In the same vein, shameless plug for my own library, Spartan Schema: https://github.com/ar-nelson/spartan-schema https://github.com/ar-nelson/spartan-schema I

In the same vein, shameless plug for my own library, Spartan Schema: https://github.com/ar-nelson/spartan-schema https://github.com/ar-nelson/spartan-schema It does the same thing as Zod, but is much smaller/simpler and its types always have a JSON representation.