Provided by: xhk_1.2-3_amd64 

NAME
xhk - HalfKey Xorg Driver Utility
SYNOPSIS
xhk [-m] [-d] [-h]
DESCRIPTION
xHK is a half keyboard mirroring implementation to help one handed typist.
Running xhk detaches the keyboard, and intercepts all input; processing it for space bar pushes as it
goes. The space bar acts as a modifier if it is held at the same time as a standard letter. Modifying
acts to mirror the input such that key presses are mirrored down the middle of the home row. Pressing
space, and then releasing will still provide a single space character.
OPTIONS
-d increase debug verbosity levels.
-h display a friendly help message.
-m mirror mode - All keys are changed to reversed keyboard layout.
-t X11 related keycode test.
-v show xHK version
AUTHORS
Kieran Bingham.
January 2019 XHK(1)