{ options, config, lib, pkgs, ... }: with lib; with lib.plusultra; let cfg = config.plusultra.apps.element; in { options.plusultra.apps.element = with types; { enable = mkBoolOpt false "Whether or not to enable Element."; }; config = mkIf cfg.enable { environment.systemPackages = with pkgs; [ element-desktop ]; }; }