Use Refined for core domain?

[pauljamescleary]

I would like to enforce invariants in the core domain.

A few issues that always troubled me:

1. Do we have a separate "layer" for JSON vs. our core domain model?
2. How do we enforce invariants in our core domain model while remaining compatible with json and database serialization?

It maybe possible to do this with Refined + Circe Refined.