This seems highly useful. We have this in TS with Zod, Runtypes, and a few others. One may use field level validation or top level validation, irrespective of

This seems highly useful. We have this in TS with Zod, Runtypes, and a few others. One may use field level validation or top level validation, irrespective of both! I do see the validator crate as an existing/similar solve. One could also write a custom deserializer. Regardless, glad to see more energy here