{ config, lib, namespace, pkgs, ... }: with lib; with lib.${namespace}; let cfg = config.${namespace}.apps.teamspeak; in { options.${namespace}.apps.teamspeak = with types; { enable = mkBoolOpt false "Whether or not to enable basic configuration"; }; config = mkIf cfg.enable { environment.systemPackages = with pkgs; [ teamspeak_client ]; }; }