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I would like to remap my Caps Lock key to either nothing or a key code of my choice.

To get the same behaviour across different environments (X / Wayland / non-graphical TTYs), and for learning how to do things like that, it is important to do it at the kernel level (so xmodmap/xkb solutions will not help me).

How would I go about that?

Also, will a kernel module be sufficient or will it need to be a direct code change?

Thanks for any hints!

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