Extending the wiring for the AC unit’s controller board (Credit: HowToLou) In the case of widely available window AC units you can indeed use them as designed in a window, or as [HowToLou] is in ...

They allow you to swing the storage rack out from the wall and slide out the storm window, paneling or ... a few dollars more you can get an AC grade of plywood that’s been sanded on one side ...