Nikos Roussos is an open-source engineer and digital human rights activist. He is at the board of Libre Space Foundation and a core contributor to the SatNOGS (Satellite Networked Open Ground Station) project.
He has contributed to the Fedora Project, helping on developing a Free (as in speech) operating system.
Contributor to many organizations, such as FSFE and Athens Hackerspace.
He has been a speaker in computer conferences such as CCC.
https://roussos.cc/
https://events.ccc.de/congress/2017/Fahrplan/speakers/5945.html
https://reps.mozilla.org/u/comzeradd/