web_options() -> eframe::WebOptions {
+    let mut options = eframe::WebOptions { depth_buffer: DEPTH_BITS, ..Default::default() };
+    if query().split(['?', '&']).any(|kv| kv == "webgl")
+        && let eframe::egui_wgpu::WgpuSetup::CreateNew(create) = &mut options.wgpu_options.wgpu_setup
+    {
+        create.instance_descriptor.backends = eframe::wgpu::Backends::GL;
+    }
+    options
+}
+
+/// Replace the loading screen with why the app could not start.
+fn failed(why: &str) {
+    log::error!("{why}");
+    let Some(el) = element(LOADING_ID) else { return };
+    let Some(document) = web_sys::window().and_then(|w| w.document()) else { return };
+    el.set_text_content(None);
+    // Best effort: the console has the message too.
+    let _ = el.class_list().add_1("failed");
+    for line in
+        [why, "FieldCraft needs a browser with WebGPU or WebGL2 (a current Chrome, Edge, Firefox or Safari) and graphics acceleration turned on."]
+    {
+        if let Ok(p) = document.create_element("p") {
+            p.set_text_content(Some(line));
+            let _ = el.append_child(&p);
+        }
+    }
+}
+
+/// The browser's "leave site? changes you made may not be saved" prompt while the model has
+/// unsaved changes (a page that is closing can't show its own dialog).
+fn ask_before_unload(window: &web_sys::Window) {
+    let on_unload = wasm_bindgen::closure::Closure::<dyn FnMut(web_sys::BeforeUnloadEvent)>::new(|e: web_sys::BeforeUnloadEvent| {
+        if UNSAVED.with(Cell::get) {
+            e.prevent_default();
+            e.set_return_value("unsaved");
+        }
+    });
+    if let Err(e) = window.add_event_listener_with_callback("beforeunload", on_unload.as_ref().unchecked_ref()) {
+        log::warn!("couldn't ask before leaving: {}", js_err(e));
+    }
+    // The listener lives as long as the page.
+    on_unload.forget();
+}
+
+/// The UI's host services in the browser.
+fn services(inbox: Inbox, ctx: egui::Context) -> Services {
+    Services {
+        // The browser's file picker: the files arrive in a later frame (the picker and the reads
+        // are asynchronous), so the call itself picks nothing.
+        pick_open: Some(Box::new(move |filters: &[Filter]| {
+            let (inbox, ctx) = (inbox.clone(), ctx.clone());
+            let dialog = filters.iter().fold(rfd::AsyncFileDialog::new(), |d, f| d.add_filter(f.name, f.extensions));
+            wasm_bindgen_futures::spawn_local(async move {
+                let Some(files) = dialog.pick_files().await else { return };
+                let mut batch = Vec::with_capacity(files.len());
+                for f in files {
+                    let read = match too_large(f.inner().size()) {
+                        Some(why) => Err(why),
+                        None => Ok(f.read().await),
+                    };
+                    batch.push((f.file_name(), read));
+                }
+                deliver(&inbox, &ctx, batch);
+            });
+            None
+        })),
+        // Saving writes into the page; the shell hands each written file out as a download.
+        pick_save: Some(Box::new(|name: &str, _: &[Filter]| Some(page_path(name)))),
+        // The recent list holds the page's files, which go with the page.
+        recent_path: None,
+    }
+}
+
+/// The app with the browser's files around it.
+struct Shell {
+    app: ModelApp,
+    inbox: Inbox,
+    store: Store,
+    /// `None` when autosave could not start.
+    autosaver: Option<Autosaver>,
+    /// App time of the last autosave check.
+    autosaved_at: f64,
+    /// The last autosave did not fit in the browser's storage (said once until one fits).
+    storage_error: bool,
+}
+
+impl Shell {
+    /// Files read from the computer go into the page's folder, then open: a model with the
+    /// design and meshes it refers to picked or dropped with it, else each file in turn.
+    fn open_arrived(&mut self) {
+        let batches: Vec<_> = self.inbox.borrow_mut().drain(..).collect();
+        for batch in batches {
+            let mut paths = Vec::with_capacity(batch.len());
+            for (name, read) in batch {
+                let path = page_path(&name);
+                match read.and_then(|bytes| fieldcraft_io::fs::insert(Path::new(&path), bytes).map_err(|e| e.to_string())) {
+                    Ok(()) => paths.push(path),
+                    Err(e) => self.app.set_status(format!("{name}: {e}"), true),
+                }
+            }
+            let model = paths.iter().find(|p| Kind::of(p) == Some(Kind::Model)).cloned();
+            match model {
+                // Its geometry files open with it, from the same folder.
+                Some(model) => self.app.open_path(&model),
+                None => {
+                    for p in &paths {
+                        self.app.open_path(p);
+                    }
+                }
+            }
+        }
+    }
+
+    /// What commands wrote: autosaves to the browser's storage, everything else downloaded.
+    fn hand_out_writes(&mut self) {
+        for (path, bytes) in fieldcraft_io::fs::take_writes() {
+            if path.parent() == Some(storage::dir()) {
+                match self.store.put(&path, &bytes) {
+                    Ok(()) => self.storage_error = false,
+                    Err(e) if !self.storage_error => {
+                        self.storage_error = true;
+                        self.app.set_status(format!("Autosave: {e}. Save the model to keep it (File › Save downloads it)"), true);
+                    }
+                    Err(e) => log::warn!("autosave: {e}"),
+                }
+            } else if let Err(e) = download(&path, &bytes) {
+                self.app.set_status(format!("{}: the download did not start ({e})", path.display()), true);
+            }
+        }
+        self.store.sync_removals();
+    }
+
+    fn autosave(&mut self, ctx: &egui::Context) {
+        let Some(a) = &mut self.autosaver else { return };
+        if self.app.now - self.autosaved_at >= AUTOSAVE_SECONDS {
+            self.autosaved_at = self.app.now;
+            if let Err(e) = a.save(&self.app.session) {
+                log::warn!("autosave: {e}");
+            }
+        }
+        ctx.request_repaint_after(std::time::Duration::from_secs_f64(AUTOSAVE_SECONDS));
+    }
+}
+
+impl eframe::App for Shell {
+    fn logic(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
+        self.open_arrived();
+        self.app.logic(ctx);
+        self.autosave(ctx);
+        UNSAVED.with(|u| u.set(self.app.session.is_dirty() && !self.app.session.journal.is_empty()));
+    }
+
+    /// Dropped files are read here (browsers read them asynchronously) and arrive through the
+    /// inbox; the app never sees their names as paths.
+    fn raw_input_hook(&mut self, ctx: &egui::Context, raw: &mut egui::RawInput) {
+        let dropped = std::mem::take(&mut raw.dropped_files);
+        if !dropped.is_empty() {
+            let (inbox, ctx) = (self.inbox.clone(), ctx.clone());
+            wasm_bindgen_futures::spawn_local(async move {
+                let mut batch = Vec::with_capacity(dropped.len());
+                for f in dropped {
+                    let name = f.path().to_string_lossy().to_string();
+                    let read = match f.web_file().and_then(|w| too_large(w.size())) {
+                        Some(why) => Err(why),
+                        None => f.bytes_async().await,
+                    };
+                    batch.push((name, read));
+                }
+                deliver(&inbox, &ctx, batch);
+            });
+        }
+        self.app.raw_input_hook(raw);
+    }
+
+    fn ui(&mut self, ui: &mut egui::Ui, _frame: &mut eframe::Frame) {
+        self.app.ui(ui);
+        // Once a frame, after everything that writes: autosaves, saves and decks.
+        self.hand_out_writes();
+    }
+}
+
+/// Hand `bytes` out as a download named after the last part of `path`.
+fn download(path: &Path, bytes: &[u8]) -> Result<(), String> {
+    let name = path.file_name().and_then(|n| n.to_str()).unwrap_or("fieldcraft").to_string();
+    let window = web_sys::window().ok_or("no window")?;
+    let document = window.document().ok_or("no document")?;
+    let parts = js_sys::Array::of1(&js_sys::Uint8Array::from(bytes));
+    let options = web_sys::BlobPropertyBag::new();
+    options.set_type("application/octet-stream");
+    let blob = web_sys::Blob::new_with_u8_array_sequence_and_options(&parts, &options).map_err(js_err)?;
+    let url = web_sys::Url::create_object_url_with_blob(&blob).map_err(js_err)?;
+    let a: web_sys::HtmlAnchorElement = document.create_element("a").map_err(js_err)?.dyn_into().map_err(|_| "not a link")?;
+    a.set_href(&url);
+    a.set_download(&name);
+    a.style().set_property("display", "none").map_err(js_err)?;
+    document.body().ok_or("no body")?.append_child(&a).map_err(js_err)?;
+    a.click();
+    a.remove();
+    // Revoked once the click has been dispatched; the download keeps its own reference.
+    let revoke = wasm_bindgen::closure::Closure::once_into_js(move || {
+        let _ = web_sys::Url::revoke_object_url(&url);
+    });
+    // The download has started: a timer that can't be set leaves the URL allocated, no more.
+    let _ = window.set_timeout_with_callback_and_timeout_and_arguments_0(revoke.unchecked_ref(), 10_000);
+    Ok(())
+}

apps/fieldcraft/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "modelcraft"
-description = "ModelCraft desktop app"
+name = "fieldcraft"
+description = "FieldCraft desktop app"
 version.workspace = true
 edition.workspace = true
 license.workspace = true
@@ -10,11 +10,15 @@ publish = false
 workspace = true
 
 [dependencies]
-modelcraft-engine = { workspace = true }
-modelcraft-ui-egui = { workspace = true }
-modelcraft-io = { workspace = true }
+fieldcraft-engine = { workspace = true }
+fieldcraft-ui-egui = { workspace = true }
+fieldcraft-io = { workspace = true }
 rfd = { workspace = true }
 eframe = { workspace = true, features = ["default_fonts", "wgpu", "accesskit", "wayland", "x11"] }
 egui = { workspace = true }
 serde_json = { workspace = true }
 log = { workspace = true }
+
+[build-dependencies]
+# The Windows executable's icon resource (build.rs).
+embed-resource = "3.0.12"

apps/fieldcraft/build.rs

@@ -0,0 +1,20 @@
+//! Windows builds embed the application icon (assets/app-icon/icon.ico) in `fieldcraft.exe`, so
+//! Explorer, the taskbar and shortcuts show it. Other targets need nothing here.
+#![forbid(unsafe_code)]
+
+use std::path::PathBuf;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let icon = PathBuf::from(std::env::var("CARGO_MANIFEST_DIR")?).join("../../assets/app-icon/icon.ico");
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-changed={}", icon.display());
+    if std::env::var("CARGO_CFG_TARGET_OS")? != "windows" {
+        return Ok(());
+    }
+    let out = PathBuf::from(std::env::var("OUT_DIR")?);
+    let rc = out.join("fieldcraft.rc");
+    std::fs::write(&rc, format!("1 ICON \"{}\"\n", icon.display().to_string().replace('\\', "/")))?;
+    // Missing resource tools are a build error, rather than silently shipping a generic icon.
+    embed_resource::compile_for(&rc, ["fieldcraft"], embed_resource::NONE).manifest_required()?;
+    Ok(())
+}

apps/fieldcraft/src/control_server.rs

@@ -1,6 +1,6 @@
 //! Loopback JSON-lines control server: one request per line, one reply per line. Agents and
 //! tests drive the app through it; the UI thread answers each request between frames
-//! (`modelcraft_ui_egui::control`).
+//! (`fieldcraft_ui_egui::control`).
 //!
 //! Adapted from SolidCraft's `apps/solidcraft/src/control_server.rs` (MIT OR Apache-2.0), see
 //! ATTRIBUTION.md.
@@ -11,7 +11,7 @@ use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::mpsc::{Receiver, Sender, channel};
 use std::time::Duration;
 
-use modelcraft_ui_egui::ControlRequest;
+use fieldcraft_ui_egui::ControlRequest;
 use serde_json::{Value, json};
 
 /// Longest request line (bytes).
@@ -31,11 +31,11 @@ pub fn start(port: u16, ctx: egui::Context) -> Receiver<ControlRequest> {
     let listener = match TcpListener::bind(("127.0.0.1", port)) {
         Ok(l) => l,
         Err(e) => {
-            eprintln!("modelcraft: control server failed to bind 127.0.0.1:{port}: {e}");
+            eprintln!("fieldcraft: control server failed to bind 127.0.0.1:{port}: {e}");
             return rx;
         }
     };
-    eprintln!("modelcraft: control server listening on 127.0.0.1:{port}");
+    eprintln!("fieldcraft: control server listening on 127.0.0.1:{port}");
     std::thread::spawn(move || {
         for stream in listener.incoming().flatten() {
             if OPEN.fetch_add(1, Ordering::Relaxed) >= MAX_CONNECTIONS {

apps/fieldcraft/src/main.rs

@@ -1,27 +1,30 @@
-//! ModelCraft desktop app.
+//! FieldCraft desktop app.
 //!
-//! Usage: `modelcraft [--sample [NAME]] [--control PORT] [FILE…]` (files open as if dropped on the
-//! window; NAME is a sample of `modelcraft_engine::sample`, `parts` by default)
+//! Usage: `fieldcraft [--sample [NAME]] [--control PORT] [FILE…]` (files open as if dropped on the
+//! window; NAME is a sample of `fieldcraft_engine::sample`, `parts` by default)
 //!
-//! `--sample` opens a sample model (`modelcraft_engine::sample`). `--control PORT` (or
-//! `MODELCRAFT_CONTROL_PORT`) starts a localhost JSON-lines control server:
+//! `--sample` opens a sample model (`fieldcraft_engine::sample`). `--control PORT` (or
+//! `FIELDCRAFT_CONTROL_PORT`) starts a localhost JSON-lines control server:
 //! `{"id":1,"method":"engine.execute","params":{"command":"model.info","params":{}}}`. See
-//! `modelcraft_ui_egui::control` and docs/control-protocol.md.
+//! `fieldcraft_ui_egui::control` and docs/control-protocol.md.
 #![cfg_attr(all(target_os = "windows", not(debug_assertions)), windows_subsystem = "windows")]
 #![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
 #![forbid(unsafe_code)]
 
 mod control_server;
 
