{ config, pkgs, lib, ... }: let cfg = config.programs.flexoptix-app; in { options = { programs.flexoptix-app = { enable = lib.mkEnableOption "FLEXOPTIX app + udev rules"; package = lib.mkPackageOption pkgs "flexoptix-app" { }; }; }; config = lib.mkIf cfg.enable { environment.systemPackages = [ cfg.package ]; services.udev.packages = [ cfg.package ]; }; }