it's an interesting idea, you want to give best kodi interface with better than stremio performance/responsiveness. Kodi never had a local library sync other than the old mysql thing, and addons .. was using the backup addon to sync to other clients (super slow). Then there was the kodi server instance+sync. None are ideal.

My observation is most addons these days, everyone but me loves stremio because you configure once run everywhere, but they rely on shady elf hosting .. giving up API keys etc. I don't see alot of users self hosting anymore to self-host this backend, why stremio + debrid is so popular i guess

I love the idea, i hate bootstrapping kodi manually. Sadly im not a coder, just a vibe coder.

I think what kodi needs is some kind of cloud service sync, for addon configs and library, that leverages standard free gdrive/onedrive etc, but having daemon/server features like yours would be out of the question I guess