Germany has a well covered repeater network for DMR already. Nevertheless, a mobile DMR hotspot is a perfect alternative whilst on travel. It makes your DMR independent from coverage and frequency allocation.
BlueDV is a compact solution. A tiny box with all in:
The BlueStack connects to the PC. The PC could be any computing device that is connected to the internet. The software BlueDV manages the digital voice streaming into the network, e.g. DMR / DMR+ / etc