It's tuned to be portable (can be disassembled), can hold the iPad at a 15, 30 or 45° angle.
It also has a spot on the back for holding the magic pen.
Printed in prusament black, low infill (10%?) but with 3 walls to make it sturdy enough.
Improvement would be to add a small magnet to keep the 2 parts together, they tend to slide, but not enough to be a problem
Fully designed from scratch by myself in fusion 360
The author hasn't provided the model origin yet.