Installing and setting up rTorrent and ruTorrent on an Ubuntu or Debian server can be a complicated, tedious task, specially for inexperienced users. rtinst is a script that makes this easier, by automatically installing and configuring rTorrent, ruTorrent (stable or master), and everything else needed for an Ubuntu or Debian (including on Raspberry Pi) seedbox.
The script was updated recently with some important improvements, like support for the latest Debian 10 (buster) stable release, and automatic Let's Encrypt certificates generation if possible (in case it fails, it falls back to self-signed certificates).
rTorrent is a text-based ncurses BitTorrent client based on libTorrent, great for usage on servers, while ruTorrent is a web front-end for rTorrent.