I've adapted this theme for use in a tutorial - it looks great, but one issue is that since the material is more static than a blog I'm using the sidebar to enumerate it. This works very well when the window is large enough, but on smaller screens the sidebar crops content without any way to scroll (at least on Chrome/OSX).
I'd like to figure out how to allow the sidebar to scroll and/or dynamically resize its content as appropriate. I may well look into this myself and send a pull request, but figured I'd file the issue here to let you know and welcome any thoughts you have. Thanks!