I can't parse this. It's a Rust library in a C++ browser but you need a Python library to use it?
Beyond that and given how glitchy Tridactyl is on firefox I'll be sure to check this out. I'm just a bit bummed that it's yet another chromium-based browser, but I guess there's no real viable alternative these days.
EDIT:
12:47:32 CRITICAL: Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::NoProfile)
[1] 567012 abort (core dumped) qutebrowser
I guess I'll retry in a little while...