Yes, I've built an SPA using backbone + marionette before, but on top of that I needed something for UI, at the time I used JQMobile (huge mistake).

I really would like to avoid JQuery, and any other "big" framework like Angular. React, only gives me a render engine, so I need third party libraries for everything else, so, not an option.

I'm just interest in the frontend, I have clear the backend part.