In collaboration with the company ObjectBox in Munich, we are developing and building autonomous drones that inform each other of their position, i.e. "synchronise", and can therefore fly in formation as an autonomous swarm. The aim is to demonstrate the speed and versatility of the decentralised database developed by ObjectBox and to bring it closer to less informed viewers through an interesting demo application. We develop a large part of the hardware (self-built drones) and the software ourselves.