name: Setup Nix
description: Install Nix and enable the shared binary cache for flake-based CI jobs

runs:
  using: composite
  steps:
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@v23
      with:
        extra-conf: |
          experimental-features = nix-command flakes

    - name: Enable Magic Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@v15