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Full stack developer.
As a main spare-time activity, I maintain VPN-over-DNS, that is made of:
some open-source client software for data exfiltration, for those times when everything else is blocked, available on Windows, Android, Unix/Linux and Mac OS X;
a free VPN service to connect from these clients to the Internet by means of DNS tunneling.
By day: 3D printing, electronics, ...
By night: programming (network and security), Angry Birds, ...
