Similar idea: https://youtu.be/c4uavQRBUko
Also, I can’t tell if this is satire…
Isn’t it already built in into OS X though? Grep for Mouse Keys here: http://www.apple.com/accessibility/osx/
The feature has existed in X Window for at least thirty years. But I suppose everything old is new again?
I think the implementation you are referencing works more like a joystick (i.e. press/hold up and it will continually scroll up). This repo is like a trackpad where the travel corresponds to a swiping action with the finger.
Indeed, you are correct, it wasn’t entirely clear after reading the project description.
After reading your comment I watched the video and it looks great actually, I really like the idea! Now I kind of wish X had something similar ;)