Manually create library with a script?

[Efficient_Good_5784]

When using the built-in worker it does identifies most of the movies, but creates a lot of mess by including extras, misinterpreting nested structures, and so on.

Are your media files correctly organized how Jellyfin expects them to be? You're not supposed to nest folders beyond what Jellyfin expects.

Take a look at the documentation:

https://jellyfin.org/docs/general/server/media/movies

https://jellyfin.org/docs/general/server/media/shows