anchor.diff:          description = "Whether to enable the Name Service Cache Daemon.";
         };
   
  +      config = mkOption {
  +        type = types.lines;
  +        default = builtins.readFile ./nscd.conf;
  +        description = "Configuration to use for Name Service Cache Daemon.";
  +      };
  +
       };
   
     };
  
positive.code:         restartTriggers = [ config.environment.etc.hosts.source ];
  
          serviceConfig =
            { ExecStart = "@${pkgs.glibc}/sbin/nscd nscd -f ${./nscd.conf}";
              Type = "forking";
              PIDFile = "/run/nscd/nscd.pid";
              Restart = "always";
  
negative.code: 
    ###### implementation
  
    config = mkIf cfg.enable {
  
      users.extraUsers = singleton
        { name = "nscd";
  