Sigh, being an old geezer here I can't shake the feeling every other show HN post is stuff we did 20 years ago just reinvented (sometimes wastefully). Yes, we had 3D on the web then. It was called VRML. We didn't have Svelte but somehow UI work didn't take years and an army of coders to put together. Something went funny in the last couple of decades. Back then I thought we'd be coding much cooler stuff in 20 years.