Watched the whole video, scrolled end to end up and down, searched high and low could not find any detail about what code it generates. Generates a bit of an orange flag to me when I see a major feature teased and then absolutely no detail about it.
We generate a simple React app with two files (App.tsx and package.json). It imports the component library (currently Chakra UI) and provides basic code for what you designed in Noya. The code can be used as a starting point or as a reference for adding your design to an existing React app.