[webdevladder]

Full-stack rich schemas, not the poor lossy JSON Schema or other language-agnostic ones, are so nice for long-term quality and development velocity. You get to categorically avoid bugs that drag teams down. Zod 4, ArkType, and Valibot are all great.

[smaudet]

This is the problem inherent in web dev I suspect. JS developers thought they reached the zenith of programming because they had a type system and could realize some gains via strong typing checks applied to what would otherwise be network calls.

However, at a certain point, you're better off not writing a web app anymore, just an app with a somewhat wonky, imprecise runtime, one that lacks any sort of speed and has many drawbacks.

And you lose one of the most fundamentally important parts of the web, interop. I'm sure other langs can be made to speak your particular object dialect, however the same problems that plague those other type systems will still plague yours.

Which circles back to my issue, no, sticking your head in the sand and proclaiming nothing else exists, does not, in fact, make things better.

[webdevladder]

You've missed the point, it's inherent in any serialized communication, and the gains are far greater than a type system. Protobuf and friends, and every type system in existence, pale in comparison to runtime capabilities and guarantees.