So today I made a first rough sketch of what I had in mind. I really don't know if this would even work but this is my let's say Version 0.1.0:

I still didn´t test the new design but I found some other cool links

• https://electronics-diy.com/lc_meter.php
• https://de.steelseries.com/gaming-keyboards/apex-pro
• https://www.mev-elektronik.com/position-sensors-en/cam-sensor-rotary-type-6.html (The rotary design could be adopted)
• https://www.mev-elektronik.com/Inductive-Position-Sensors.html