This is still a work in progress but seems to be working fairly well.

New to Mac from the PC world (kinda want to see what all the fuss is about).  Some things I like but the “you have to do it Apple's way” is really annoying - why is the power button on the back where I can't get to it, especially when the computer is on a shelf?

Things still needing to do:
- adjust the button position to better line up with the Mini's button.
- add some kind of compliant spring to hold the button in place and return.
- clean up the inset to better fit the Mini.

I've been printing recently with an 0.6mm nozzle and 0.3mm layers, due to the coarseness you may want to make things finer but the layers are all hidden under the Mini.  There are a couple of bridges but you probably don't need supports as they're pretty short.  Model needs an M3 bolt about 12-14mm in length.