{ lib, config, ... }: let cfg = config.my.system.power; in { options.my.system.power = { enable = lib.mkEnableOption "power management"; }; config = lib.mkIf cfg.enable { boot.kernelParams = [ "mem_sleep_default=deep" ]; powerManagement = { enable = true; powertop.enable = true; }; services.power-profiles-daemon.enable = true; services.tlp.enable = false; services.upower.enable = true; }; }