{ config, lib, pkgs, ... }: { imports = [ ]; options.me = { ship2harkinian.enable = lib.mkOption { type = lib.types.bool; default = false; example = true; description = "Whether we want to install 2ship2harkinian."; }; }; config = lib.mkIf config.me.ship2harkinian.enable ( lib.mkMerge [ { allowedUnfree = [ "2ship2harkinian" ]; } (lib.mkIf config.me.graphical { environment.systemPackages = with pkgs; [ _2ship2harkinian ]; }) ] ); }