[xnappo]

Right I'm not primarily interested in syncing the actual media files. I'm only interested in the metadata. Looks like that should be possinle without Premiere.

Correct - you don't need a subscription for anything to do with metadata syncing. The Sync feature referred to related to premiere is copying the actual media, which our addon does not support either.

Confusingly(sorry), there is also a server side plugin called SyncQueue which (basically) keeps track of web socket messages so that a list of things changed since 'date x' can be requested at startup when the client has been off.

Websocket code is here:
https://github.com/MediaBrowser/plugin.v..._client.py

Interfacing with SyncQueue addon here:
https://github.com/MediaBrowser/plugin.v...nc.py#L112