As like any self-respecting geek, I have made some projects, more or less serious, there’s a list of them:

Programming

• nanoCMS - I have used this little engine to serve last iteration of my homepage, written in PHP and lightweight
• ArdGPS - result of playing with Arduino, small GPS tracker, useful for tracking the route of a walk/bike/car ride…

Systems and servers administration

• Running XMPP/Jabber server with transports
• Running Matrix server with bridges with Discord, Telegram, XMPP/Jabber and IRC
• Counter-Strike 1.6 server
• Quake III Arena server
• … and much more. If you want to challenge me, contact me! :)