Various musical widgets made with the first-generation Leap Motion hand tracker. I am most proud of the "flywheel," which augments a Rock Band 3 keytar with insanely expressive pitch-bending and parameter articulation abilities; a video performance can be found here.
See instructions here for compiling leap-cffi. Afterwards, simply run poetry install.
Don't forget to start the Ultraleap Tracking app and to plug in the device before running any scripts.
The Python library itself lacks documentation, but the code is easy to read and lines up nicely with the leapc documentation.