Allow customization of meta

[tonyxiao]

We are planning on putting a JSON.stringified object into the description field in zod and would like to use it to customize the display of things like title and description. Would it be possible to pass an option and allow the schema to be customized as you walk down the tree?

[StefanTerdell]

That sounds like too much of an edge case to me, but you're welcome to fork the project.