nixos-config/templates/basic-nix-module-flake/nix/flake/default.nix

{ lib, inputs, ... }: {
  flake = { nixosModules.default = ../modules; };

  perSystem = { lib, pkgs, system, ... }: {
    formatter = pkgs.treefmt;

    devShells.default = import ../../shell.nix { inherit pkgs; };

    # Just make sure it actually compiles with a very minimal NixOS
    # configuration.
    checks.nixos-module-test = let
      nixosSystem = args:
        import "${inputs.nixpkgs}/nixos/lib/eval-config.nix" args;
    in nixosSystem {
      modules = [
        ({ modulesPath, ... }: {
          imports = [ "${modulesPath}/profiles/minimal.nix" ];

          nixpkgs.hostPlatform = system;
          boot.loader.grub.enable = false;
          fileSystems."/".device = "nodev";
        })
      ];
    };
  };
}