

If you end up going with a SFF build, I would recommend a dedicated GPU for Jellyfin. Nothing fancy, just a low profile GTX-1030 or RX 550 to handle the transcoding. Otherwise you’ll probably run into high CPU spikes while watching content from browser or some smart TVs.
This is really the truth. Auto-updating is really bad form when you are getting into server management. The first admin position I had back in the day had the rule that no automatic updates are to run, a manual update can only be run after 1 month of that update being released, and it had to accompanying documentation confirmed before it could be approved. The one time we did not follow that we ended up having to re-image the server in question from backup (as that was the quickest solution to getting it back online).