I tried it out to see if I would want to use this instead of miniz which I am using at the moment, but the example seems to be missing some includes.

I filed an issue with the details: https://github.com/Ferki-git-creator/stb-zip/issues/1

Edit to add: I see now that you also did the Uprintf submission from a few days ago (https://news.ycombinator.com/item?id=44960664) which had some baffling bugs, and then you mentioned that you were using AI for some of it. That might explain the missing parts here too.