Specialist in use of Linux, free and open-source software, and in security of bank payment technologies. Also interested in today's privacy challenges, low-bitrate communications, and building a house as a hobby. Lives at the biggest lake of Central Europe, Lake Balaton.

HELLOTUX
Promoting free software all over the world. Free software merchandise from Europe, in partnership with the leading Linux distributions and free software developers.
www.hellotux.com
 

Education
Teaching digital competences for children between ages 9 and 14. The goal is not understanding ancient software but understanding the digital future.
www.fenyvesirefi.hu
 

Consulting
IT consulting and services for government institutions. GAFAM-free and GDPR compliant local and EU-based systems on the base of open source.