Cool! Reminds me of Fractal Database, https://github.com/fractalnetworksco/fractal-database
PoC Django ORM replication engine that supports master-master replication in a decentralized context. With a Django based solution you can sync between any DB Django supports so MySQL <-> Postrgres <-> SQLite is easy peasy.
Disclaimer: I am the author and haven't written the README yet, but cool to see similar stuff nonetheless.