Setting up Philips’ Hue Wall Switch Module with HomeKit and Shortcuts Automation

Right now, I am mainly controlling my HomeKit devices using the Homie App in my Mac‘s Menu Bar. However, in more and more situations I would like to have a proper light switch integrated into my HomeKit setup: imagine guests are coming who don‘t know about the setup, or you just enter the room and would like to quickly turn on some lights without pulling out your phone. Plus adding sophisticated (but intuitive) Shortcut Automations (e.