[SJMG]

It's the standard for mobile. That said, in server-side enterprise computing, I know no one who uses it. I'm sure there are applications, but in this domain you'd need a good justification for not following standard patterns.

I have used DuckDB on an application server because it computes aggregations lightning fast which saved this app from needing caching, background services and all the invalidation and failure modes that come with those two.