Enable nbgitpuller

nbgitpuller lets you distribute content in a git repository to your students by having them click a simple link. Automatic merging ensures that your students are never exposed to git directly.

https://github.com/jupyterhub/nbgitpuller

This would ease the deployment of course material by teachers that don't won't need to go all the way to using travo, or for whose students opening a terminal would be a barrier.

Bonus: see how the same approach could be used to launch travo rather than nbgitpuller.