Bernd Öggl is an experienced system administrator and web developer. Since 2001 he has been creating websites for customers, implementing individual development projects, and passing on his knowledge at conferences and in publications.
Michael Kofler studied telematics at Graz University of Technology and is one of the most successful German-language IT specialist authors. In addition to Linux, his areas of expertise include IT security, Python, Swift, Java, and the Raspberry Pi. He is a developer, advises companies, and works as a lecturer.