The Raspberry Pi Zero 2 W is good enough to run Klipper on, but I couldn't find a way to mount it on my Ender 3 printer that was slimline and easy. So I made one.
Everything should simply click together, and you can turn the clip/holder in a bunch of angles according to your needs. The clip fits on those wide aluminium rails.
Recommend printing as solid as possible with a well-tuned printer as the tolerances are pretty small. Also use supports for best results. Regular PLA works, so anything better probably will as well.
The author marked this model as their own original creation.