z.infer of z.object shouldn't be non-nullable by default?

[renatorib]

I was trying to figure out how to create non-nullable schemas reading the documentation, but what I found is that is it's supposed to be non-nullable by default (until you explicitly add .optional, what makes sense).
Sooo, what can I be doing wrong?

[scotttrinh]

This is typically a symptom of not having strict (or at least strictNullChecks I think?) in your tsconfig.json. This is mentioned in the README as part of the installation instructions, but is often overlooked!