The project started in 2018 as a replacement for RocksDB running inside of CockroachDB. It was originally based on an incomplete Go port of LevelDB started in 2011.
https://github.com/petermattis/pebble
https://github.com/petermattis/pebble
https://github.com/petermattis/pebble/tree/master/docs
Cockroach Labs
2018