Because I couldn't find one, a trivial example of a reagent app factored across multiple pages and namespaces.
By keeping the core r/atom in its own namespace, we can refer to it from any other namespace, though probably there's some more brilliant way to do this, probably using re-frame.
I put this here because I spent all day trying to find an example of this, and didn't.
To test it, run lein figwheel.
built with reagent-template
Do whatever you like with it. MIT License I guess, but they did most of the work.