-use modelcraft_engine::Session;
-use modelcraft_engine::autosave::{self, Autosaver};
-use modelcraft_ui_egui::{Filter, ModelApp, Services};
+use fieldcraft_engine::Session;
+use fieldcraft_engine::autosave::{self, Autosaver};
+use fieldcraft_ui_egui::{Filter, ModelApp, Services};
 
-const USAGE: &str = "usage: modelcraft [--sample [parts|cantilever|impact]] [--control PORT] [FILE…]  (FILE: .modelcraft, .solidcraft or .3mf)";
+const USAGE: &str = "usage: fieldcraft [--sample [parts|cantilever|impact]] [--control PORT] [FILE…]  (FILE: .fieldcraft, .solidcraft or .3mf)";
 const DEPTH_BITS: u8 = 24;
 /// The window draws its own caption buttons where the OS ones would sit apart from the app bar.
 const CUSTOM_TITLEBAR: bool = !cfg!(target_os = "macos");
 const MSAA: u16 = 4;
+/// The reverse-DNS application id: the Wayland app_id / X11 class, matched to the packaged
+/// `.desktop` entry (packaging/linux), and the macOS bundle id (packaging/macos/Info.plist.in).
+const APP_ID: &str = "io.github.jyviko.fieldcraft";
 
 /// The window and Dock icon: the 256 px export of the application icon (assets/app-icon).
 const ICON_PNG: &[u8] = include_bytes!("../../../assets/app-icon/icon.iconset/icon_128x128@2x.png");
@@ -90,7 +93,7 @@ fn services() -> Services {
             dialog(filters).set_file_name(name).save_file().map(|p| p.to_string_lossy().to_string())
         })),
         // Beside the recovery folder in the per-user data folder.
-        recent_path: modelcraft_io::recovery::default_dir().and_then(|d| d.parent().map(|p| p.join("recent.json"))),
+        recent_path: fieldcraft_io::recovery::default_dir().and_then(|d| d.parent().map(|p| p.join("recent.json"))),
     }
 }
 
@@ -111,7 +114,7 @@ fn parse_args(args: impl IntoIterator<Item = String>, env_port: Option<String>)
         match a.as_str() {
             "--sample" => {
                 // An optional sample name follows.
-                let name = args.peek().filter(|a| modelcraft_engine::sample::find(a).is_some()).cloned();
+                let name = args.peek().filter(|a| fieldcraft_engine::sample::find(a).is_some()).cloned();
                 if name.is_some() {
                     args.next();
                 }
@@ -122,7 +125,7 @@ fn parse_args(args: impl IntoIterator<Item = String>, env_port: Option<String>)
                 out.control = Some(port.parse().map_err(|_| format!("--control: `{port}` is not a port number"))?);
             }
             "--version" | "-V" => {
-                println!("modelcraft {}", modelcraft_ui_egui::VERSION);
+                println!("fieldcraft {}", fieldcraft_ui_egui::VERSION);
                 return Ok(None);
             }
             "--help" | "-h" => {
@@ -137,17 +140,18 @@ fn parse_args(args: impl IntoIterator<Item = String>, env_port: Option<String>)
 }
 
 fn main() -> eframe::Result {
-    let args = match parse_args(std::env::args().skip(1), std::env::var("MODELCRAFT_CONTROL_PORT").ok()) {
+    let args = match parse_args(std::env::args().skip(1), std::env::var("FIELDCRAFT_CONTROL_PORT").ok()) {
         Ok(Some(a)) => a,
         Ok(None) => return Ok(()),
         Err(e) => {
-            eprintln!("modelcraft: {e}");
+            eprintln!("fieldcraft: {e}");
             std::process::exit(2);
         }
     };
     let options = eframe::NativeOptions {
         viewport: egui::ViewportBuilder::default()
-            .with_title("ModelCraft")
+            .with_title("FieldCraft")
+            .with_app_id(APP_ID)
             .with_icon(app_icon())
             .with_inner_size([1400.0, 900.0])
             .with_min_inner_size([960.0, 600.0])
@@ -163,7 +167,7 @@ fn main() -> eframe::Result {
         ..Default::default()
     };
     eframe::run_native(
-        "ModelCraft",
+        "FieldCraft",
         options,
         Box::new(move |cc| {
             let mut app = ModelApp::new(Session::default()).with_services(services());
@@ -171,7 +175,7 @@ fn main() -> eframe::Result {
             app.integrated_titlebar = cfg!(target_os = "macos");
             if let Some(rs) = &cc.wgpu_render_state {
                 let info = rs.adapter.get_info();
-                eprintln!("modelcraft: graphics {:?} {}, MSAA {}x (requested {MSAA}x)", info.backend, info.name, rs.msaa_samples);
+                eprintln!("fieldcraft: graphics {:?} {}, MSAA {}x (requested {MSAA}x)", info.backend, info.name, rs.msaa_samples);
                 app.set_wgpu(rs, DEPTH_BITS, rs.msaa_samples, &cc.egui_ctx);
             }
             if let Some(port) = args.control {
@@ -224,9 +228,9 @@ mod tests {
         assert!(parse(&["--control", "99999"], None).is_err());
         assert!(parse(&["--frobnicate"], None).is_err());
         assert_eq!(parse(&["--sample", "impact"], None).map(|a| a.and_then(|a| a.sample)), Ok(Some("impact".into())));
-        let a = parse(&["--sample", "x.modelcraft"], None).unwrap().unwrap();
-        assert_eq!((a.sample.as_deref(), a.files), (Some("parts"), vec!["x.modelcraft".to_string()]));
-        assert_eq!(parse(&["a.modelcraft", "--sample"], None).map(|a| a.map(|a| a.files)), Ok(Some(vec!["a.modelcraft".to_string()])));
+        let a = parse(&["--sample", "x.fieldcraft"], None).unwrap().unwrap();
+        assert_eq!((a.sample.as_deref(), a.files), (Some("parts"), vec!["x.fieldcraft".to_string()]));
+        assert_eq!(parse(&["a.fieldcraft", "--sample"], None).map(|a| a.map(|a| a.files)), Ok(Some(vec!["a.fieldcraft".to_string()])));
         assert_eq!(parse(&["--help"], None), Ok(None));
     }
 }

apps/modelcraft-cli/Cargo.toml

@@ -1,15 +0,0 @@
-[package]
-name = "modelcraft-cli"
-description = "ModelCraft from the command line: list commands, run scripts, serve MCP"
-version.workspace = true
-edition.workspace = true
-license.workspace = true
-
-[lints]
-workspace = true
-
-[dependencies]
-modelcraft-engine = { workspace = true }
-modelcraft-io = { workspace = true }
-modelcraft-mcp = { workspace = true }
-serde_json = { workspace = true }

assets/app-icon/FieldCraft.icon/Assets/01-floor-dark.svg

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <defs>
+    <clipPath id="clip-path-1">
+      <path d="M320 100 L704 100 C854 100 924 170 924 320 L924 704 C924 854 854 924 704 924 L320 924 C170 924 100 854 100 704 L100 320 C100 170 170 100 320 100 Z"/>
+    </clipPath>
+    <radialGradient id="radial-gradient-1" cx="0" cy="0" r="560" gradientTransform="matrix(1 0 0 0.5 512 650)" gradientUnits="userSpaceOnUse">
+      <stop offset="0" stop-color="#4f6a86"/>
+      <stop offset="0.3" stop-color="#4f6a86" stop-opacity="0.9"/>
+      <stop offset="0.65" stop-color="#4f6a86" stop-opacity="0.35"/>
+      <stop offset="1" stop-color="#4f6a86" stop-opacity="0"/>
+    </radialGradient>
+  </defs>
+  <title>FieldCraft icon floor grid (Dark)</title>
+  <g id="Floor_grid" data-name="Floor grid" clip-path="url(#clip-path-1)">
+    <path id="floor_grid" data-name="floor grid" d="M165.59 100 L100 137.87 M858.41 100 L924 137.87 M295.49 100 L100 212.87 M728.51 100 L924 212.87 M425.4 100 L100 287.87 M598.6 100 L924 287.87 M555.3 100 L100 362.87 M468.7 100 L924 362.87 M685.21 100 L100 437.87 M338.79 100 L924 437.87 M815.11 100 L100 512.87 M208.89 100 L924 512.87 M924 112.13 L100 587.87 M100 112.13 L924 587.87 M924 187.13 L100 662.87 M100 187.13 L924 662.87 M924 262.13 L100 737.87 M100 262.13 L924 737.87 M924 337.13 L100 812.87 M100 337.13 L924 812.87 M924 412.13 L100 887.87 M100 412.13 L924 887.87 M924 487.13 L167.32 924 M100 487.13 L856.68 924 M924 562.13 L297.23 924 M100 562.13 L726.77 924 M924 637.13 L427.13 924 M100 637.13 L596.87 924 M924 712.13 L557.03 924 M100 712.13 L466.97 924 M924 787.13 L686.94 924 M100 787.13 L337.06 924 M924 862.13 L816.84 924 M100 862.13 L207.16 924" fill="none" stroke="url(#radial-gradient-1)" stroke-width="3" stroke-linejoin="round"/>
+  </g>
+</svg>

assets/app-icon/FieldCraft.icon/Assets/01-floor.svg

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <defs>
+    <clipPath id="clip-path-1">
+      <path d="M320 100 L704 100 C854 100 924 170 924 320 L924 704 C924 854 854 924 704 924 L320 924 C170 924 100 854 100 704 L100 320 C100 170 170 100 320 100 Z"/>
+    </clipPath>
+    <radialGradient id="radial-gradient-1" cx="0" cy="0" r="560" gradientTransform="matrix(1 0 0 0.5 512 650)" gradientUnits="userSpaceOnUse">
+      <stop offset="0" stop-color="#8aa0b4"/>
+      <stop offset="0.3" stop-color="#8aa0b4" stop-opacity="0.9"/>
+      <stop offset="0.65" stop-color="#8aa0b4" stop-opacity="0.35"/>
+      <stop offset="1" stop-color="#8aa0b4" stop-opacity="0"/>
+    </radialGradient>
+  </defs>
+  <title>FieldCraft icon floor grid</title>
+  <g id="Floor_grid" data-name="Floor grid" clip-path="url(#clip-path-1)">
+    <path id="floor_grid" data-name="floor grid" d="M165.59 100 L100 137.87 M858.41 100 L924 137.87 M295.49 100 L100 212.87 M728.51 100 L924 212.87 M425.4 100 L100 287.87 M598.6 100 L924 287.87 M555.3 100 L100 362.87 M468.7 100 L924 362.87 M685.21 100 L100 437.87 M338.79 100 L924 437.87 M815.11 100 L100 512.87 M208.89 100 L924 512.87 M924 112.13 L100 587.87 M100 112.13 L924 587.87 M924 187.13 L100 662.87 M100 187.13 L924 662.87 M924 262.13 L100 737.87 M100 262.13 L924 737.87 M924 337.13 L100 812.87 M100 337.13 L924 812.87 M924 412.13 L100 887.87 M100 412.13 L924 887.87 M924 487.13 L167.32 924 M100 487.13 L856.68 924 M924 562.13 L297.23 924 M100 562.13 L726.77 924 M924 637.13 L427.13 924 M100 637.13 L596.87 924 M924 712.13 L557.03 924 M100 712.13 L466.97 924 M924 787.13 L686.94 924 M100 787.13 L337.06 924 M924 862.13 L816.84 924 M100 862.13 L207.16 924" fill="none" stroke="url(#radial-gradient-1)" stroke-width="3" stroke-linejoin="round"/>
+  </g>
+</svg>

