Recent related discussion (right?): https://news.ycombinator.com/item?id=15616637

Yes. Chalktalk was the main inspiration for that project.

Is this Ken Perlin of “Perlin Noise” fame? If so, it’s great to see he’s still doing stuff.

Yes. “Still doing stuff” is an underestimate. From what I gather, he is very active both at the academic and the industry.

Been waiting for this for years. It's so great.

It would be cool if it could also do 3D.

The second animation in the readme file demonstrates 3D.

It does. It also works in VR.