I'd like to see this done with tests as the input, and the working app as the output. Then writing an app would be as simple as defining the tests it must pass.
The prompt contained a few react examples with annotated English descriptions that were similar enough. You’re not seeing the entire prompt and as impressive as this is, it’s likely that you’d end up writing more code trying to get it to do what you want than if you just wrote it yourself. Future GPTs may of course be better, but there’s a bit of “magic” to these demos that the author isn’t super upfront about.