Touchpad: Libinput tap-to-click mapping
It seems that at this moment there is no way to remap touchpad virtual buttons in Wayland session. In X.Org session I'm able to change the mappings using this config snippet:
Section "InputClass" Identifier "libinput touchpad catchall" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "libinput" Option "Tapping" "on" Option "NaturalScrolling" "on" Option "TappingButtonMap" "lmr" EndSection
TappingButtonMap is what I really miss in Wayland session. It's much more comfortable for me (and maybe some other people) to have 2-finger tap bound to middle click and 3-finger one to right click. Maybe it's possible to expose this functionality via gsettings or some other way?