DOKK / manpages / debian 12 / xhk / xhk.1.en
XHK(1) XHK(1)

xhk - HalfKey Xorg Driver Utility

xhk [-m] [-d] [-h]

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.

increase debug verbosity levels.
display a friendly help message.
mirror mode - All keys are changed to reversed keyboard layout.
X11 related keycode test.
show xHK version

Kieran Bingham.

January 2019