Source : https://github.com/cross-seed/cross-seed/
Download :
Apache81 : https://www.myqnap.org/product/cross-seed-apache81/
note : cross-seed added to commande line NAS PATH
cross-seed is an app designed to help you download torrents that you can cross seed based on your existing torrents. It is designed to match conservatively to minimize manual intervention.
cross-seed can inject the torrents it finds directly into your torrent client. Currently the supported clients are
rTorrent
qBittorrent