a document graph database that versions your data the way git versions code
TerminusDB stores JSON documents against a schema that describes how they relate, and keeps the full history of every change. Each write is a commit, so you can branch a database, diff two branches, roll back to an earlier state and merge work back together. Queries are written in WOQL, its own query language, and a complete HTTP API covers documents, schemas, branches, diffs and history.
The cloudimg image never creates the published default administrator login: no database exists in the image at all, and a password unique to your instance is generated on first boot into a root-only file. Traffic is served over TLS with a certificate minted for your instance, the database itself is bound to the loopback interface, and unauthenticated callers are refused rather than answered as an anonymous user. Paired with a deployment guide and 24/7 cloudimg support.