Consider GitPitch #20
Description
I was wondering if you'd considered using GitPitch to create slide decks?
Website: https://gitpitch.com/
GitHub Repo: https://github.com/gitpitch/gitpitch
Demo slide decks: https://gitpitch.com/docs/samples/
I think it would make updating the slide deck template easier. Each course could branch off master, which would contain the slide deck template and any common content (e.g. logos, monthly theme, news, etc.). The course branches could be rebased on master to get all the template updates. I figure it has to be done manually on each course now since they're in separate repos?
GitPitch slide decks are fully themeable, and can be viewed online at http://gitpitch.com/{account}/{project}/{branch-name}.
Each branch can also still be easily downloaded through the GitPitch online presentation's menu, so students wouldn't have to use CLI or download the whole repo to get the materials for a specific class.
There's also an option to print the slideshow, so student can keep notes.
It has some other interesting features, like the slide content can refer to source files in the repo by line number. I figure current references to source files are duplicated in source and in the slide deck.