SOLVED: Jellyfin doesn't work

[TheDreadPirate]

I can't think of a good reason why you would install an app, or have its data directory, or put your media library in your home directory.  The point of a home directory is that the files are accessible to you and you alone (not including root).You would have to add jellyfin to the group ownership of the folder.

Code:

chown supertanno:jellyfin /home/supertanno /home/supertanno/jellyfin
chmod 770 /home/supertanno /home/supertanno/jellyfin

This might also work?  Slightly more restrictive permissions.

Code:

chown supertanno:jellyfin /home/supertanno/jellyfin
chmod 755 /home/supertanno
chmod 770 /home/supertanno/jellyfin

But really, nothing you need to regularly share with other users or processes should be in your home.