Streaming Torrents with peerflix on Raspberry Pi - YouTube
Update with guides and links, see comment) Pi zero for PiVPN & Pi-Hole; Pi 4 as torrent download station with PIA VPN mounted to Synology : r/raspberry_pi
Installing Deluge on the Raspberry Pi - Pi My Life Up
How to convert Raspberry Pi into a 24x7 Torrent Box
Installing BitTorrent Sync on Raspberry Pi - A detailed tutorial on setting up your Pi to run a replacement for Dropbox
Low End Tech - DIY Raspberry Pi Torrent Server Project - YouTube