As mentioned, this is a remix of https://www.thingiverse.com/thing:5773368.
The original had really sharp edges so I rounded off the corners to make it pleasant and safer to hold. I am using the spacer adapter so I know it works.
The attached file is for the driver side wireless charger and it accounts for the 13 mini being in a simple case as shown. I'll find some time to upload one for the passenger side.
The author remixed this model.