Wow! Didn't expect to see it on Hacker News again.

Hello, hi! I'm Oleksandr Kaleniuk, and I wrote the thing back in 2020. Please don't take it all too seriously. There was COVID-19, I had nothing better to do.

I did write a new book since then, and my publisher would bite my head off for missing this opportunity. It's called Geometry for Programmers and it was published by Manning just this year. https://www.manning.com/books/geometry-for-programmers It's about curves, surfaces, transformations, homogeneous coordinates, rational splines, distance fields, and voxels. You don't have to know any advanced math to enjoy the book, but you might want to know a bit of Python. It's for programmers, so the didactic tools there are mostly code, not theorems.