[moonchrome]

That sounds like a very simplistic framework and I'm sure you could do some metaprogramming to abstract boilerplate. Like you couldn't do database multitenancy with those constraints.

I've used the int keys and UUID public keys on multiple projects - it wasn't an issue for EF core or RoR

[babbledabbler]

I'm simplifying a bit for brevity and we can do some abstraction to handle it so it's not that the framework is simplistic. I'm just having trouble justifying adding this complexity with two types of IDs.