assets/app-icon/FieldCraft.icon/Assets/02-part.svg

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
+  <defs>
+    <clipPath id="clip-path-1">
+      <path d="M512 200 L764.81 345.96 L512 491.92 L259.19 345.96 Z"/>
+    </clipPath>
+    <clipPath id="clip-path-2">
+      <path d="M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z"/>
+    </clipPath>
+    <clipPath id="clip-path-3">
+      <path d="M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z"/>
+    </clipPath>
+    <clipPath id="clip-path-4">
+      <path d="M512 200 L764.81 345.96 L512 491.92 L259.19 345.96 Z M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z"/>
+    </clipPath>
+  </defs>
+  <title>FieldCraft icon cube</title>
+  <g id="Top_face" data-name="Top face" clip-path="url(#clip-path-1)">
+    <path id="top" d="M512 200 L764.81 345.96 L512 491.92 L259.19 345.96 Z" fill="#2c4fbf"/>
+    <path id="top_band_1" data-name="top band 1" d="M844.55 692 C660.89 798.04 363.11 798.04 179.45 692 C-4.22 585.96 -4.22 414.04 179.45 308 C363.11 201.96 660.89 201.96 844.55 308 C1028.22 414.04 1028.22 585.96 844.55 692 Z" fill="#2f86e0"/>
+    <path id="top_band_2" data-name="top band 2" d="M789.99 660.5 C636.46 749.14 387.54 749.14 234.01 660.5 C80.47 571.86 80.47 428.14 234.01 339.5 C387.54 250.86 636.46 250.86 789.99 339.5 C943.53 428.14 943.53 571.86 789.99 660.5 Z" fill="#22bcd8"/>
+    <path id="top_band_3" data-name="top band 3" d="M738.03 630.5 C613.2 702.57 410.8 702.57 285.97 630.5 C161.13 558.43 161.13 441.57 285.97 369.5 C410.8 297.43 613.2 297.43 738.03 369.5 C862.87 441.57 862.87 558.43 738.03 630.5 Z" fill="#3fc584"/>
+    <path id="top_band_4" data-name="top band 4" d="M686.07 600.5 C589.93 656 434.07 656 337.93 600.5 C241.79 545 241.79 455 337.93 399.5 C434.07 344 589.93 344 686.07 399.5 C782.21 455 782.21 545 686.07 600.5 Z" fill="#f0d13a"/>
+    <path id="top_band_5" data-name="top band 5" d="M634.11 570.5 C566.67 609.44 457.33 609.44 389.89 570.5 C322.45 531.56 322.45 468.44 389.89 429.5 C457.33 390.56 566.67 390.56 634.11 429.5 C701.55 468.44 701.55 531.56 634.11 570.5 Z" fill="#f28a2b"/>
+    <path id="top_band_6" data-name="top band 6" d="M582.15 540.5 C543.41 562.87 480.59 562.87 441.85 540.5 C403.11 518.13 403.11 481.87 441.85 459.5 C480.59 437.13 543.41 437.13 582.15 459.5 C620.89 481.87 620.89 518.13 582.15 540.5 Z" fill="#de3b2f"/>
+    <path id="top_shade" data-name="top shade" d="M512 200 L764.81 345.96 L512 491.92 L259.19 345.96 Z" fill="#ffffff" opacity="0.1"/>
+  </g>
+  <g id="Left_face" data-name="Left face" clip-path="url(#clip-path-2)">
+    <path id="left" d="M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z" fill="#2c4fbf"/>
+    <path id="left_band_1" data-name="left band 1" d="M844.55 692 C844.55 479.92 695.66 222.04 512 116 C328.34 9.96 179.45 95.92 179.45 308 C179.45 520.08 328.34 777.96 512 884 C695.66 990.04 844.55 904.08 844.55 692 Z" fill="#2f86e0"/>
+    <path id="left_band_2" data-name="left band 2" d="M789.99 660.5 C789.99 483.22 665.53 267.64 512 179 C358.47 90.36 234.01 162.22 234.01 339.5 C234.01 516.78 358.47 732.36 512 821 C665.53 909.64 789.99 837.78 789.99 660.5 Z" fill="#22bcd8"/>
+    <path id="left_band_3" data-name="left band 3" d="M738.03 630.5 C738.03 486.35 636.83 311.07 512 239 C387.17 166.93 285.97 225.35 285.97 369.5 C285.97 513.65 387.17 688.93 512 761 C636.83 833.07 738.03 774.65 738.03 630.5 Z" fill="#3fc584"/>
+    <path id="left_band_4" data-name="left band 4" d="M686.07 600.5 C686.07 489.49 608.14 354.5 512 299 C415.86 243.5 337.93 288.49 337.93 399.5 C337.93 510.51 415.86 645.5 512 701 C608.14 756.5 686.07 711.51 686.07 600.5 Z" fill="#f0d13a"/>
+    <path id="left_band_5" data-name="left band 5" d="M634.11 570.5 C634.11 492.63 579.44 397.94 512 359 C444.56 320.06 389.89 351.63 389.89 429.5 C389.89 507.37 444.56 602.06 512 641 C579.44 679.94 634.11 648.37 634.11 570.5 Z" fill="#f28a2b"/>
+    <path id="left_band_6" data-name="left band 6" d="M582.15 540.5 C582.15 495.76 550.74 441.37 512 419 C473.26 396.63 441.85 414.76 441.85 459.5 C441.85 504.24 473.26 558.63 512 581 C550.74 603.37 582.15 585.24 582.15 540.5 Z" fill="#de3b2f"/>
+    <path id="left_shade" data-name="left shade" d="M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z" fill="#000000" opacity="0.12"/>
+  </g>
+  <g id="Right_face" data-name="Right face" clip-path="url(#clip-path-3)">
+    <path id="right" d="M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z" fill="#2c4fbf"/>
+    <path id="right_band_1" data-name="right band 1" d="M179.45 692 C179.45 479.92 328.34 222.04 512 116 C695.66 9.96 844.55 95.92 844.55 308 C844.55 520.08 695.66 777.96 512 884 C328.34 990.04 179.45 904.08 179.45 692 Z" fill="#2f86e0"/>
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+    <path id="right_band_3" data-name="right band 3" d="M285.97 630.5 C285.97 486.35 387.17 311.07 512 239 C636.83 166.93 738.03 225.35 738.03 369.5 C738.03 513.65 636.83 688.93 512 761 C387.17 833.07 285.97 774.65 285.97 630.5 Z" fill="#3fc584"/>
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+    <path id="right_shade" data-name="right shade" d="M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z" fill="#000000" opacity="0.3"/>
+  </g>
+  <g id="Mesh" clip-path="url(#clip-path-4)">
+    <path id="hexahedral_mesh" data-name="hexahedral mesh" d="M576.95 237.5 L317.14 387.5 M447.05 237.5 L706.86 387.5 M317.14 687.5 L317.14 387.5 M252.19 575 L512 725 M706.86 687.5 L706.86 387.5 M771.81 575 L512 725 M641.9 275 L382.1 425 M382.1 275 L641.9 425 M382.1 725 L382.1 425 M252.19 500 L512 650 M641.9 725 L641.9 425 M771.81 500 L512 650 M706.86 312.5 L447.05 462.5 M317.14 312.5 L576.95 462.5 M447.05 762.5 L447.05 462.5 M252.19 425 L512 575 M576.95 762.5 L576.95 462.5 M771.81 425 L512 575" fill="none" stroke="#0b2236" stroke-width="3.5" stroke-linejoin="round" opacity="0.45"/>
+  </g>
+</svg>

assets/app-icon/FieldCraft.icon/icon.json

@@ -1,37 +1,6 @@
 {
   "fill": "system-light",
   "groups": [
-    {
-      "layers": [
-        {
-          "glass-specializations": [
-            {
-              "appearance": "tinted",
-              "value": true
-            }
-          ],
-          "image-name": "03-mesh.svg",
-          "name": "03-mesh",
-          "position": {
-            "scale": 0.9,
-            "translation-in-points": [
-              0,
-              0
-            ]
-          }
-        }
-      ],
-      "name": "03 Mesh",
-      "shadow": {
-        "kind": "none",
-        "opacity": 0
-      },
-      "specular": false,
-      "translucency": {
-        "enabled": false,
-        "value": 0.3
-      }
-    },
     {
       "layers": [
         {

assets/app-icon/ModelCraft.icon/Assets/01-floor-dark.svg

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
-  <defs>
-    <clipPath id="clip-path-1">
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-      <stop offset="1" stop-color="#4f8a82" stop-opacity="0"/>
-    </radialGradient>
-  </defs>
-  <title>ModelCraft icon floor grid (Dark)</title>
-  <g id="Floor_grid" data-name="Floor grid" clip-path="url(#clip-path-1)">
-    <path id="floor_grid" data-name="floor grid" d="M154.62 100 L100 131.53 M869.38 100 L924 131.53 M368.82 100 L100 255.2 M655.18 100 L924 255.2 M583.01 100 L100 378.87 M440.99 100 L924 378.87 M797.21 100 L100 502.53 M226.79 100 L924 502.53 M924 150.47 L100 626.2 M100 150.47 L924 626.2 M924 274.13 L100 749.87 M100 274.13 L924 749.87 M924 397.8 L100 873.53 M100 397.8 L924 873.53 M924 521.47 L226.79 924 M100 521.47 L797.21 924 M924 645.13 L440.99 924 M100 645.13 L583.01 924 M924 768.8 L655.18 924 M100 768.8 L368.82 924 M924 892.47 L869.38 924 M100 892.47 L154.62 924" fill="none" stroke="url(#radial-gradient-1)" stroke-width="3" stroke-linejoin="round"/>
-  </g>
-</svg>

assets/app-icon/ModelCraft.icon/Assets/01-floor.svg

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
-  <defs>
-    <clipPath id="clip-path-1">
-      <path d="M320 100 L704 100 C854 100 924 170 924 320 L924 704 C924 854 854 924 704 924 L320 924 C170 924 100 854 100 704 L100 320 C100 170 170 100 320 100 Z"/>
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-      <stop offset="0.3" stop-color="#7fa8a2" stop-opacity="0.9"/>
-      <stop offset="0.65" stop-color="#7fa8a2" stop-opacity="0.35"/>
-      <stop offset="1" stop-color="#7fa8a2" stop-opacity="0"/>
-    </radialGradient>
-  </defs>
-  <title>ModelCraft icon floor grid</title>
-  <g id="Floor_grid" data-name="Floor grid" clip-path="url(#clip-path-1)">
-    <path id="floor_grid" data-name="floor grid" d="M154.62 100 L100 131.53 M869.38 100 L924 131.53 M368.82 100 L100 255.2 M655.18 100 L924 255.2 M583.01 100 L100 378.87 M440.99 100 L924 378.87 M797.21 100 L100 502.53 M226.79 100 L924 502.53 M924 150.47 L100 626.2 M100 150.47 L924 626.2 M924 274.13 L100 749.87 M100 274.13 L924 749.87 M924 397.8 L100 873.53 M100 397.8 L924 873.53 M924 521.47 L226.79 924 M100 521.47 L797.21 924 M924 645.13 L440.99 924 M100 645.13 L583.01 924 M924 768.8 L655.18 924 M100 768.8 L368.82 924 M924 892.47 L869.38 924 M100 892.47 L154.62 924" fill="none" stroke="url(#radial-gradient-1)" stroke-width="3" stroke-linejoin="round"/>
-  </g>
-</svg>

assets/app-icon/ModelCraft.icon/Assets/02-part.svg

@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
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-      <stop offset="0" stop-color="#0b665e"/>
-      <stop offset="1" stop-color="#04302c"/>
-    </linearGradient>
-  </defs>
-  <title>ModelCraft icon part</title>
-  <g id="Part">
-    <path id="wall_top" data-name="wall top" d="M512 141 L825.3 321.88 L730.48 376.62 L417.19 195.74 Z" fill="url(#linear-gradient-1)"/>
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-    <path id="wall_front" data-name="wall front" d="M409.19 209.6 L722.48 390.48 L722.48 624.28 L409.19 443.4 Z" fill="url(#linear-gradient-3)"/>
-    <path id="base_front" data-name="base front" d="M190.7 588.02 L504 768.9 L504 878.38 L190.7 697.5 Z" fill="url(#linear-gradient-4)"/>
-    <path id="end" d="M833.3 697.5 L520 878.38 L520 768.9 L738.48 642.76 L738.48 390.48 L833.3 335.74 Z" fill="url(#linear-gradient-5)"/>
-    <path id="bolt_hole" data-name="bolt hole" d="M521.64 643.71 C487.92 663.17 433.26 663.17 399.55 643.71 C365.83 624.24 365.83 592.68 399.55 573.22 C433.26 553.75 487.92 553.75 521.64 573.22 C555.35 592.68 555.35 624.24 521.64 643.71 Z" fill="url(#linear-gradient-6)"/>
-  </g>
-</svg>

assets/app-icon/ModelCraft.icon/Assets/03-mesh.svg

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
-  <defs>
-    <clipPath id="clip-path-1">
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-    </clipPath>
-  </defs>
-  <title>ModelCraft icon mesh</title>
-  <g id="Mesh" clip-path="url(#clip-path-1)">
-    <path id="hexahedral_mesh" data-name="hexahedral mesh" d="M460.59 482.32 L242.11 608.46 M679.07 608.46 L460.59 734.6 M354.57 484.18 L405.97 513.86 M624.45 640 L675.86 669.67 M299.95 515.71 L351.35 545.39 M569.83 671.53 L621.24 701.21 M245.32 547.25 L296.73 576.92 M515.21 703.07 L566.62 732.75 M460.59 482.32 L460.59 230.04 M563.41 170.68 L460.59 230.04 M515.21 513.86 L515.21 261.57 M618.03 202.22 L515.21 261.57 M569.83 545.39 L569.83 293.11 M672.65 233.75 L569.83 293.11 M624.45 576.93 L624.45 324.65 M727.27 265.29 L624.45 324.65 M679.07 608.46 L679.07 356.18 M781.89 296.82 L679.07 356.18 M409.19 389.57 L730.48 575.07 M409.19 326.5 L730.48 512 M409.19 263.43 L730.48 448.93 M460.59 170.68 L781.89 356.18 M242.11 727.18 L242.11 608.46 M296.73 758.72 L296.73 640 M351.35 790.25 L351.35 671.53 M405.97 821.79 L405.97 703.07 M460.59 853.32 L460.59 734.6 M190.7 638.14 L512 823.64 M781.89 727.18 L781.89 356.18 M730.48 756.86 L730.48 638.14 M675.86 788.39 L675.86 669.67 M621.24 819.93 L621.24 701.21 M566.62 851.47 L566.62 732.75 M833.3 638.14 L512 823.64 M833.3 578.78 L730.48 638.14 M833.3 515.71 L730.48 575.07 M833.3 452.64 L730.48 512 M833.3 389.57 L730.48 448.93 M460.59 558.62 L460.59 482.32 M433.29 561.17 L405.97 513.86 M399.55 573.22 L351.35 545.39 M378.69 592.7 L296.73 576.92 M374.26 608.46 L242.11 608.46 M487.89 561.17 L515.21 513.86 M378.69 624.22 L296.73 640 M521.64 573.22 L569.83 545.39 M399.55 643.71 L351.35 671.53 M542.49 592.7 L624.45 576.92 M433.29 655.75 L405.97 703.06 M546.92 608.46 L679.07 608.46 M542.49 624.22 L624.45 640 M521.64 643.71 L569.83 671.53 M487.89 655.75 L515.21 703.07 M460.59 658.3 L460.59 734.6 M545.74 657.62 L540.09 660.8 L534.3 663.92 L528.33 666.99 L522.16 670.03 L515.76 673.05 L509.11 676.08 L502.15 679.15 L494.85 682.27 L487.14 685.51 L478.94 688.9 L470.14 692.52 L460.59 696.45 L451.05 692.52 L442.25 688.9 L434.05 685.51 L426.34 682.27 L419.03 679.15 L412.08 676.08 L405.42 673.05 L399.02 670.03 L392.86 666.99 L386.89 663.92 L381.09 660.8 L375.45 657.62 L369.94 654.36 L364.54 651.01 L359.22 647.57 L353.95 644.01 L348.72 640.31 L343.47 636.47 L338.16 632.45 L332.74 628.24 L327.14 623.79 L321.26 619.05 L315 613.97 L308.19 608.46 L315 602.95 L321.26 597.87 L327.14 593.13 L332.74 588.68 L338.16 584.47 L343.47 580.45 L348.72 576.61 L353.95 572.91 L359.22 569.35 L364.54 565.91 L369.94 562.56 L375.45 559.3 L381.09 556.12 L386.89 553 L392.86 549.93 L399.02 546.89 L405.42 543.87 L412.08 540.84 L419.03 537.77 L426.34 534.65 L434.05 531.41 L442.25 528.02 L451.05 524.4 L460.59 520.47 L470.14 524.4 L478.94 528.02 L487.14 531.41 L494.85 534.65 L502.15 537.77 L509.11 540.84 L515.76 543.87 L522.16 546.89 L528.33 549.93 L534.3 553 L540.09 556.12 L545.74 559.3 L551.25 562.56 L556.65 565.91 L561.97 569.35 L567.23 572.91 L572.47 576.61 L577.72 580.45 L583.02 584.47 L588.44 588.68 L594.05 593.13 L599.92 597.87 L606.19 602.95 L613 608.46 L606.19 613.97 L599.92 619.05 L594.05 623.79 L588.44 628.24 L583.02 632.45 L577.72 636.47 L572.47 640.31 L567.23 644.01 L561.97 647.57 L556.65 651.01 L551.25 654.36 Z" fill="none" stroke="#ffffff" stroke-width="4.5" stroke-linejoin="round" opacity="0.5"/>
-  </g>
-</svg>

