{ config, pkgs, ... }: { environment.systemPackages = with pkgs; [ iperf3 speedtest-cli dhcpcd ]; services = { iperf3 = { enable = true; }; }; networking = { networkmanager.enable = true; firewall = { enable = false; allowedTCPPorts = [ 80 1337 5001 8080 3000 8000 ]; }; }; }