I (co-)wrote or (co-)maintain(ed) the Greek translations of lichess.org (world's 2nd largest chess site), several projects on translatewiki.net (esp. Blockly, Wikireader, Open Images, Etherpad Lite & OSM.org), the DeaDBeeF and Audacious music players, Xonotic, DjangoBB, FDesktopRecorder, TeeWorlds, Simsu, DuckDuckGo, the iD editor, FocusWriter, OpenTTD, MapOSMatic, HexGlass, Vidalia, TextSecure, RedPhone, CuteMarkEd, SMPlayer, Enigma, HabitRPG, CKEditor, OSMTracker for Android, Plupload, Minitube and TinyMCE.