I'm not to most positive about AI generated stuff, especially in terms of text and images. But with code, it is a neat tool.
I think it is especially cool in building stuff to retro specs. It has allowed many to do stuff in days or weeks that previously could have been months. Projects that don't really have much value in terms of money but are just nice to have kind of things.
This project is a great example of this.
It does come back to that question though of who will pay for the code generation but that is something for someone else.
I'm more impressed by this than AI-generated images; a few tiny imperfections in the latter are not a big deal, and even humans often make mistakes with little effect, but code has a far higher bar of correctness to meet. The fact that AI can even generate working real-mode 16-bit code reasonably well and not turn into Electron-levels of inefficiency was most surprising.