rqlite is a lightweight, open-source, distributed relational database written in Go, which uses SQLite as its storage engine.

Nienke Eijsvogel, Ruben van Baarle and Daan de Graaf recently ran Jepsen-style testing of rqlite. Their tests showed that rqlite maintains linearizability of record insertion and modification, provided strong read consistency is enabled.  Check out the full results on GitHub.