This is a proof of concept application that grabs all keystrokes typed into the current X11 session and injects a harmless command whenever a Gnome Terminal window is given focus. This is possible even when confined by technologies such as the Ubuntu Snap packaging format. It is based on xteddy, whose original README follows. Original README This directory contains the source to my creation 'xteddy', version 1.1 of April 22, 1998. The single file xteddy.tar.gz contains all you need. If you have problems with binary FTP or GNU zip, there is an uncompressed xteddy.tar, too. Stefan Gustavson (stefang@isy.liu.se) The latest source you will get under ftp://ftp.isy.liu.se/pub/colour/xteddy/xteddy-1.1.tar The Homepage of xteddy is under http://www.itn.liu.se/~stegu/xteddy.html