I run Jellyfin in a multi-arch cluster because I hate myself, and this would force me to think about where Jellyfin/Postgres is deployed because Postgres databases aren't portable.

I already had to do that for my authoritative PG deployment, and my media manager shouldn't require a full RDBMS.

Using SQLite for Jellyfin has made running it wherever really, really easy, same thing with doing backups and lazy black box debugging.