Problem:  The screws to mount/remove an Arduino are tiny and hard to work with.

Solution:  A bracket that the board clips in/out of without any tools.  The base bracket’s mounting holes are designed for common screws that can serviced with a common #2 phillips screwdriver and are accessible while the board is in place!

The circuit board holes align with pins while flexible clips lock the board into place.   The clips are removable in case they break and extra clip storage is provided on the bracket along with references if you want your board to be level.