anchor.diff:        };
   
         port = mkOption {
  -        default = "5000";
  -        example = "5000";
  -        type = types.string;
  +        default = 5000;
  +        example = 5000;
  +        type = types.int;
           description = ''
             Specifies the port on which to listen.
           '';
  
positive.code:       dataDir = mkOption {
          default = "/home/${cfg.user}/.znc";
          example = "/home/john/.znc";
          type = types.string; 
          description = ''
            The data directory. Used for configuration files and modules.
          '';
  
negative.code:       };
   
        extraFlags = mkOption {
          default = [ ];
          example = [ "--debug" ];
          type = types.listOf types.str;
          description = ''
            Extra flags to use when executing znc command.
          '';
  