Repository address is missing?

I’m a fairly new Jellyfin user and I wanted to fiddle around with plug-in etc…
Under settings it is possible to add an address for the repository, but I can’t find any address for a repo.
Am I missing something? There are plug-ins installed.

My jellyfin installation runs perfectly within a synology docker.

There’s a bit of oddity with the migrations that caused some installs not to receive the plugin repo. I believe this was addressed for future versions already, but I’m not 100% sure. The official repo is generally labeled Jellyfin Stable and has an address of https://repo.jellyfin.org/releases/plugin/manifest-stable.json