This only works for something noninteractive that always executes the same code (unless I'm misunderstanding the LLM's description of what it did)
On the other hand, at least these folks build and create and I prefer wrapper demos instead of a perfect emulator that will never finish.
Nevertheless, on the feature side of these wrappers I really miss a fast-forward option. If you go pseudo-emulation, then at least come up with some convenience features.
Maybe this is the irony: the ff button is perfectly legit, I used mine many times with the 486DX3-100 and Pentium 133. Back then it was called turbo button.