Filippo Valsorda's Typage[0] is amazing, but I was a little annoyed that there wasn't a ready-made demo repo I can immdiately clone and serve from localhost.
So I made this, which admittedly is so simple that someone could've easily vibe-coded a more complex version in five minutes, but it's left intentionally bare-bones as a blank-slate intended for people to clone[1] and re-host.