[novaleaf]

I think that now, Firebase is build on Google Cloud Datastore. I have used Datastore in production since 2015, and have had no outages, but if I had to do it again I think I'd go normal RDB, just because query support is extremely limited (no full text search) and "schema change == data rebuild" issues.

[dfee]

Do you mean that you’d use something like a managed Postgres AND build and run a backend service that interfaces a web client to that database?

[novaleaf]

yeah exactly.