Liked it. For ease of use it'd be more handy when one does't swap but adds: (the way you PWN YouTube)

Eg.

https://github.com/reidrac/canvas-raycasting (repo)

https://5mgithub.com/reidrac/canvas-raycasting (Doable??)

Or just 'f' for fork:

https://fgithub.com/reidrac/canvas-raycasting (Doable??)