Good question. Asked the developer, so feel free to chime in: https://github.com/Angablade/JellyfinFederationPlugin/issues/1#issuecomment-3217864250

Haha, you certainly don’t have to host it at a public url over http.

What sort of conflicts?

Jellyfin plays the media. It doesn’t make/produce/edit or upload the media. Think of it as DIY Netflix service

Keep in mind this isn’t federation. It is a way to access multiple independent servers via reverse proxy.

Here are some thoughts from Jellyfin-offtopic:

• I wouldn’t trust it especially with the new DB coming out. No way Jellyfin’s own DB supports multiple servers. It would be up to the tool to keep track of everything. And I’m assuming only one person is supposed to run that thing on multiple servers.
• How would this work when multiple people want to connect to others at the same time?

Apparently someone else released a Federation plugin 11 months ago. And looking at the feature request on Jellyfin end

Yep, it has already been posted here. Cheers!

Yep, this was mentioned in that thread and it is so impressive it deserves a dedicated topic to promote itself. Seems it has only existed for a few hours!

Post inception. That post was linked from this thread, hahaha.

Oh wow, repo is https://github.com/LLukas22/Jellyswarrm Jellyswarrm is a reverse proxy that lets you combine multiple Jellyfin servers into one place. If you’ve got libraries spread across different locations or just want everything together, Jellyswarrm makes it easy to access all your media from a single interface.

Working

• Unified Library Access – Browse media from multiple Jellyfin servers in one place.
• Direct Playback – Play content straight from the original server without extra overhead.
• User Mapping – Link accounts across servers for a consistent user experience.
• API Compatibility – Appears as a normal Jellyfin server, so existing apps and tools still work.

⚠️ In Progress

• Websocket Support – Needed for real-time features like SyncPlay (not fully reliable yet).
• Audio Streaming – May not function correctly (still untested in many cases).
• Automatic Bitrate Adjustment – Stream quality based on network conditions isn’t supported yet.

🚫 Not Planned

• Admin Functions – Server administration (user management, settings, etc.) won’t be supported through Jellyswarrm.----

Thanks, this helped me better understand what is going on. Tried to formulate a response: https://github.com/nextcloud/server/issues/26233#issuecomment-3217564155

Thank you for checking!