this post was submitted on 14 Apr 2025
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GitHub - jfedor2/two-ball-trackball: DIY trackball with two balls (github.com)
submitted 4 months ago by tal@lemmy.today to c/trackballs@discuss.tchncs.de
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[โ€“] cronenthal@discuss.tchncs.de 7 points 4 months ago (1 children)

Nowhere on the github page is the obvious question addressed: "why?"

[โ€“] tal@lemmy.today 3 points 4 months ago

So, obviously depends on the individual, but I've used a four-direction scroll wheel before, and while the functionality of the balls appears to be configurable, it looks like that's what they're rigging up the second ball to do in the screenshot.