"PSA: SQLite WAL checksums fail silently and may lose data" so that's probably not how to sync sqlite; https://news.ycombinator.com/item?id=44672902

electric-sql/electric: https://github.com/electric-sql/electric :

Specifically, Electric is a read-path sync engine for Postgres. It syncs data out of Postgres into ... anything you like. The core sync protocol is based on a low-level HTTP API. This integrates with CDNs for highly-scalable data delivery.

electric-sql/pglite: https://github.com/electric-sql/pglite :

Embeddable Postgres with real-time, reactive bindings.

"Using Postgres for Everything" https://news.ycombinator.com/item?id=40420474