Starting early in 2015, we had the target to have a fully functional system for the Chaos Communication Camp 2015 in Mildenberg. And, we wanted to have 4500 pieces of hardware to give them away as the event badge, so it was a just in time development and production.
It is a fully functional SDR transceiver, capable of booting either into the firmware the well-known HackRF, or into custom firmware, capable of using all the onboard hardware peripherals. This allows to build sophisticated standalone SDR applications.
The project is fully covered by the GNU GPL