{
  perSystem =
    { pkgs, ... }:
    {
      apps.checks = {
        type = "app";
        program = toString (
          pkgs.writeShellScript "lint" ''
            set -e

            "${pkgs.nix-fast-build}/bin/nix-fast-build" --skip-cached --no-link "$@"
          ''
        );
        meta.description = "run all the nix checks in parallel";
      };
    };
}