Nice. I do backend web dev, and it's sometimes useful to have a lightweight testing frontend that's more flexible than Swagger. I've had a lot of success vibe coding my way through these frontends with Claude by rapidly iterating on a single file containing HTML + CSS + JS. It's quite fast to get something good enough working, and putting everything in a single HTML file format keeps it simple enough for me, a guy who doesn't do frontend, to mostly understand what's going on. "All in one" HTML file is a good trick :)
