Zigbee - How to start?

Hi,
this is my experience with ZigBee.

My problems are related to the Ikea tradfri Switch.
The OpenHab ZigBee binding it’s working with the Lidl/Silvercrest Gateway, at the moment without issues.
The only initial problem for me was the configuration of socat to redirect the TCP socket on a virtual tty device, at begin I had some privileges issue, resolved with the correct parameters to socat.
Lidl Gateway use a Ember Chipset.