{ macAddress ? null, selfIp }:

{
  networking = {
    interfaces.end0 = {
      inherit macAddress;
      ipv4.addresses = [{
        address = selfIp;
        prefixLength = 24;
      }];
    };
    defaultGateway = "192.168.20.1";
    nameservers = [ "192.168.20.1" ];
  };
}