Would it be possible for owners who have a tablet that lacks the angle detection on their paint tablet, to use something like a joystick to define the brush angle and even pressure for purposes such as working with the new normal map brush or for people who only own a mouse?

It would be really useful, not sure how convenient and what other things that could work in the same way.
Is this perhaps possible already to do on Linux somehow with udev rules, Xorg or what not?

as far as i know a joystick is sending a step information in the exactly same manner as keyboard shortcut for brush size decrease/increase would
and how would you control the speed if it was possible? way too complex i think

you'd need to connect something a bit more advanced like a MIDI controller/keyboard. i asked about this feature (MIDI) a while back but no replies came

i think it's entirely possible to use a joystick to simulate brush angle. in fact, i've started (extremely slowly and at low personal priority) to work on something i call "OMG-input", which would give krita the ability to harness OSC, MIDI and Gamecontrollers (hence: OMG).

ha! can't wait then

Any news on this? IMO too bad we don't have gamepads with three analog sticks. Imagine: One stick controls position, one controls angle and the final one controls pressure. No tablet needed!