I really wish I could find a site for 2D geometry/pedagogy which would "click" as well for me, and be as useful as:

https://www.blockscad3d.com/editor/

has been. Really miss directly programming in PostScript in Altsys Virtuoso on my NeXT Cube.

I've tried Processing and Nodebox, and they haven't quite clicked, and scripting in Inkscape feels clunky....