anchor.diff:          '';
         };
   
  +      extraOpts = mkOption {
  +        type = with types; listOf str;
  +        default = [];
  +        example = [ "-d" ];
  +        description = ''
  +          Extra scollector command line options
  +        '';
  +      };
  +
       };
   
     };
  
positive.code:         PermissionsStartOnly = true;
          User = cfg.user;
          Group = cfg.group;
          ExecStart = ''
            ${cfg.package}/bin/scollector -h=${cfg.bosunHost} -c=${collectors}
          '';
        };
      };
  
  
negative.code:                    binaries)))
            cfg.collectors)}
      '';
  
    cmdLineOpts = concatStringsSep " " (
      [ "-h=${cfg.bosunHost}" "-c=${collectors}" ] ++ cfg.extraOpts
    );
  
  in {
  
  