anchor.diff:          default = "/var/lib/btsync/";
           example = "/var/lib/btsync/";
           description = ''
  -          Where to store the bittorrent sync files.
  +          Where BitTorrent Sync will store it's database files (containing
  +          things like username info and licenses). Generally, you should not
  +          need to ever change this.
           '';
         };
   
  
positive.code:         type = types.bool;
          default = false;
          description = ''
            If enabled, start the Bittorrent Sync daemon. Once enabled,
            you can interact with the service through the Web UI, or
            configure it in your NixOS configuration. Enabling the
            <literal>btsync</literal> service also installs a
            multi-instance systemd unit which can be used to start
            user-specific copies of the daemon. Once installed, you can
            use <literal>systemctl start btsync@user</literal> to start
            the daemon only for user <literal>user</literal>, using the
            configuration file located at
            <literal>$HOME/.config/btsync.conf</literal>.
          '';
        };
  
negative.code:       };
      };
  
      systemd.user.services.btsync = with pkgs; {
        description = "Bittorrent Sync user service";
        after       = [ "network.target" "local-fs.target" ];
        serviceConfig = {
          Restart   = "on-abort";
          ExecStart =
            "${bittorrentSync}/bin/btsync --nodaemon --config %h/.config/btsync.conf";
        };
  