name: flake-check

on:
  pull_request:
  push:
    branches: [master]

permissions:
  contents: read

concurrency:
  group: flake-check-${{ github.ref }}
  cancel-in-progress: true

jobs:
  flake-check:
    runs-on: nix
    steps:
      - uses: actions/checkout@v4

      - uses: cachix/install-nix-action@v31
        with:
          extra_nix_config: |
            experimental-features = nix-command flakes

      - run: nix flake check -L