assets/app-icon/README.md

@@ -1,10 +1,11 @@
-# ModelCraft application icon
+# FieldCraft application icon
 
-ModelCraft's mark is an L-shaped bracket with a bolt hole, drawn in isometric view and covered
-by a structured hexahedral mesh with an O-grid around the hole. Its faces are separated by
+FieldCraft's mark is a cube in isometric view, covered by a structured hexahedral mesh, whose
+faces carry a banded colour fringe (blue to red, hottest at the front corner) as a stress or
+temperature result would. Its faces are separated by
 transparent gaps rather than painted edge lines, so the backdrop shows through them in every
 appearance. It is original artwork, attributed in `ATTRIBUTION.md`, and shares the Craft
-family's layout (rounded-square backdrop, isometric floor grid, lit top faces) in its own teal.
+family's layout (rounded-square backdrop, isometric floor grid, lit top faces).
 
 Everything here is generated by `cargo xtask app-icon` (`xtask/src/app_icon.rs`), which computes
 the geometry and draws it with VectorCraft's command-line tool (`VECTORCRAFT_CLI`, else
@@ -14,14 +15,16 @@ hand. It runs on macOS (sips, iconutil, `xcrun actool`) with ImageMagick (`magic
 | File | What it is |
 |---|---|
 | `icon.vectorcraft`, `icon.svg`, `icon.png` | The full icon on its backdrop, 1024 × 1024 |
-| `icon-small.vectorcraft`, `icon-small.svg`, `icon-small.png` | Small-size artwork used at 16–32 px: no mesh or floor grid, faces edge to edge |
+| `icon-small.vectorcraft`, `icon-small.svg`, `icon-small.png` | Small-size artwork used at 16–32 px: the fringe cube alone, no mesh or floor grid, faces edge to edge |
 | `icon.iconset/`, `icon.icns` | macOS iconset (sips) and its iconutil compilation |
 | `icon.ico` | Windows icon, 16–256 px |
-| `ModelCraft.icon/` | Icon Composer document: floor grid (Default and Dark), part and mesh layers, each scaled to 90% |
+| `FieldCraft.icon/` | Icon Composer document: floor grid (Default and Dark), and cube (faces and mesh) layers, each scaled to 90% |
 | `layers/*.vectorcraft` | Editable sources of the Icon Composer layers |
-| `Assets.car` | `actool` compilation of `ModelCraft.icon` for macOS 26 and later (needs Xcode 26 or later; the task skips it with a note otherwise) |
+| `Assets.car` | `actool` compilation of `FieldCraft.icon` for macOS 26 and later (needs Xcode 26 or later; the task skips it with a note otherwise) |
 
 The desktop app embeds `icon.iconset/icon_128x128@2x.png` as its window and Dock icon
-(`apps/modelcraft/src/main.rs`). There is no macOS bundle yet; packaging will copy
-`Assets.car` and `icon.icns` into `Contents/Resources` and name `ModelCraft` in
-`CFBundleIconName` / `CFBundleIconFile`.
+(`apps/fieldcraft/src/main.rs`). The release packages (docs/releasing.md) use the rest:
+`packaging/macos/package.sh` copies `Assets.car` and `icon.icns` (as `FieldCraft.icns`) into
+`FieldCraft.app/Contents/Resources`, named by `CFBundleIconName` / `CFBundleIconFile`;
+`apps/fieldcraft/build.rs` embeds `icon.ico` in `fieldcraft.exe`; and
+`packaging/linux/package.sh` installs the iconset PNGs as the hicolor icons.

assets/app-icon/icon-small.svg

@@ -1,48 +1,55 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1024" height="1024" viewBox="0 0 1024 1024">
   <defs>
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+    <filter id="filter-1" filterUnits="userSpaceOnUse" x="67" y="67" width="890" height="890" data-vc-blend="multiply" color-interpolation-filters="sRGB"><feGaussianBlur in="SourceAlpha" stdDeviation="7"/><feOffset dx="0" dy="10" result="shadow"/><feFlood flood-color="#1d2b3b" flood-opacity="0.22"/><feComposite in2="shadow" operator="in" result="paint"/><feMerge><feMergeNode in="paint"/><feMergeNode in="SourceGraphic"/></feMerge></filter>
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-      <stop offset="0" stop-color="#0b665e"/>
-      <stop offset="1" stop-color="#04302c"/>
+      <stop offset="0" stop-color="#fbfcfe"/>
+      <stop offset="1" stop-color="#dce3ec"/>
     </linearGradient>
+    <clipPath id="clip-path-1">
+      <path d="M512 200 L771.81 350 L512 500 L252.19 350 Z"/>
+    </clipPath>
+    <clipPath id="clip-path-2">
+      <path d="M252.19 350 L512 500 L512 800 L252.19 650 Z"/>
+    </clipPath>
+    <clipPath id="clip-path-3">
+      <path d="M771.81 650 L512 800 L512 500 L771.81 350 Z"/>
+    </clipPath>
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-  <title>ModelCraft application icon, small sizes</title>
+  <title>FieldCraft application icon, small sizes</title>
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assets/app-icon/icon.svg

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+    <clipPath id="clip-path-4">
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+  <title>FieldCraft application icon</title>
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+  <g id="Left_face" data-name="Left face" clip-path="url(#clip-path-3)">
+    <path id="left" d="M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z" fill="#2c4fbf"/>
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+    <path id="left_shade" data-name="left shade" d="M252.19 358.08 L505 504.04 L505 795.96 L252.19 650 Z" fill="#000000" opacity="0.12"/>
+  </g>
+  <g id="Right_face" data-name="Right face" clip-path="url(#clip-path-4)">
+    <path id="right" d="M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z" fill="#2c4fbf"/>
+    <path id="right_band_1" data-name="right band 1" d="M179.45 692 C179.45 479.92 328.34 222.04 512 116 C695.66 9.96 844.55 95.92 844.55 308 C844.55 520.08 695.66 777.96 512 884 C328.34 990.04 179.45 904.08 179.45 692 Z" fill="#2f86e0"/>
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+    <path id="right_shade" data-name="right shade" d="M771.81 650 L519 795.96 L519 504.04 L771.81 358.08 Z" fill="#000000" opacity="0.3"/>
+  </g>
+  <g id="Mesh" clip-path="url(#clip-path-5)">
+    <path id="hexahedral_mesh" data-name="hexahedral mesh" d="M576.95 237.5 L317.14 387.5 M447.05 237.5 L706.86 387.5 M317.14 687.5 L317.14 387.5 M252.19 575 L512 725 M706.86 687.5 L706.86 387.5 M771.81 575 L512 725 M641.9 275 L382.1 425 M382.1 275 L641.9 425 M382.1 725 L382.1 425 M252.19 500 L512 650 M641.9 725 L641.9 425 M771.81 500 L512 650 M706.86 312.5 L447.05 462.5 M317.14 312.5 L576.95 462.5 M447.05 762.5 L447.05 462.5 M252.19 425 L512 575 M576.95 762.5 L576.95 462.5 M771.81 425 L512 575" fill="none" stroke="#0b2236" stroke-width="3.5" stroke-linejoin="round" opacity="0.45"/>
   </g>
 </svg>

assets/icons/mesh.hex.blocks.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24">
+  <title>mesh.hex.blocks</title>
+  <g id="Layer_1" data-name="Layer 1">
+    <path d="M12 3 L20 7 L20 16 L12 20 L4 16 L4 7 Z" fill="#2d4e70" stroke="#dde2ea" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+    <path d="M4 7 L12 11 L20 7 M12 11 L12 20" fill="none" stroke="#dde2ea" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+    <path d="M6 8 L6 17 M10 10 L10 19 M4 9.25 L12 13.25 M4 13.75 L12 17.75 M14 10 L14 19 M18 8 L18 17 M12 13.25 L20 9.25 M12 17.75 L20 13.75 M6 6 L14 10 M10 4 L18 8 M14 4 L6 8 M18 6 L10 10" fill="none" stroke="#4f9ce8" stroke-linecap="round" stroke-linejoin="round"/>
+    <path d="M8 5 L16 9 M16 5 L8 9 M8 9 L8 18 M4 11.5 L12 15.5 M16 9 L16 18 M12 15.5 L20 11.5" fill="none" stroke="#dde2ea" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+  </g>
+</svg>

assets/icons/mesh.hex.octree.svg

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24">
-  <title>mesh.hex.generate</title>
+  <title>mesh.hex.octree</title>
   <g id="Layer_1" data-name="Layer 1">
     <path d="M3 3 L21 3 L21 21 L3 21 Z" fill="#2d4e70" stroke="#dde2ea" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
     <path d="M12 3 L12 21 M3 12 L21 12" fill="none" stroke="#dde2ea" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>

assets/icons/src/mesh.hex.blocks.json

@@ -0,0 +1 @@
+{"shapes": [{"d": "M12 3 L20 7 L20 16 L12 20 L4 16 L4 7 Z", "fill": "soft", "stroke": "line"}, {"d": "M4 7 L12 11 L20 7 M12 11 L12 20", "stroke": "line"}, {"d": "M6 8 L6 17 M10 10 L10 19 M4 9.25 L12 13.25 M4 13.75 L12 17.75 M14 10 L14 19 M18 8 L18 17 M12 13.25 L20 9.25 M12 17.75 L20 13.75 M6 6 L14 10 M10 4 L18 8 M14 4 L6 8 M18 6 L10 10", "stroke": "accent", "width": 1}, {"d": "M8 5 L16 9 M16 5 L8 9 M8 9 L8 18 M4 11.5 L12 15.5 M16 9 L16 18 M12 15.5 L20 11.5", "stroke": "line", "width": 1.5}]}

crates/decks/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "modelcraft-decks"
-description = "ModelCraft's solver decks: Abaqus input, Nastran bulk data and LS-DYNA keyword writers (and later readers)"
+name = "fieldcraft-decks"
+description = "FieldCraft's solver decks: Abaqus input, Nastran bulk data and LS-DYNA keyword writers (and later readers)"
 version.workspace = true
 edition.workspace = true
 license.workspace = true
@@ -9,7 +9,7 @@ license.workspace = true
 workspace = true
 
 [dependencies]
-modelcraft-model = { workspace = true }
+fieldcraft-model = { workspace = true }
 thiserror = { workspace = true }
 
