{ lib, config, options, pkgs, ... }: with lib; let cfg = config.modules.desktop.apps.cad; in { options.modules.desktop.apps.cad = { enable = mkEnableOption false; }; config = mkIf cfg.enable { environment.systemPackages = with pkgs; [ (blender.override { cudaSupport = true; }) openscad freecad ]; }; }