[nextaccountic]

Maybe consider sled? https://github.com/spacejam/sled

It's been abandoned for some years, the author was working on a new engine for it and in the last 5 days they started working again on sled proper. However, it's pretty good the way it is (the 0.34.7 release from 2021 https://crates.io/crates/sled), despite the beta warnings

More info here https://dbdb.io/db/sled

(Note, non affiliated to the author, just liked the project)

[cmrdporcupine]

These days I've been using fjall, which has the benefit of being actively worked on: https://github.com/fjall-rs/fjall