 [dev-dependencies]

crates/decks/src/abaqus.rs

@@ -6,7 +6,7 @@
 //! # Layout
 //!
 //! The deck is *flat*: nodes, elements, sets, materials, sections and couplings sit at model level,
-//! with no parts, assembly or instances. ModelCraft has one mesh with model-wide labels and no
+//! with no parts, assembly or instances. FieldCraft has one mesh with model-wide labels and no
 //! instance transforms, so a part/assembly wrapper would only prefix every set name with an
 //! instance name (`Part-1-1.root`) and bring the 80-character limit on the joined name closer. When
 //! the model gains several parts or instances the writer switches to the part/assembly form.
@@ -30,7 +30,17 @@
 //! - a frequency step is a perturbation of the last general step: its boundary conditions are
 //!   written against that base state and do not carry on to later steps; loads have no effect on
 //!   natural frequencies and are not written in it;
-//! - every step restates its output request (`*OUTPUT, FIELD, OP=NEW`).
+//! - every step restates its output request (`*OUTPUT, FIELD, OP=NEW`);
+//! - a nonlinear static step is `*STEP, NLGEOM=YES` (or `NO` without nonlinear geometry) with
+//!   `INC=` its increment cap, `*STATIC` with its initial, minimum and maximum increments over a
+//!   step period of 1, and `*CONTROLS, PARAMETERS=LINE SEARCH` when it searches; its iteration cap
+//!   and tolerances are left to Abaqus's controls, whose residual norms are defined differently.
+//!   Abaqus starts each general step from the end of the previous one, while every model step
+//!   starts from the undeformed state; for elastic materials the end state depends on the final
+//!   loads alone, so the two agree. A plastic material's state depends on the path, so a deck
+//!   with nonlinear steps, a plastic material and more than one general step is refused, as is
+//!   a nonlinear step's load path (an amplitude on every load and boundary condition, not
+//!   written yet).
 //!
 //! # Loads
 //!
@@ -53,7 +63,7 @@
 //!
 //! # Element types
 //!
-//! | ModelCraft | Solid section | Shell section | Beam | Rod |
+//! | FieldCraft | Solid section | Shell section | Beam | Rod |
 //! |---|---|---|---|---|
 //! | tet4 | C3D4 (H) | | | |
 //! | tet10 | C3D10 (H) | | | |
@@ -76,7 +86,7 @@
 //! differs by direction and a spring along a skew fixed vector are reported (they need a local
 //! orientation, not written yet).
 //!
-//! | ModelCraft | Plane stress | Plane strain | Axisymmetric |
+//! | FieldCraft | Plane stress | Plane strain | Axisymmetric |
 //! |---|---|---|---|
 //! | tri3 | CPS3 | CPE3 | CAX3 |
 //! | tri6 | CPS6 | CPE6 | CAX6 |
@@ -96,7 +106,11 @@
 //!
 //! # Materials
 //!
-//! Isotropic elasticity is `*ELASTIC, TYPE=ISOTROPIC`, engineering constants
+//! Isotropic elasticity is `*ELASTIC, TYPE=ISOTROPIC` (or, for a neo-Hookean material in a deck
+//! with nonlinear steps, `*HYPERELASTIC, NEO HOOKE` with C₁₀ = μ/2 and D₁ = 2/κ, the same strain
+//! energy, and likewise `MOONEY-RIVLIN` (C₁₀, C₀₁, D₁) and `YEOH` (C₁₀, C₂₀, C₃₀, D₁, the higher
+//! volumetric terms zero); a linear static step is then refused, since Abaqus's general static step would apply
+//! the hyperelastic law), engineering constants
 //! `TYPE=ENGINEERING CONSTANTS`, density `*DENSITY`. Von Mises plasticity is `*PLASTIC`: a
 //! hardening table as its (yield stress, plastic strain) lines; bilinear isotropic hardening as
 //! two lines, the second at a plastic strain of [`BILINEAR_REACH`] (Abaqus holds the last yield
@@ -115,9 +129,9 @@
 use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::Write as _;
 
-use modelcraft_model::{
-    BeamProfile, BoundaryCondition, CouplingKind, Elastic, Element, ElementKind, Hardening, Integration, Load, Model, OutputVariable, Plastic,
-    Procedure, Resolved, Section, SectionKind, Step, Symmetry, Target,
+use fieldcraft_model::{
+    BeamProfile, BoundaryCondition, CouplingKind, Elastic, Element, ElementKind, Hardening, Hyperelastic, Integration, Load, Model, OutputVariable,
+    Plastic, Procedure, Resolved, Section, SectionKind, Step, Symmetry, Target,
 };
 
 use crate::{Error, Result, unsupported};
@@ -219,6 +233,12 @@ pub fn element_type(kind: ElementKind, section: &Section) -> std::result::Result
     Ok(if f.hybrid { format!("{plain}H") } else { plain.to_string() })
 }
 
+/// Whether the model has a nonlinear static step: hyperelastic materials are then written as
+/// `*HYPERELASTIC` (in a deck of linear steps their elastic constants are the whole of it).
+fn has_nonlinear_step(model: &Model) -> bool {
+    model.steps().iter().any(|s| matches!(s.procedure, Procedure::NonlinearStatic(_)))
+}
+
 /// Every element, grouped by element type (from its section) and sorted by label.
 fn elements_by_type<'m>(model: &'m Model, r: &Resolved) -> Result<BTreeMap<String, Vec<(u32, &'m Element)>>> {
     let mut by_type: BTreeMap<String, Vec<(u32, &Element)>> = BTreeMap::new();
@@ -287,6 +307,37 @@ fn check_expressible(model: &Model) -> Result<()> {
     for step in model.steps().iter().filter(|s| matches!(s.procedure, Procedure::ExplicitDynamic(_))) {
         bad.insert(format!("step `{}`: explicit dynamic steps (not written to Abaqus input yet)", step.name));
     }
+    if has_nonlinear_step(model)
+        && let Some(material) = model.hyperelastic_in_use().into_iter().next()
+    {
+        for step in model.steps().iter().filter(|s| matches!(s.procedure, Procedure::Static {})) {
+            bad.insert(format!(
+                "step `{}`: a linear static step beside nonlinear steps of hyperelastic material `{material}` (Abaqus's general static step applies the hyperelastic law; write the linear step to its own deck)",
+                step.name
+            ));
+        }
+    }
+    for step in model.steps() {
+        if let Procedure::NonlinearStatic(n) = &step.procedure
+            && n.load_path.is_some()
+        {
+            bad.insert(format!(
+                "step `{}`: a load path (it would be an amplitude on every load and boundary condition of the step; not written yet)",
+                step.name
+            ));
+        }
+    }
+    let general = model.steps().iter().filter(|s| matches!(s.procedure, Procedure::Static {} | Procedure::NonlinearStatic(_))).count();
+    let plastic_in_use = model.sections().values().find(|s| model.material(&s.material).is_some_and(|m| m.plastic.is_some()));
+    if has_nonlinear_step(model)
+        && general > 1
+        && let Some(section) = plastic_in_use
+    {
+        bad.insert(format!(
+            "plastic material `{}` in a deck of {general} general steps (Abaqus carries the plastic state from one general step to the next, while every model step starts from the undeformed state; write each step to its own deck)",
+            section.material
+        ));
+    }
     for (name, m) in model.materials() {
         if m.damage.is_some() || m.erosion.is_some() {
             bad.insert(format!(
@@ -330,10 +381,10 @@ fn discrete_groups<'r>(model: &Model, r: &'r Resolved) -> Result<Vec<DiscreteGro
     let mut next = model.elements().keys().next_back().map_or(1, |l| l.saturating_add(1));
     let mut label = || -> Result<u32> {
         let l = next;
-        if l > modelcraft_model::MAX_LABEL {
+        if l > fieldcraft_model::MAX_LABEL {
             return Err(Error::Limit(format!(
                 "no element label left below {} for point masses, springs and dashpots",
-                modelcraft_model::MAX_LABEL as u64 + 1
+                fieldcraft_model::MAX_LABEL as u64 + 1
             )));
         }
         next += 1;
@@ -371,7 +422,7 @@ fn discrete_groups<'r>(model: &Model, r: &'r Resolved) -> Result<Vec<DiscreteGro
     }
     for s in &r.springs {
         let what = s.kind();
-        let line = matches!(s.direction, modelcraft_model::ResolvedDirection::Line(_));
+        let line = matches!(s.direction, fieldcraft_model::ResolvedDirection::Line(_));
         let (element_type, dofs, nodes) = match (s.second, crate::axis_dof(s.direction), line) {
             (Some(b), _, true) => (if s.dashpot { "DASHPOTA" } else { "SPRINGA" }, String::new(), vec![s.first, b]),
             (Some(b), Some(d), false) => (if s.dashpot { "DASHPOT2" } else { "SPRING2" }, format!("{d}, {d}"), vec![s.first, b]),
@@ -556,7 +607,7 @@ impl<'a> StepLoads<'a> {
     /// `everything` is every element and the section sets that hold them (gravity on the whole
     /// model).
     fn new(model: &'a Model, r: &'a Resolved, step: &'a Step, everything: &'a (Vec<&'a str>, Vec<u32>)) -> StepLoads<'a> {
-        let axisymmetric = r.extent() == Some(modelcraft_model::Extent::Revolved);
+        let axisymmetric = r.extent() == Some(fieldcraft_model::Extent::Revolved);
         let mut s = StepLoads { concentrated: crate::concentrated_loads(model, r, &step.loads), axisymmetric, ..StepLoads::default() };
         let (mut gravity, mut body) = (Vec::new(), Vec::new());
         for name in &step.loads {
@@ -637,8 +688,8 @@ impl Deck {
             None => "units not specified".to_string(),
         };
         self.line("*HEADING");
-        self.line(&format!("ModelCraft model, {units}"));
-        self.comment("Written by ModelCraft. The numbers are in one consistent unit system and are not converted.");
+        self.line(&format!("FieldCraft model, {units}"));
+        self.comment("Written by FieldCraft. The numbers are in one consistent unit system and are not converted.");
     }
 
     fn nodes(&mut self, model: &Model) -> Result<()> {
@@ -759,6 +810,21 @@ impl Deck {
         for (name, m) in model.materials() {
             self.line(&format!("*MATERIAL, NAME={name}"));
             match m.elastic {
+                Some(Elastic::Isotropic { young, poisson })
+                    if has_nonlinear_step(model)
+                        && let Some(h) = m.hyperelastic =>
+                {
+                    // The polynomial constants of the option and U = (J − 1)²/D1 with D1 = 2/κ.
+                    let (shear, bulk) = Hyperelastic::moduli(young, poisson);
+                    let [c10, c01, c20, c30] = h.constants(shear);
+                    let (keyword, values) = match h {
+                        Hyperelastic::NeoHookean {} => ("NEO HOOKE", vec![c10, 2.0 / bulk]),
+                        Hyperelastic::MooneyRivlin { .. } => ("MOONEY-RIVLIN", vec![c10, c01, 2.0 / bulk]),
+                        Hyperelastic::Yeoh { .. } => ("YEOH", vec![c10, c20, c30, 2.0 / bulk]),
+                    };
+                    self.line(&format!("*HYPERELASTIC, {keyword}"));
+                    self.numbers_line("", &values)?;
+                }
                 Some(Elastic::Isotropic { young, poisson }) => {
                     self.line("*ELASTIC, TYPE=ISOTROPIC");
                     self.numbers_line("", &[young, poisson])?;
@@ -1038,10 +1104,22 @@ impl Deck {
             self.comment(&format!("Step {}", step.name));
             match step.procedure {
                 Procedure::Fluid { .. } => return Err(crate::fluid_step(FORMAT, &step.name)),
-                Procedure::Static {} => {
-                    self.line(&format!("*STEP, NAME={}, NLGEOM=NO", step.name));
-                    self.line("*STATIC");
-                    self.line("1.0, 1.0");
+                Procedure::Static {} | Procedure::NonlinearStatic(_) => {
+                    if let Procedure::NonlinearStatic(n) = &step.procedure {
+                        let nlgeom = if n.nonlinear_geometry { "YES" } else { "NO" };
+                        self.line(&format!("*STEP, NAME={}, NLGEOM={nlgeom}, INC={}", step.name, n.max_increments));
+                        self.line("*STATIC");
+                        self.numbers_line("", &[n.initial_increment, 1.0, n.min_increment, n.max_increment])?;
+                        if n.line_search {
+                            self.line("*CONTROLS, PARAMETERS=LINE SEARCH");
+                            self.line("5,");
+                        }
+                        self.comment("iterations and convergence: Abaqus's own controls (its residual norms differ from FieldCraft's)");
+                    } else {
+                        self.line(&format!("*STEP, NAME={}, NLGEOM=NO", step.name));
+                        self.line("*STATIC");
+                        self.line("1.0, 1.0");
+                    }
                     self.step_boundaries(model, r, &base_bcs, &step.boundary_conditions)?;
                     if step.loads == base_loads {
                         self.comment("loads: as in the previous general step");

crates/decks/src/lib.rs

@@ -1,7 +1,7 @@
 //! Solver decks: the solver-neutral model written as Abaqus input, Nastran bulk data and LS-DYNA
 //! keyword files. Each format is its own module (`abaqus`, `nastran`, `lsdyna`), written from the
 //! vendor's public reference manual in our own words; examples and expected files are our own.
-//! Writers read [`modelcraft_model::Model`] and its `resolve()` result, never another format.
+//! Writers read [`fieldcraft_model::Model`] and its `resolve()` result, never another format.
 //!
 //! Writers produce text; saving it is the caller's business (the engine's `deck.write`), so the
 //! crate stays free of the file system. [`FORMATS`] lists every writer by the name `deck.write`
@@ -15,8 +15,8 @@ pub mod nastran;
 
 use std::collections::{BTreeMap, BTreeSet};
 
-use modelcraft_model::nodal::edge_pressure;
-use modelcraft_model::{Diagnostic, Load, Model, Resolved, ResolvedDirection};
+use fieldcraft_model::nodal::edge_pressure;
+use fieldcraft_model::{Diagnostic, Load, Model, Resolved, ResolvedDirection};
 
 #[derive(Debug, Clone, PartialEq, thiserror::Error)]
 pub enum Error {
@@ -25,7 +25,7 @@ pub enum Error {
     Unsupported { format: &'static str, what: String },
     /// The model is not ready to write (its check failed).
     #[error(transparent)]
-    Model(#[from] modelcraft_model::Error),
+    Model(#[from] fieldcraft_model::Error),
     #[error("limit reached: {0}")]
     Limit(String),
 }
@@ -70,11 +70,11 @@ impl Format {
 /// stay (the check warns about the ones no step uses).
 pub fn with_steps(model: &Model, names: &[String]) -> Result<Model> {
     if names.is_empty() {
-        return Err(Error::Model(modelcraft_model::Error::Invalid("choose at least one step to write".into())));
+        return Err(Error::Model(fieldcraft_model::Error::Invalid("choose at least one step to write".into())));
     }
     if let Some(n) = names.iter().find(|n| model.step(n).is_none()) {
-        let shown: String = n.chars().take(modelcraft_model::MAX_NAME_LEN).collect();
-        return Err(Error::Model(modelcraft_model::Error::NotFound(format!("step `{shown}`"))));
+        let shown: String = n.chars().take(fieldcraft_model::MAX_NAME_LEN).collect();
+        return Err(Error::Model(fieldcraft_model::Error::NotFound(format!("step `{shown}`"))));
     }
     let mut out = model.clone();
     let dropped: Vec<String> = model.steps().iter().map(|s| s.name.clone()).filter(|s| !names.contains(s)).collect();
@@ -84,7 +84,7 @@ pub fn with_steps(model: &Model, names: &[String]) -> Result<Model> {
     Ok(out)
 }
 
-/// A fluid step: solved by ModelCraft's lattice Boltzmann solver, never written to a deck.
+/// A fluid step: solved by FieldCraft's lattice Boltzmann solver, never written to a deck.
 pub(crate) fn fluid_step(format: &'static str, step: &str) -> Error {
     Error::Unsupported { format, what: format!("fluid step `{step}` (solve it with solve.fluid; write the structural steps only)") }
 }
@@ -155,7 +155,7 @@ pub fn concentrated_loads<'a>(model: &Model, r: &Resolved, active: impl IntoIter
 
 /// The consistent nodal forces (degrees of freedom 1 and 2) of the active pressures on a 2D
 /// model's element edges, for formats that write them as concentrated loads: the model's edge
-/// integration ([`modelcraft_model::nodal::edge_pressure`]), a positive pressure pushing
+/// integration ([`fieldcraft_model::nodal::edge_pressure`]), a positive pressure pushing
 /// into the element, summed per node and direction; zero sums are left out.
 pub fn edge_pressure_loads<'a>(model: &Model, r: &Resolved, active: impl IntoIterator<Item = &'a str>) -> Result<BTreeMap<(u32, u8), f64>> {
     let mut out: BTreeMap<(u32, u8), f64> = BTreeMap::new();

crates/decks/src/lsdyna/elements.rs

@@ -17,7 +17,7 @@
 //!
 //! Every mapping is checked by the sign of the element Jacobian in the tests.
 
