FaunaDB is a strongly consistent OLTP database with a hybrid document-relational data model accessed via a NoSQL query language (FQL).
FaunaDB was originally created by Fauna Inc. and lived as a database-as-a-service. The open source FaunaDB project consists of the original service code, drivers in multiple languages, and CLI.
See the FaunaDB repo for details on building and running the database service. The documentation for FaunaDB lives at docs.faunadb.org. It is currently a port of the documentation that used to live at fauna.com.
More information on drivers may be found at the respective driver repos:
The FaunaDB open source project is still at a very early stage. Although source code is available, there are no official releases yet for the service itself. If you are interested in contributing, please get in touch.