It doesn't appear to be doing much more than replication though. https://litestream.io does that for sqlite already. (Edit for clarity) GitDB seem to have more "distributed" ideas in their roadmap for v3 maybe.
Let me know when you do so I can chip in with some money.
If this sounds like an append-only log that's precisely correct; I just want it to work efficiently with fixed memory and ideally as an embedded library. Thus sqlite.