-use modelcraft_model::{ElementKind, Formulation, Integration, SectionKind};
+use fieldcraft_model::{ElementKind, Formulation, Integration, SectionKind};
 
 /// How an element is written: its keyword and its node list in LS-DYNA order.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]

crates/decks/src/lsdyna/mod.rs

@@ -24,7 +24,14 @@
 //!   the set's translations, equal weights);
 //! - per step: `*CONTROL_IMPLICIT_GENERAL`, `*CONTROL_IMPLICIT_SOLUTION` (linear) or
 //!   `*CONTROL_IMPLICIT_EIGENVALUE`, `*CONTROL_TERMINATION` (a static step is one implicit step
-//!   from time 0 to 1 with every load ramped by one curve, `*DEFINE_CURVE`); boundary conditions
+//!   from time 0 to 1 with every load ramped by one curve, `*DEFINE_CURVE`); a nonlinear static
+//!   step runs over the same time with the same ramp (or its load path as the curve), its first
+//!   increment as `dt0`, the nonlinear
+//!   solver with a stiffness reformation every iteration (`ilimit` 1, full Newton) and its
+//!   iteration cap as `maxref`, and `*CONTROL_IMPLICIT_AUTO` with its minimum and maximum
+//!   increments (its increment cap and tolerances have no LS-DYNA counterpart and are left to
+//!   LS-DYNA's defaults; a step without nonlinear geometry and hyperelastic materials in nonlinear
+//!   steps are refused); boundary conditions
 //!   as `*BOUNDARY_SPC_*_ID` (named) and `*BOUNDARY_PRESCRIBED_MOTION_*_ID` for non-zero
 //!   displacements; forces, moments and tractions as `*LOAD_NODE_SET`/`_POINT` from the
 //!   resolved nodal values; pressure as `*LOAD_SEGMENT_SET`; gravity as `*LOAD_BODY_X/Y/Z`
@@ -61,7 +68,7 @@ mod elements;
 
 use std::collections::{BTreeMap, BTreeSet};
 
-use modelcraft_model::{
+use fieldcraft_model::{
     BoundaryCondition, CouplingKind, Diagnostic, Dofs, Elastic, Element, ElementKind, Hardening, Load, Material, Model, OutputVariable, Plastic,
     Procedure, Resolved, ResolvedDirection, Section, SectionKind, Step, Target,
 };
@@ -102,7 +109,7 @@ const MAX_SHELL_POINTS: u32 = 10;
 
 /// A resolved model that breaks its own invariants (unreachable after `resolve`).
 fn broken(what: String) -> Error {
-    Error::Model(modelcraft_model::Error::Invalid(format!("inconsistent resolved model: {what}")))
+    Error::Model(fieldcraft_model::Error::Invalid(format!("inconsistent resolved model: {what}")))
 }
 
 /// One `*PART`: a section's elements of one kind.
@@ -159,7 +166,7 @@ fn write_with(model: &Model, r: &Resolved) -> Result<Written> {
     let cases = if steps.len() > 1 { steps.len() } else { 0 };
 
     d.line("*KEYWORD long=y");
-    d.comment("Written by ModelCraft: implicit linear analysis, long format (20-column fields).");
+    d.comment("Written by FieldCraft: implicit linear analysis, long format (20-column fields).");
     d.comment(&format!("Units: {} (consistent; nothing is converted).", model.units().label()));
     if cases > 0 {
         d.comment(&format!("{cases} steps are written as *CASE analyses: run LS-DYNA with CASE on its command line."));
@@ -267,7 +274,21 @@ fn plan<'a>(model: &'a Model, r: &Resolved) -> Result<Plan<'a>> {
         if matches!(step.procedure, Procedure::ExplicitDynamic(_)) {
             refused.insert(format!("step `{}`: explicit dynamic steps (this writer writes implicit analyses so far)", step.name));
         }
-        let is_static = matches!(step.procedure, Procedure::Static {});
+        if let Procedure::NonlinearStatic(n) = &step.procedure {
+            if !n.nonlinear_geometry {
+                refused.insert(format!(
+                    "step `{}`: a nonlinear step without nonlinear geometry (LS-DYNA's nonlinear implicit analysis always follows the deformed shape)",
+                    step.name
+                ));
+            }
+            for material in model.hyperelastic_in_use() {
+                refused.insert(format!(
+                    "step `{}`: hyperelastic material `{material}` in a nonlinear step (LS-DYNA's rubber materials define their volumetric energy differently; not written yet)",
+                    step.name
+                ));
+            }
+        }
+        let is_static = matches!(step.procedure, Procedure::Static {} | Procedure::NonlinearStatic(_));
         for b in &step.boundary_conditions {
             let Some(bc) = model.boundary_conditions().get(b) else { continue };
             match bc.target() {
@@ -676,7 +697,7 @@ fn discrete(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan) -> Result<()
     let limit = |what: &str| Error::Limit(format!("no {what} id left for point masses, springs and dashpots"));
     let mut eid = model.elements().keys().next_back().copied().unwrap_or(0);
     let mut next_eid = || -> Result<u32> {
-        eid = eid.checked_add(1).filter(|e| *e <= modelcraft_model::MAX_LABEL).ok_or_else(|| limit("element"))?;
+        eid = eid.checked_add(1).filter(|e| *e <= fieldcraft_model::MAX_LABEL).ok_or_else(|| limit("element"))?;
         Ok(eid)
     };
     d.comment("Point masses");
@@ -754,7 +775,7 @@ fn discrete(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan) -> Result<()
                 while taken.contains(&node) {
                     node = node.checked_add(1).ok_or_else(|| limit("node"))?;
                 }
-                if node > modelcraft_model::MAX_LABEL {
+                if node > fieldcraft_model::MAX_LABEL {
                     return Err(limit("node"));
                 }
                 ground.push((node, model.label_xyz(s.first).ok_or_else(|| broken(format!("node {}", s.first)))?));
@@ -793,18 +814,29 @@ fn dof_code(dof: u8) -> i32 {
 fn write_step(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan, step: &Step, n: u32, constraint_id: &mut u32) -> Result<()> {
     d.line("*TITLE");
     d.line(&step.name);
-    let is_static = matches!(step.procedure, Procedure::Static {});
+    let is_static = matches!(step.procedure, Procedure::Static {} | Procedure::NonlinearStatic(_));
+    let first_increment = if let Procedure::NonlinearStatic(n) = &step.procedure { n.initial_increment } else { 1.0 };
     d.line("*CONTROL_IMPLICIT_GENERAL");
     d.header(&["imflag", "dt0"]);
-    d.card([Field::from(1), Field::from(1.0)]);
-    match step.procedure {
+    d.card([Field::from(1), Field::from(first_increment)]);
+    match &step.procedure {
         Procedure::Fluid { .. } => return Err(crate::fluid_step(FORMAT, &step.name)),
         Procedure::Static {} => {
             d.line("*CONTROL_IMPLICIT_SOLUTION");
             d.header(&["nsolvr"]);
             d.card([Field::from(1)]);
         }
-        Procedure::Frequency { modes, min_hz, max_hz } => {
+        Procedure::NonlinearStatic(n) => {
+            // Nonlinear with a stiffness reformation every iteration (full Newton), at most
+            // `max_iterations` per increment; LS-DYNA's own convergence norms and line search.
+            d.line("*CONTROL_IMPLICIT_SOLUTION");
+            d.header(&["nsolvr", "ilimit", "maxref"]);
+            d.card([Field::from(2), Field::from(1), Field::from(n.max_iterations)]);
+            d.line("*CONTROL_IMPLICIT_AUTO");
+            d.header(&["iauto", "iteopt", "itewin", "dtmin", "dtmax"]);
+            d.card([Field::from(1), Field::Blank, Field::Blank, Field::from(n.min_increment), Field::from(n.max_increment)]);
+        }
+        &Procedure::Frequency { modes, min_hz, max_hz } => {
             d.line("*CONTROL_IMPLICIT_EIGENVALUE");
             d.header(&["neig", "center", "lflag", "lftend", "rflag", "rhtend"]);
             let bound = |b: Option<f64>| match b {
@@ -841,8 +873,13 @@ fn write_step(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan, step: &Ste
         d.header(&["lcid"]);
         d.card([Field::from(n)]);
         d.header(&["a1", "o1"]);
-        d.card([Field::from(0.0), Field::from(0.0)]);
-        d.card([Field::from(1.0), Field::from(1.0)]);
+        let path = match &step.procedure {
+            Procedure::NonlinearStatic(s) => s.load_path.clone(),
+            _ => None,
+        };
+        for [t, f] in path.unwrap_or_else(|| vec![[0.0, 0.0], [1.0, 1.0]]) {
+            d.card([Field::from(t), Field::from(f)]);
+        }
     }
 
     for b in &step.boundary_conditions {

crates/decks/src/nastran/mod.rs

@@ -52,7 +52,7 @@ mod card;
 use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::Write as _;
 
-use modelcraft_model::{
+use fieldcraft_model::{
     BeamProfile, Coupling, CouplingKind, Dofs, Elastic, ElementKind, Formulation, Hardening, Integration, Load, MAX_LABEL, Model, OutputVariable,
     Plastic, Procedure, Resolved, SectionKind, Step,
 };
@@ -280,6 +280,9 @@ fn solution(steps: &[&Step]) -> std::result::Result<u32, String> {
     if let Some(s) = steps.iter().find(|s| matches!(s.procedure, Procedure::ExplicitDynamic(_))) {
         return Err(format!("step `{}`: explicit dynamic steps (Nastran's linear solutions have none)", s.name));
     }
+    if let Some(s) = steps.iter().find(|s| matches!(s.procedure, Procedure::NonlinearStatic(_))) {
+        return Err(format!("step `{}`: nonlinear static steps (Nastran's SOL 400; this writer writes SOL 101 and 103 so far)", s.name));
+    }
     let statics = steps.iter().find(|s| matches!(s.procedure, Procedure::Static {}));
     let modes = steps.iter().find(|s| matches!(s.procedure, Procedure::Frequency { .. }));
     match (statics, modes) {
@@ -688,9 +691,9 @@ impl<'m> Deck<'m> {
 
     fn emit(&self) -> Result<String> {
         let mut out = String::new();
-        out.push_str("$ Nastran bulk data written by ModelCraft\n");
+        out.push_str("$ Nastran bulk data written by FieldCraft\n");
         let _ = writeln!(out, "$ units: {}", self.model.units().label());
-        let _ = writeln!(out, "SOL {}\nCEND\nTITLE = ModelCraft model\nECHO = NONE", self.sol);
+        let _ = writeln!(out, "SOL {}\nCEND\nTITLE = FieldCraft model\nECHO = NONE", self.sol);
         for (i, sub) in self.subcases.iter().enumerate() {
             let _ = writeln!(out, "SUBCASE {}", i + 1);
             let title: String = format!("  SUBTITLE = {}", sub.step.name).chars().take(72).collect();
@@ -945,7 +948,7 @@ impl<'m> Deck<'m> {
     }
 
     /// A `PLOAD4` for one element face, positive pushing into the element.
-    fn pressure(&self, sid: u32, f: modelcraft_model::ElementFace, magnitude: f64) -> Option<Card> {
+    fn pressure(&self, sid: u32, f: fieldcraft_model::ElementFace, magnitude: f64) -> Option<Card> {
         let el = self.model.element(f.element)?;
         let card = Card::new("PLOAD4").int(sid).int(f.element);
         if el.kind.dimension() == 2 {
@@ -1010,7 +1013,7 @@ fn plasticity(out: &mut String, name: &str, mid: u32, young: f64, plastic: &Plas
             write_named(out, &format!("stress-strain curve of {name}"), tid, Card::new("TABLES1").int(tid).end_line().reals(curve).text("ENDT"))
         }
         (Plastic::Table { .. }, None) | (Plastic::JohnsonCook { .. }, _) => {
-            Err(Error::Model(modelcraft_model::Error::Invalid(format!("material `{name}`: its plasticity was not planned for MATS1"))))
+            Err(Error::Model(fieldcraft_model::Error::Invalid(format!("material `{name}`: its plasticity was not planned for MATS1"))))
         }
     }
 }

crates/decks/tests/abaqus.rs

@@ -5,8 +5,8 @@
 use std::collections::{BTreeMap, BTreeSet};
 use std::path::PathBuf;
 
