{ config, lib, pkgs, ... }: with lib; let cfg = config.hardware.logitech; in { options.hardware.logitech = { enable = mkEnableOption "Logitech Devices"; enableGraphical = mkOption { type = types.bool; default = false; description = "Enable graphical support applications."; }; }; config = lib.mkIf cfg.enable { environment.systemPackages = [ pkgs.ltunify ] ++ lib.optional cfg.enableGraphical pkgs.solaar; # ltunifi and solaar both provide udev rules but the most up-to-date have been split # out into a dedicated derivation services.udev.packages = with pkgs; [ logitech-udev-rules ]; }; }