I didn't cover it in the article, but the key to get interactivity would be to switch to a datastore layer that supports subscribable queries. I'm aware of Esp

I didn't cover it in the article, but the key to get interactivity would be to switch to a datastore layer that supports subscribable queries. I'm aware of Esper[1] which tries to do this. And maybe/arguably Firebase (?) [1]: http://www.espertech.com/esper/ http://www.espertech.com/esper/