That’s spot on definition of what happening in here

+1 for fclones

Btw. Always wondered if the name possibly comes from Fucking Clones

I’m using this in my unraid. Scheduled weekly, just in case.

#!/bin/bash
#noParity=true
fclones group --one-fs --follow-links --min 256MB --name '*.mkv' --name '*.mp4' --cache /mnt/user/data/torrents/ /mnt/user/data/media/ --max-prefix-size 128MiB --max-suffix-size 64MiB --skip-content-hash  > /tmp/dupes.txt
fclones link < /tmp/dupes.txt