The HAPI project is focused on using Open technologies, meaning we build our technology on top of hardware and software that is Open Source. These currently include Arduino and Raspberry Pi hardware, along with the Linux operating system, the SQLite database system, the Python programming language, the git version control system and Kanboard project management software.
While there are proprietary technologies (some sensors for example) supported by the HAPI technology stack, we try to keep this to a minimum.