I made this wall mount remix because the sockets where I wanted to put my Google Nest Mini were too crowded, and wouldn't accept extra width on top of the power adapter.

Attach the mount to the wall with a Tesa tape (or similar)

In the image you can see I printed 2 rectangle primitives (your slicer can do this easily) of 1mm height and glued them (to avoid wobble)

Print the hook with solid infill.