Makes me think of what this would look like generalised... drawing with lines and shapes that have their own programmable constraints.

See Sutherland's Sketchpad demo (1962!) https://www.youtube.com/watch?v=495nCzxM9PI

Really this is when drawing goes beyond the physical world, and we get to start treating the computer as a co-worker. Snap-to-shape is the first step.

Looks good, but no Android version? The wacom sensor on a Samsung tablet is far more precise than the larger "pen" used for iPads.