{ options, config, lib, pkgs, ... }: with lib; with lib.plusultra; let cfg = config.plusultra.apps.rpcs3; in { options.plusultra.apps.rpcs3 = with types; { enable = mkBoolOpt false "Whether or not to enable rpcs3."; }; config = mkIf cfg.enable { environment.systemPackages = with pkgs; [ rpcs3 ]; }; }