[pyrale]

> If you make a change in the storage layer, you could inadvertently end up changing your user-facing API and breaking something for them.

Here is the thing though: if you have a proper type system, this breakage will happen during compilation. That's a good opportunity to understand what's up there without impact.

So it actually becomes a benefit to be able to move things at one end and be able to see the effects at the other end, not just a protection or a requirement.