This is content marketing for a open-source SQLite extension called `sqlite-sync` [0]. It seems pretty cool, implementing CRDTs and some networking directly in SQLite.

Unfortunately this extension "is tightly integrated with SQLite Cloud." It doesn't support peer-to-peer syncing or self-hosting a central source of truth. The project is really just a client for the sqlite.ai cloud service.

[0] https://github.com/sqliteai/sqlite-sync