This is a simple design to mount your Home Assistant Yellow to the wall or any flat surface.   I wanted something that would use the existing case and screws it came with.

Because the Home Assistant Yellow PCB mounting holes is perfectly square, you can use these on the left/right side or top/bottom of the case.   Added bonus that the case is now shifted away from the wall just a bit for cooling and easy removal of the ethernet cable.

I printed on a Bambu X1C with PLA and stock slicer settings, but it should work on any printer.    Designed in Fusion 360, I've had to upsize all the holes by .02" to account for shrinkage when printing.

Enjoy!