DriftDB: An experimental append-only database with built-in time travel

Oh this is great timing, I might give this a try right away.

I'm mid way through a small project to keep track of [a specific rpg'] game saves over time. Ultimately appending likely 10s of thousands of 8Kb files worth of data in a way that I want to be able to scrub through the history of them, and query for a specific type of change in the history. While also being able to query a completely different axis of which set of saves is currently in a specific state, or has some property.