Slightly unrelated but - isn't there a super cost-effective way of quickly whipping up a CRUD API with minimal configuration? Often I implement fairly backends in Java or Go that could might as well have been "configured" from the beginning, instead of implemented each time.

If you're into node, you might want to check out json-server. A single json file with one sample entity is the basis of a full API. Check it out at https://github.com/typicode/json-server