The keyword is "about to open up". Unless she has a written guarantee, it doesn't really mean anything tbh. Things might fall through. At least your new position is guaranteed.
Also, what were your reasons to wanting to move? That could be a factor as well.
I searched for examples of websites built with Django CMS, and I saw that the django-cms homepage already has a page dedicated to that: http://www.django-cms.org/en/case-studies/
Does anyone else have more examples? I am really curious about django-cms in the wild.
What is your specific goal? What are you trying to achieve with math? I would start there first. If your goal is to get a math major level of understanding of math, then I would look at what the standard curriculum is in universities.
Express.js is actually a combination of various modules. If you want to see the work being done, go to those individual modules.