with import ; { config, pkgs, ... }: let bestGuessGateway = addr: elemAt (match "(.*)(\.[^.])" addr) 0 + ".1"; in { krebs.build.host = config.krebs.hosts.cd; imports = [ ]; networking = let address = config.krebs.build.host.nets.internet.ip4.addr; in { defaultGateway = bestGuessGateway address; interfaces.enp2s1.ip4 = singleton { inherit address; prefixLength = 24; }; nameservers = ["8.8.8.8"]; }; environment.systemPackages = with pkgs; [ iftop iotop iptables nethogs tcpdump ]; }