anchor.diff:  
   
         ratelimit = {
  -        enable = mkOption {
  -          type        = types.bool;
  -          default     = false;
  -          description = ''
  -            Enable ratelimit capabilities.
  -          '';
  -        };
  +        enable = mkEnableOption "ratelimit capabilities";
   
           size = mkOption {
             type        = types.int;
  
positive.code: 
  
        remoteControl = {
          enable = mkOption {
            type        = types.bool;
            default     = false;
            description = ''
              Wheter to enable remote control via nsd-control(8).
            '';
          };
  
          interfaces = mkOption {
            type        = types.listOf types.str;
  
negative.code:   options = {
      services.nsd = {
  
        enable = mkEnableOption "NSD authoritative DNS server";
        bind8Stats = mkEnableOption "BIND8 like statistics";
  
        rootServer = mkOption {
          type        = types.bool;
  