@erisreg If you apply the BPF driver, yes, the buttons are programmable (and D.E. with a tablet setting might expose that to the user: so far on Wayland only GNOME and Plasma). Once the buttons are set, yes, they'll work in Krita, as if the commands came from a keyboard.If you don't apply the driver, or can't, the device will have an hardcoded shortcut layout. The listing is on the companion blog post. You can still reassign this shortcut inside Krita to do something else.