Very nice and I just did the exact same thing recently!

When I was in first or second grade (circa 1982) our family got a TRS-80 Model 3 and I started learning BASIC on it. I built a bunch of small little programs and even started an ambitious project: a full text adventure game called "Manhole Mania!". You, as the player, were a public works employee sent into the sewers to investigate strange noises. I never made much progress, maybe only a few rooms.

Just a couple of weeks ago I had the idea of just pointing Codex CLI at my unfinished game idea and "one-shotting" it. I wrote a fairly detailed prompt, constrained it to use Elm and to make it a static website. Gave a rough outline of a simple, but playable Manhole Mania. 5 mins, 43 seconds later:

https://manhole-mania.com/

Ack! There's a timer! I have to think fast!