Interesting.. I'd rather write typescript types than Zod schemas. I haven't used JSON schema, but going TS to Zod was straightforward and really pleasant
Typescript can't understand types as objects, but it can understand objects as types (using typeof). So starting with objects and generating types is more natural.
Also if you start with objects you can express runtime conditions that are not possible with types, for example maximum sizes.
Zod is quite a bit more general than JSON schema because it can express transformations not just validations.
