It looks really good in the video uploaded, but when I tried it myself it didn't look the same and was hard to tell what was going on. Not sure what the issue is.
Same here. The video looks cool, but what I see is much messier and hard to identify shapes and objects. Tried on latest Brave and Firefox on Arch Linux.
The video showcases his new version. The live version is his old version.
The poster has conflated two different projects with a similar goal I believe.
The videos seem to come from a closed source project made by an outlet called Grow Now Games.
https://ko-fi.com/grownowgames/
https://www.grownowgames.com/