Brother it is 100% open source. whatever part you failed to review was not something you could not review. You can fully compile it and self-host. It has no binary blobs required for it to function.

I’m sorry whatever ‘team’ you think you’re on is literally incompetent.

This is just racism btw. FOSS software is FOSS software regardless of the race of the people doing it.

Proper directory sorting and manual meta data hint entry is literally the number one way to make jellyfin behave properly. If you’re on linux kRename (available on flathub) makes this relatively painless.

Series (premiere year) [imdb or other db id]/
                             Season ##/
                                   Series Name - S##E## - Epsiode Title.ext

Works 99.9% of the time. As long as you have either the imdb id (mostly normie anime will be fine with this) or an anidb plugin or similar for the obscure stuff it’ll work 100% of the time.

This also allows easy searching of individual episodes outside of jellyfin, should you find an episode that somehow got corrupted or otherwise is just not what it should be.

Bonus: If you take the time to do this (literally 8-10 hours max for a collection of tens of thousands of episodes of shows) your library becomes much more portable as any competitor to jellyfin and any addons will now just automagically detect everything properly.