{ config, lib, pkgs, ... }: let cfg = config.hardware.keyboard.teck; inherit (lib) mkEnableOption mkIf; in { options.hardware.keyboard.teck = { enable = mkEnableOption "non-root access to the firmware of TECK keyboards"; }; config = mkIf cfg.enable { services.udev.packages = [ pkgs.teck-udev-rules ]; }; }