anchor.diff:        after = [ "network.target" ];
         description = "Deluge BitTorrent Daemon";
         wantedBy = [ "multi-user.target" ];
  -      path = [ pkgs.deluge ];
  +      path = [ pkgs.deluge ] ++ cfg.extraPackages;
         serviceConfig = {
           ExecStart = ''
             ${pkgs.deluge}/bin/deluged \
  
positive.code:             Group under which deluge runs.
            '';
          };
        };
  
        deluge.web = {
  
negative.code:   };
  
    config = mkIf cfg.enable {
  
      # Provide a default set of `extraPackages`.
      services.deluge.extraPackages = with pkgs; [ unzip gnutar xz p7zip bzip2 ];
  
      systemd.tmpfiles.rules = [ "d '${configDir}' 0770 ${cfg.user} ${cfg.group}" ]
      ++ optional (cfg.config ? "download_location")
  