{ config, pkgs, lib, ... }: let cfg = config.local.programs.communication.simplex-chat; in { options.local.programs.communication.simplex-chat = with lib; { enable = mkEnableOption "SimplexChat"; package = mkPackageOption pkgs "simplex-chat-desktop" { }; openFirewall = mkEnableOption "Open firewall to link mobile device"; }; config = lib.mkIf cfg.enable { environment.systemPackages = [ cfg.package ]; networking.firewall = lib.mkIf cfg.openFirewall { allowedTCPPorts = [ 44000 ]; }; }; }