service/portable: Add meta placeholder (#435005)

        '';

      };

    };

    # TODO: use https://github.com/NixOS/nixpkgs/pull/431450

    meta = lib.mkOption {

      description = "The maintainers of this module. This is currently a placeholder option whose value may not evaluate to anything useful until https://github.com/NixOS/nixpkgs/pull/431450 is available and used here.";

    };

  };

}