@sun @birdulon @not_benis I am currently looking for a usb numpad for my laptop kit, because a full-size keyboard won't fit properly in the bag. However, I recently discovered that I installed https://f-droid.org/en/packages/com.guillaumepayet.remotenumpad/ on my fone a while ago and forgot about it.
So as soon as I get bluetooth drivers on my laptop I will find out if it is good enough for use. Mainly that use would be wc3, which I haven't got working yet anyway. Something about wine vs wayland.