Print in place universal laptop vertical stand

My first print in place model. Got inspiration from a napkin holder I've seen once. The stand fits any modern laptop with thickness of up to ~35-40mm, its gravity center is low, and it stands rock-solidly. 

Print on flat side, use supports (tree or normal, support placement - everywhere). I’ve printed my model with PLA+, 0.2 mm layer height, 3 walls, 20% gyroid infill. It turned out to be very strong, probably 2 walls and 15% infill would work too.