anchor.diff:        };
   
         portNumber = mkOption {
  +        type = types.port;
           default = 4242;
           description = ''
             The port number the Quassel daemon will be listening to.
  
positive.code: 
        user = mkOption {
          default = null;
          description = ''
            The existing user the Quassel daemon should run as. If left empty, a default "quassel" user will be created.
          '';
  
negative.code:       };
  
        interfaces = mkOption {
          type = types.listOf types.str;
          default = [ "127.0.0.1" ];
          description = ''
            The interfaces the Quassel daemon will be listening to.  If `[ 127.0.0.1 ]',
  