-use modelcraft_decks::{Error, abaqus};
-use modelcraft_model::{
+use fieldcraft_decks::{Error, abaqus};
+use fieldcraft_model::{
     BeamProfile, BoundaryCondition, Coupling, CouplingKind, Distribution, Dofs, Elastic, ElementFace, ElementKind, Formulation, Integration, Load,
     Material, Model, OutputVariable, Procedure, ReferencePoint, Section, SectionKind, Set, Step, Symmetry, Target, UnitSystem,
 };
@@ -185,12 +185,12 @@ fn read(deck: &str) -> Parsed {
 
 fn golden(name: &str, deck: &str) {
     let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/abaqus").join(format!("{name}.inp"));
-    if std::env::var_os("MODELCRAFT_BLESS").is_some() {
+    if std::env::var_os("FIELDCRAFT_BLESS").is_some() {
         std::fs::create_dir_all(path.parent().unwrap()).unwrap();
         std::fs::write(&path, deck).unwrap();
     }
-    let expected = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (run with MODELCRAFT_BLESS=1 to write it)", path.display()));
-    assert!(expected == deck, "{name}.inp differs from the written deck (MODELCRAFT_BLESS=1 rewrites it):\n{deck}");
+    let expected = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (run with FIELDCRAFT_BLESS=1 to write it)", path.display()));
+    assert!(expected == deck, "{name}.inp differs from the written deck (FIELDCRAFT_BLESS=1 rewrites it):\n{deck}");
 }
 
 fn assert_lines_fit(deck: &str) {
@@ -513,16 +513,16 @@ fn numbers_read_back_exactly() {
 #[test]
 fn largest_labels_longest_numbers_and_names_fit_a_line() {
     let mut m = Model::default();
-    let base = modelcraft_model::MAX_LABEL - 30;
+    let base = fieldcraft_model::MAX_LABEL - 30;
     let ugly = -1.234_567_890_123_456_7e-300;
     let mut xyz = one_element(ElementKind::Hex20).nodes().values().map(|n| n.xyz).collect::<Vec<_>>();
     xyz[0] = [ugly, ugly, ugly];
     for (i, p) in xyz.iter().enumerate() {
         m.set_node(base + i as u32, *p).unwrap();
     }
-    m.set_element(modelcraft_model::MAX_LABEL, ElementKind::Hex20, (0..20).map(|i| base + i).collect()).unwrap();
-    let long = format!("A{}", "x".repeat(modelcraft_model::MAX_NAME_LEN - 1));
-    m.add_set(&long, Set { elements: vec![modelcraft_model::MAX_LABEL], nodes: (0..20).map(|i| base + i).collect(), ..Set::default() }).unwrap();
+    m.set_element(fieldcraft_model::MAX_LABEL, ElementKind::Hex20, (0..20).map(|i| base + i).collect()).unwrap();
+    let long = format!("A{}", "x".repeat(fieldcraft_model::MAX_NAME_LEN - 1));
+    m.add_set(&long, Set { elements: vec![fieldcraft_model::MAX_LABEL], nodes: (0..20).map(|i| base + i).collect(), ..Set::default() }).unwrap();
     m.add_material(
         &long,
         Material { elastic: Some(Elastic::Isotropic { young: ugly.abs(), poisson: 0.3 }), density: Some(1.0), ..Material::default() },
@@ -537,7 +537,7 @@ fn largest_labels_longest_numbers_and_names_fit_a_line() {
     let deck = abaqus::write(&m).unwrap();
     assert_lines_fit(&deck);
     let p = read(&deck);
-    assert_eq!(p.elements[&modelcraft_model::MAX_LABEL].1.len(), 20, "a hex20 continues onto a second line");
+    assert_eq!(p.elements[&fieldcraft_model::MAX_LABEL].1.len(), 20, "a hex20 continues onto a second line");
     assert_eq!(p.nodes[&base], [ugly; 3]);
 }
 
@@ -704,7 +704,7 @@ fn a_model_that_is_not_ready_is_refused() {
 }
 
 /// The cantilever with its steel given each plasticity in turn.
-fn plastic_cantilever(p: modelcraft_model::Plastic) -> Model {
+fn plastic_cantilever(p: fieldcraft_model::Plastic) -> Model {
     let mut m = cantilever();
     m.replace_material("Steel", Material { plastic: Some(p), ..steel() }).unwrap();
     m
@@ -714,7 +714,7 @@ fn plastic_cantilever(p: modelcraft_model::Plastic) -> Model {
 /// erosion, failure models of Abaqus/Explicit, are reported.
 #[test]
 fn plasticity_is_written_and_failure_reported() {
-    use modelcraft_model::{Damage, Erosion, Hardening, HardeningPoint, Plastic};
+    use fieldcraft_model::{Damage, Erosion, Hardening, HardeningPoint, Plastic};
     let section = |deck: &str| deck.split("*MATERIAL, NAME=Steel").nth(1).and_then(|s| s.split("*SOLID SECTION").next()).unwrap().to_string();
     let deck =
         abaqus::write(&plastic_cantilever(Plastic::Bilinear { yield_stress: 250.0, hardening_modulus: 1000.0, hardening: Hardening::Isotropic }))
@@ -753,3 +753,78 @@ fn plasticity_is_written_and_failure_reported() {
     let Err(Error::Unsupported { what, .. }) = abaqus::write(&failing) else { panic!("damage is not written") };
     assert!(what.contains("material `Steel`: damage and erosion"), "{what}");
 }
+
+/// A nonlinear static step is a general step with NLGEOM, its increments and its line search; a
+/// neo-Hookean material is then `*HYPERELASTIC` and a linear static step beside it is refused.
+#[test]
+fn nonlinear_steps_and_hyperelastic_materials_are_written() {
+    use fieldcraft_model::{Hyperelastic, NonlinearStatic};
+    let mut m = cantilever();
+    let controls = NonlinearStatic {
+        initial_increment: 0.05,
+        min_increment: 1e-4,
+        max_increment: 0.5,
+        max_increments: 40,
+        line_search: true,
+        ..NonlinearStatic::default()
+    };
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(controls.clone()), &["clamp"], &["end"])).unwrap();
+    let deck = abaqus::write(&m).unwrap();
+    let bend = block(&deck, "Bend");
+    assert_eq!(bend.first(), Some(&"*STEP, NAME=Bend, NLGEOM=YES, INC=40"), "{bend:?}");
+    let at = bend.iter().position(|l| *l == "*STATIC").unwrap();
+    assert_eq!(bend.get(at + 1..at + 4), Some(&["0.05, 1.0, 0.0001, 0.5", "*CONTROLS, PARAMETERS=LINE SEARCH", "5,"][..]), "{bend:?}");
+    assert!(deck.contains("*ELASTIC, TYPE=ISOTROPIC\n210000.0, 0.3\n"), "St Venant–Kirchhoff is the elastic material");
+
+    let small = NonlinearStatic { nonlinear_geometry: false, line_search: false, ..controls };
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(small), &["clamp"], &["end"])).unwrap();
+    m.replace_material("Steel", Material { hyperelastic: Some(Hyperelastic::NeoHookean {}), ..steel() }).unwrap();
+    let deck = abaqus::write(&m).unwrap();
+    let bend = block(&deck, "Bend");
+    assert_eq!(bend.first(), Some(&"*STEP, NAME=Bend, NLGEOM=NO, INC=40"), "{bend:?}");
+    assert!(!bend.iter().any(|l| l.starts_with("*CONTROLS")), "{bend:?}");
+    // μ = E/(2(1 + ν)) = 80769.23…, κ = E/(3(1 − 2ν)) = 175000: C10 = μ/2, D1 = 2/κ.
+    let (c10, d1) = (210_000.0 / 2.6 / 2.0, 2.0 / 175_000.0);
+    let line = deck.split("*HYPERELASTIC, NEO HOOKE\n").nth(1).and_then(|s| s.lines().next()).unwrap();
+    let values: Vec<f64> = line.split(", ").map(|v| v.parse().unwrap()).collect();
+    assert!((values[0] - c10).abs() < 1e-9 * c10 && (values[1] - d1).abs() < 1e-9 * d1, "{line}");
+    assert!(!deck.contains("*ELASTIC"), "{deck}");
+
+    // Mooney–Rivlin and Yeoh: C10 = μ/2 − C01, C01, D1 and C10, C20, C30, D1.
+    m.replace_material("Steel", Material { hyperelastic: Some(Hyperelastic::MooneyRivlin { c01: 10000.0 }), ..steel() }).unwrap();
+    let deck = abaqus::write(&m).unwrap();
+    let line = deck.split("*HYPERELASTIC, MOONEY-RIVLIN\n").nth(1).and_then(|s| s.lines().next()).unwrap();
+    let values: Vec<f64> = line.split(", ").map(|v| v.parse().unwrap()).collect();
+    assert!((values[0] - (c10 - 10000.0)).abs() < 1e-9 * c10 && values[1] == 10000.0 && (values[2] - d1).abs() < 1e-9 * d1, "{line}");
+    m.replace_material("Steel", Material { hyperelastic: Some(Hyperelastic::Yeoh { c20: -50.0, c30: 2.0 }), ..steel() }).unwrap();
+    let deck = abaqus::write(&m).unwrap();
+    let line = deck.split("*HYPERELASTIC, YEOH\n").nth(1).and_then(|s| s.lines().next()).unwrap();
+    let values: Vec<f64> = line.split(", ").map(|v| v.parse().unwrap()).collect();
+    assert!((values[0] - c10).abs() < 1e-9 * c10 && values[1..3] == [-50.0, 2.0] && (values[3] - d1).abs() < 1e-9 * d1, "{line}");
+    m.replace_material("Steel", Material { hyperelastic: Some(Hyperelastic::NeoHookean {}), ..steel() }).unwrap();
+
+    m.add_step(step("Linear", Procedure::Static {}, &["clamp"], &["end"]), None).unwrap();
+    assert!(unsupported(&m).contains("step `Linear`: a linear static step beside nonlinear steps of hyperelastic material `Steel`"));
+    m.remove_step("Bend").unwrap();
+    assert!(abaqus::write(&m).unwrap().contains("*ELASTIC, TYPE=ISOTROPIC\n"), "with linear steps only, the elastic constants are the whole of it");
+}
+
+/// A plastic material in nonlinear steps is `*PLASTIC` in a general step; what Abaqus would
+/// read differently is refused: a load path, and several general steps (Abaqus carries the
+/// plastic state between them).
+#[test]
+fn nonlinear_plastic_steps_and_what_is_refused() {
+    use fieldcraft_model::{Hardening, NonlinearStatic, Plastic};
+    let mut m = cantilever();
+    let plastic = Plastic::Bilinear { yield_stress: 250.0, hardening_modulus: 2000.0, hardening: Hardening::Isotropic };
+    m.replace_material("Steel", Material { plastic: Some(plastic), ..steel() }).unwrap();
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(NonlinearStatic::default()), &["clamp"], &["end"])).unwrap();
+    let deck = abaqus::write(&m).unwrap();
+    assert!(deck.contains("*PLASTIC\n250.0, 0.0\n") && deck.contains("NLGEOM=YES"), "{deck}");
+    let path = NonlinearStatic { load_path: Some(vec![[0.0, 0.0], [0.5, 1.0], [1.0, 0.0]]), ..NonlinearStatic::default() };
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(path), &["clamp"], &["end"])).unwrap();
+    assert!(unsupported(&m).contains("step `Bend`: a load path"));
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(NonlinearStatic::default()), &["clamp"], &["end"])).unwrap();
+    m.add_step(step("Again", Procedure::NonlinearStatic(NonlinearStatic::default()), &["clamp"], &["end"]), None).unwrap();
+    assert!(unsupported(&m).contains("plastic material `Steel` in a deck of 2 general steps"));
+}

crates/decks/tests/abaqus/cantilever.inp

@@ -1,6 +1,6 @@
 *HEADING
-ModelCraft model, units mm-t-s-N-MPa
-** Written by ModelCraft. The numbers are in one consistent unit system and are not converted.
+FieldCraft model, units mm-t-s-N-MPa
+** Written by FieldCraft. The numbers are in one consistent unit system and are not converted.
 ** Nodes
 *NODE
 1, 0.0, 0.0, 0.0

crates/decks/tests/abaqus/frequency.inp

@@ -1,6 +1,6 @@
 *HEADING
-ModelCraft model, units mm-t-s-N-MPa
-** Written by ModelCraft. The numbers are in one consistent unit system and are not converted.
+FieldCraft model, units mm-t-s-N-MPa
+** Written by FieldCraft. The numbers are in one consistent unit system and are not converted.
 ** Nodes
 *NODE
 1, 0.0, 0.0, 0.0

crates/decks/tests/abaqus/plate.inp

@@ -1,6 +1,6 @@
 *HEADING
-ModelCraft model, units mm-t-s-N-MPa
-** Written by ModelCraft. The numbers are in one consistent unit system and are not converted.
+FieldCraft model, units mm-t-s-N-MPa
+** Written by FieldCraft. The numbers are in one consistent unit system and are not converted.
 ** Nodes
 *NODE
 1, 0.0, 0.0, 0.0

crates/decks/tests/discrete.rs

@@ -1,8 +1,8 @@
 //! Trusses (rod3), point masses, rotary inertia, springs and dashpots in every deck format:
 //! what each writes, and what each reports as unsupported.
 
