Cover for an conventional lightswitch (JUNG 306A)

On my way to make my home smarter, i needed a way to mount new lightswitches without modifying the original construcion (rental apartment).

this cover uses 4 magnets (⌀10x4mm) on the back to stay on the original lightswitch.

The top space is designed to mount an Solum ST-GR29xxx e-ink display and the free space on the bottom is used to stick a zigbee push botton via double sided tape on it. (I used MOES zigbee buttons ZT-SY-EU1S-WH-MS)