TheThings Gateway - Bee socket

Hi
Where may I find more information and documentation about the usage of the Bee socket ?
Thanks
Joerg

When we will open source the code and the design it will be possible to program the board to use other extensions. This is for expert users only but it would for instance allow the gateway to also support Zigbee, 3G, GPS, a different MCU. We would love the community to take the lead here.

What are your ideas to do with it?

Zigbee or 6lowpan first.
3G or NBIoT could be an option but that depends on the power consumption of the gateway - might I run it on solar power and LiPo?
Thanks
Joerg