Is the software open source?

We are proud to have built our software platform on open source projects like Debian GNU/Linux, openHAB and many others.
Accordingly, we are very interested in releasing our own software under open source licenses to ensure long-term maintainability and to allow easy integration of alternative open source projects.

Our operating system software (drivers, OS, applications) are generally released under an open source license.
For the firmware this applies as far as it is legally possible.
This means in some cases that the source code is available but not OSI compatible.