anchor.diff:      ''
         startAll;
   
  -      $client->waitForUnit("network.target");
  +      $client->waitForUnit("network-online.target");
         $server->waitForUnit("ferm.service");
         $server->waitForUnit("nginx.service");
         $server->waitUntilSucceeds("ss -ntl | grep -q 80");
  
positive.code:         with pkgs.lib;
          {
            networking = {
              interfaces.eth1.ipv6.addresses = mkOverride 0 [ { address = "fd00::1"; prefixLength = 64; } ];
              interfaces.eth1.ipv4.addresses = mkOverride 0 [ { address = "192.168.1.1"; prefixLength = 24; } ];
            };
  
negative.code:         with pkgs.lib;
          {
            networking = {
              dhcpcd.enable = false;
              interfaces.eth1.ipv6.addresses = mkOverride 0 [ { address = "fd00::2"; prefixLength = 64; } ];
              interfaces.eth1.ipv4.addresses = mkOverride 0 [ { address = "192.168.1.2"; prefixLength = 24; } ];
            };
  