1on: [push, pull_request]
 2
 3name: CI
 4
 5jobs:
 6  nix-matrix:
 7    runs-on: ubuntu-latest
 8    outputs:
 9      matrix: ${{ steps.set-matrix.outputs.matrix }}
10    steps:
11      - uses: actions/checkout@v4
12      - uses: cachix/install-nix-action@v30
13      - id: set-matrix
14        name: Generate Nix Matrix
15        run: |
16          set -Eeu
17          matrix="$(nix eval --json '.#githubActions.matrix')"
18          echo "matrix=$matrix" >> "$GITHUB_OUTPUT"          
19
20  check:
21    name: ${{ matrix.name }} (${{ matrix.system }})
22    needs: nix-matrix
23    runs-on: ${{ matrix.os }}
24    strategy:
25      matrix: ${{fromJSON(needs.nix-matrix.outputs.matrix)}}
26    steps:
27      - uses: actions/checkout@v4
28      - uses: cachix/install-nix-action@v30
29      - name: Authenticate with Cachix
30        uses: cachix/cachix-action@v15
31        with:
32          name: rgit
33          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
34      - run: nix build -L '.#${{ matrix.attr }}'