This was a stretch goal, multiplayer. One earbuds versus the other. It's not that hard to implement but I've got a few other things to clear away first.

Using them for distributed computation though? interesting use of free will xD

Compute one half of the screen on each

Left ear for the right eye and vice versa

Single player, but stereoscopic? One display from each bud.

"VR Doom has been ported to an earbud(s)" ;)