{config, ...}: let cfgUser = config.myOptions.system.username; in { networking = { firewall.enable = false; networkmanager = { enable = true; dns = "systemd-resolved"; }; }; services.resolved = { enable = true; fallbackDns = [ "9.9.9.9" "2620:fe::fe" ]; }; users.extraGroups.networkmanager.members = ["${cfgUser}"]; }