Doom Running on a Regex Engine

I like this, but the writeup is so Claude that I suspect the regex was written by Claude too :( Which is a shame, because the 'Doom running on...' space is one of the ones where I treasure articles written by motivated hackers (who may use AI, but do some work - idea, iteration, AI as tool not author - themselves.)

(I saw no info what amount of involvement the human author had here so the article's Claudeisms are leading me to feel Claude-ish about the whole project. That may not be fair.)