I have to say thanks for this how-to; it was very helpful in getting started on our own implementation and I wanted to share our version back with the community for future reference. I slightly refactored your code to better fit our needs and we’re using Mustache templates to handle the markup more flexibly.
Our actual implementation is rather different, but I’ve published a pen of your original demo built with our model:
N.B.
The included API key is for a temporary TL0 user to enable access as our instance has login required while it’s under development