-use modelcraft_decks::{Error, abaqus, lsdyna, nastran};
-use modelcraft_model::{
+use fieldcraft_decks::{Error, abaqus, lsdyna, nastran};
+use fieldcraft_model::{
     BoundaryCondition, Direction, Elastic, ElementKind, Formulation, Mass, Material, Model, PointMass, Procedure, ReferencePoint, Section,
     SectionKind, Set, Spring, Step, Target, UnitSystem,
 };

crates/decks/tests/golden/nastran/cantilever.bdf

@@ -1,8 +1,8 @@
-$ Nastran bulk data written by ModelCraft
+$ Nastran bulk data written by FieldCraft
 $ units: mm-t-s-N-MPa
 SOL 101
 CEND
-TITLE = ModelCraft model
+TITLE = FieldCraft model
 ECHO = NONE
 SUBCASE 1
   SUBTITLE = Bend

crates/decks/tests/golden/nastran/modes.bdf

@@ -1,8 +1,8 @@
-$ Nastran bulk data written by ModelCraft
+$ Nastran bulk data written by FieldCraft
 $ units: unspecified
 SOL 103
 CEND
-TITLE = ModelCraft model
+TITLE = FieldCraft model
 ECHO = NONE
 SUBCASE 1
   SUBTITLE = Modes

crates/decks/tests/golden/nastran/plate.bdf

@@ -1,8 +1,8 @@
-$ Nastran bulk data written by ModelCraft
+$ Nastran bulk data written by FieldCraft
 $ units: mm-t-s-N-MPa
 SOL 101
 CEND
-TITLE = ModelCraft model
+TITLE = FieldCraft model
 ECHO = NONE
 SUBCASE 1
   SUBTITLE = Sag

crates/decks/tests/lsdyna.rs

@@ -1,13 +1,13 @@
 //! LS-DYNA deck writer: golden files of our own small models, node-order mappings checked by the
 //! sign of the element Jacobian, a re-read of our own output, and what the format cannot take.
 //!
-//! Golden files live in `tests/lsdyna/`; `MODELCRAFT_BLESS=1 cargo test -p modelcraft-decks`
+//! Golden files live in `tests/lsdyna/`; `FIELDCRAFT_BLESS=1 cargo test -p fieldcraft-decks`
 //! rewrites them after an intended change (review the diff).
 
 use std::collections::{BTreeMap, BTreeSet};
 
-use modelcraft_decks::{Error, lsdyna};
-use modelcraft_model::*;
+use fieldcraft_decks::{Error, lsdyna};
+use fieldcraft_model::*;
 
 // ---------------------------------------------------------------------------------------------
 // Our own models.
@@ -200,11 +200,11 @@ fn golden(name: &str, model: &Model) -> lsdyna::Written {
     let again = lsdyna::write(model).unwrap();
     assert_eq!(written, again, "deterministic");
     let path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/lsdyna").join(format!("{name}.k"));
-    if std::env::var_os("MODELCRAFT_BLESS").is_some() {
+    if std::env::var_os("FIELDCRAFT_BLESS").is_some() {
         std::fs::write(&path, &written.text).unwrap();
     }
-    let expected = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (run with MODELCRAFT_BLESS=1)", path.display()));
-    assert!(written.text == expected, "{name}.k differs from the golden file (MODELCRAFT_BLESS=1 rewrites it)");
+    let expected = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (run with FIELDCRAFT_BLESS=1)", path.display()));
+    assert!(written.text == expected, "{name}.k differs from the golden file (FIELDCRAFT_BLESS=1 rewrites it)");
     assert!(written.text.is_ascii());
     for line in written.text.lines() {
         assert!(line.len() <= 200 && line == line.trim_end(), "{line:?}");
@@ -688,7 +688,7 @@ fn hostile_numbers_stay_within_their_fields() {
 fn explicit_steps_are_refused_by_every_format() {
     let mut m = cantilever();
     m.add_step(step("Impact", Procedure::ExplicitDynamic(ExplicitDynamic::new(1e-3)), &["clamp"], &[]), None).unwrap();
-    for f in modelcraft_decks::FORMATS {
+    for f in fieldcraft_decks::FORMATS {
         let e = f.write(&m).unwrap_err();
         assert!(matches!(e, Error::Unsupported { .. }), "{}: {e}", f.name);
         assert!(e.to_string().contains("step `Impact`: explicit dynamic"), "{}: {e}", f.name);
@@ -737,3 +737,50 @@ fn plasticity_is_written_as_plastic_materials() {
     let Err(Error::Unsupported { what, .. }) = lsdyna::write(&with(jc, None)) else { panic!() };
     assert!(what.contains("Johnson–Cook"), "{what}");
 }
+
+/// A nonlinear static step: the ramped implicit run with full Newton and automatic increments;
+/// what LS-DYNA cannot take is named.
+#[test]
+fn nonlinear_static_steps() {
+    let mut m = cantilever();
+    let controls =
+        NonlinearStatic { initial_increment: 0.05, min_increment: 1e-4, max_increment: 0.5, max_iterations: 12, ..NonlinearStatic::default() };
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(controls.clone()), &["clamp"], &["tip_load"])).unwrap();
+    let deck = lsdyna::write(&m).unwrap().text;
+    let after = |keyword: &str| -> Vec<String> {
+        let mut lines = deck.lines().skip_while(|l| *l != keyword).skip(1).filter(|l| !l.starts_with('$'));
+        lines.next().unwrap().split_whitespace().map(str::to_string).collect()
+    };
+    let num = |s: &String| s.parse::<f64>().unwrap();
+    let general = after("*CONTROL_IMPLICIT_GENERAL");
+    assert_eq!((num(&general[0]), num(&general[1])), (1.0, 0.05), "{general:?}");
+    let solution = after("*CONTROL_IMPLICIT_SOLUTION");
+    assert_eq!(solution.iter().map(num).collect::<Vec<_>>(), [2.0, 1.0, 12.0], "{solution:?}");
+    let auto = after("*CONTROL_IMPLICIT_AUTO");
+    assert_eq!(auto.iter().map(num).collect::<Vec<_>>(), [1.0, 1e-4, 0.5], "blank fields are skipped: {auto:?}");
+    assert!(deck.contains("*DEFINE_CURVE_TITLE\nBend ramp\n"), "the loads follow the ramp");
+    assert!(deck.contains("*LOAD_NODE"), "{deck}");
+    // A load path is the curve.
+    let path = NonlinearStatic { load_path: Some(vec![[0.0, 0.0], [0.5, 1.0], [1.0, -1.0]]), ..controls.clone() };
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(path), &["clamp"], &["tip_load"])).unwrap();
+    let deck = lsdyna::write(&m).unwrap().text;
+    let curve: Vec<Vec<f64>> = deck
+        .lines()
+        .skip_while(|l| *l != "Bend ramp")
+        .filter(|l| !l.starts_with('$'))
+        .skip(2)
+        .take(3)
+        .map(|l| l.split_whitespace().map(|v| v.parse().unwrap()).collect())
+        .collect();
+    assert_eq!(curve, [vec![0.0, 0.0], vec![0.5, 1.0], vec![1.0, -1.0]], "{deck}");
+
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(NonlinearStatic { nonlinear_geometry: false, ..controls }), &["clamp"], &["tip_load"]))
+        .unwrap();
+    unsupported(&m, "a nonlinear step without nonlinear geometry");
+    m.replace_step(step("Bend", Procedure::NonlinearStatic(NonlinearStatic::default()), &["clamp"], &["tip_load"])).unwrap();
+    m.replace_material("Steel", Material { hyperelastic: Some(Hyperelastic::NeoHookean {}), ..steel() }).unwrap();
+    unsupported(&m, "hyperelastic material `Steel` in a nonlinear step");
+    // In a linear step the elastic constants are the whole of a hyperelastic material.
+    m.replace_step(step("Bend", Procedure::Static {}, &["clamp"], &["tip_load"])).unwrap();
+    assert!(lsdyna::write(&m).unwrap().text.contains("*MAT_ELASTIC_TITLE"));
+}

crates/decks/tests/lsdyna/cantilever.k

@@ -1,5 +1,5 @@
 *KEYWORD long=y
-$ Written by ModelCraft: implicit linear analysis, long format (20-column fields).
+$ Written by FieldCraft: implicit linear analysis, long format (20-column fields).
 $ Units: mm-t-s-N-MPa (consistent; nothing is converted).
 *NODE
 $                nid                   x                   y                   z

crates/decks/tests/lsdyna/cantilever_modes.k

@@ -1,5 +1,5 @@
 *KEYWORD long=y
-$ Written by ModelCraft: implicit linear analysis, long format (20-column fields).
+$ Written by FieldCraft: implicit linear analysis, long format (20-column fields).
 $ Units: mm-t-s-N-MPa (consistent; nothing is converted).
 $ 2 steps are written as *CASE analyses: run LS-DYNA with CASE on its command line.
 *NODE

crates/decks/tests/lsdyna/plate.k

@@ -1,5 +1,5 @@
 *KEYWORD long=y
-$ Written by ModelCraft: implicit linear analysis, long format (20-column fields).
+$ Written by FieldCraft: implicit linear analysis, long format (20-column fields).
 $ Units: mm-t-s-N-MPa (consistent; nothing is converted).
 *NODE
 $                nid                   x                   y                   z

crates/decks/tests/lsdyna/solids.k

@@ -1,5 +1,5 @@
 *KEYWORD long=y
-$ Written by ModelCraft: implicit linear analysis, long format (20-column fields).
+$ Written by FieldCraft: implicit linear analysis, long format (20-column fields).
 $ Units: m-kg-s-N-Pa (consistent; nothing is converted).
 *NODE
 $                nid                   x                   y                   z

crates/decks/tests/nastran.rs

@@ -2,13 +2,13 @@
 //! output (grids, elements, constraint sets, case control), node order checked against Nastran's
 //! own element conventions by Jacobian sign and mid-side positions, and what is unsupported.
 //!
-//! Golden files are rewritten with `MODELCRAFT_BLESS=1 cargo test -p modelcraft-decks`.
+//! Golden files are rewritten with `FIELDCRAFT_BLESS=1 cargo test -p fieldcraft-decks`.
 
 use std::collections::BTreeMap;
 
-use modelcraft_decks::nastran;
-use modelcraft_decks::{Error, with_steps};
-use modelcraft_model::{
+use fieldcraft_decks::nastran;
+use fieldcraft_decks::{Error, with_steps};
+use fieldcraft_model::{
     BeamProfile, BoundaryCondition, Coupling, CouplingKind, Distribution, Dofs, Elastic, ElementFace, ElementKind, Formulation, Integration, Load,
     Material, Model, Procedure, ReferencePoint, Section, SectionKind, Set, Step, Target, UnitSystem,
 };
@@ -266,12 +266,12 @@ fn modes() -> Model {
 
 fn golden(name: &str, deck: &str) {
     let path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/golden/nastran").join(format!("{name}.bdf"));
-    if std::env::var_os("MODELCRAFT_BLESS").is_some() {
+    if std::env::var_os("FIELDCRAFT_BLESS").is_some() {
         std::fs::create_dir_all(path.parent().unwrap()).unwrap();
         std::fs::write(&path, deck).unwrap();
     }
-    let want = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (bless with MODELCRAFT_BLESS=1)", path.display()));
-    assert_eq!(deck, want, "{name}: the deck changed (bless with MODELCRAFT_BLESS=1 after checking it)");
+    let want = std::fs::read_to_string(&path).unwrap_or_else(|e| panic!("{}: {e} (bless with FIELDCRAFT_BLESS=1)", path.display()));
+    assert_eq!(deck, want, "{name}: the deck changed (bless with FIELDCRAFT_BLESS=1 after checking it)");
 }
 
 fn unsupported(m: &Model) -> String {
@@ -640,7 +640,7 @@ fn steps_are_chosen_and_mixed_solutions_are_refused() {
     // A modes step holds the clamp but carries no loads.
     assert!(r.cards("FORCE").next().is_none());
     assert_eq!(read(&nastran::write(&with_steps(&m, &only(&["Bend"])).unwrap()).unwrap()).sol, 101);
-    let nastran = modelcraft_decks::format("nastran").unwrap();
+    let nastran = fieldcraft_decks::format("nastran").unwrap();
     assert_eq!(nastran.write_steps(&m, Some(&only(&["Bend"]))).unwrap().text, nastran::write(&with_steps(&m, &only(&["Bend"])).unwrap()).unwrap());
 
     for bad in [only(&[]), only(&["Nope"]), only(&[&"x".repeat(100_000)]), only(&["", "\u{0}"])] {
@@ -740,7 +740,7 @@ fn conflicting_values_and_ids_at_the_top_of_the_range() {
 /// damage and erosion are reported.
 #[test]
 fn plasticity_is_written_as_mats1() {
-    use modelcraft_model::{Erosion, Hardening, HardeningPoint, Plastic};
+    use fieldcraft_model::{Erosion, Hardening, HardeningPoint, Plastic};
     let with = |p: Plastic| {
         let mut m = cantilever();
         m.replace_material("Steel", Material { plastic: Some(p), ..steel() }).unwrap();
@@ -782,3 +782,13 @@ fn plasticity_is_written_as_mats1() {
     let Err(Error::Unsupported { what, .. }) = nastran::write(&m) else { panic!() };
     assert!(what.contains("Johnson–Cook plasticity") && what.contains("damage and erosion"), "{what}");
 }
+
+#[test]
+fn nonlinear_static_steps_are_refused_by_name() {
+    let mut m = cantilever();
+    let name = m.steps()[0].name.clone();
+    let mut s = m.steps()[0].clone();
+    s.set_procedure(Procedure::NonlinearStatic(fieldcraft_model::NonlinearStatic::default()));
+    m.replace_step(s).unwrap();
+    assert!(unsupported(&m).contains(&format!("step `{name}`: nonlinear static steps (Nastran's SOL 400")), "{}", unsupported(&m));
+}