Breaking hardware boundaries, transcending the classic dichotomy of an OS, this is what OpenHarmony is about. Catering the needs from tiny sensors up to powerful systems, from edge to cloud. In this presentation Stefan will address questions every FOSS developer will have, when hearing about OpenHarmony for the first time. If you are curious about the architecture, used FOSS projects, or want to know more about contribution guidelines and start picking in the code this talk would be a good start. Stefan will talk about the multiple-kernel approach, the distributed architecture and layers. He will also explain our public development infrastructure and contribution flows.