anchor.diff:  
         ethernet.macAddress = macAddressOpt;
         wifi.macAddress = macAddressOpt;
  +
  +      useDnsmasq = mkOption {
  +        type = types.bool;
  +        default = false;
  +        description = ''
  +          Enable NetworkManager's dnsmasq integration. NetworkManager will run
  +          dnsmasq as a local caching nameserver, using a "split DNS"
  +          configuration if you are connected to a VPN, and then update
  +          resolv.conf to point to the local nameserver.
  +        '';
  +      };
   
         dispatcherScripts = mkOption {
           type = types.listOf (types.submodule {
  
positive.code:         description = ''
            A list of scripts which will be executed in response to  network  events.
          '';
        };
  
        extraConfig = mkOption {
          type = types.lines;
          default = "";
          description = "Additional configuration added verbatim to the configuration file.";
        };
      };
    };
  
negative.code:     ipv6.ip6-privacy=2
      ethernet.cloned-mac-address=${cfg.ethernet.macAddress}
      wifi.cloned-mac-address=${cfg.wifi.macAddress}
    '';
  
    /*
  