name: Evaluate configurations

on:
  push:

jobs:
  eval:
    name: Evaluate configurations
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v14

      - name: Evaluate
        run: |
          nix eval .#nixosConfigurations --apply 'builtins.mapAttrs (name: cfg: cfg.config.system.build.toplevel)'