{ pkgs, lib, config, options, nodes, ... }:
let ipv4 = if options.networking.privateIPv4.isDefined
           then config.networking.privateIPv4
           else "X.X.X.X";
in
{
}
// lib.mkIf (builtins.hasAttr "mermet" nodes) {
  networking = {
    interfaces."enp0s8" = {
      #macAddress = "00:11:22:33:44:55";
      #ipv4.addresses = [ { address = ipv4; prefixLength = 32; } ];
      ipv6.addresses = [ { address = "fe80::1"; prefixLength = 10; } ];
    };
  };
}