Do One Thing Well: Each program should focus on a single task and perform it effectively.

At the moment im not hosting a music server, but used to use Navidrome, it worked fine and used a small footprint.

Having all in one it’s more issues to solve, if something breaks, everything breaks.
Having all on Jellyfin is more convenient.

But adding hundreds or thousands of songs along with movies and episodes will create a huge database, more resources used, slower searches

Adding to this DDL store the content for a limited time. Some of the content after one week is almost impossible to find