Recently i bought a zuoya gmk67 keyboard, it doesn't have a function keys row and has a know for volume control. Unfortunately, if you plug your gmk67 in a linux machine you will notice that using fn+1 will not produce f1 as expected, it will produce a screen brightness decrease, and if you change the physical switch in the back for the macOS mode, the function keys now work, but the modifier keys don't, quite stressful.
Fear not, you can either remap the keys, as in this gist, or alter your system configuration so the keyboard functions normally, as seen in the gist Using GMK67 keyboard in linux. Function keys not working with Fn!.
For this gist, we can simply remap some keys while the physical switch in the back is in windows mode. For that let's install keyd, a remapping tool daemon.
