[sod]

Saying typescript is slow because zod is slow is like saying c++ is slow, because javascript is slow. Not to say that typescript is quick in any way (how could it be, as something written in javascript). But letting typescript execute code to infer types in a large scale application seems like a self inflicted issue.

[anamexis]

What do you mean by that? I don't think Zod is doing anything special as far as the TS type system goes, although its types are necessarily complex to make its "magic" work. But it's not executing code to infer the types

[dimgl]

But TypeScript IS slow. It just so happens that the issue is currently with Zod but JavaScript in general has always been less performant than other lower level languages. This is why JavaScript tooling is all built in other languages.