It's been a hack for years, not merely recently. Maltron keyboards used to switch layouts between the "PC" and "Maltron" layouts by the keyboard moving scancod

It's been a hack for years, not merely recently. Maltron keyboards used to switch layouts between the "PC" and "Maltron" layouts by the keyboard moving scancodes around, in response to a physical switch at the back of the keyboard, back in the days of PS/2 keyboards.