Doodle App in 3 hours with Firebase

Neat, but please don't call this 'OMGPOP's Draw Something'. This title is pure link bait. It's not even close to Draw Something, nor is it intended to be.

A more appropriate title would be 'Doodle app in 3 hours with Firebase'

Edit: Thanks

Well, I'll be that guy and say I'm underwhelmed (no less by the link-bait headline).

and saving and sharing data without a line of backend code!

That's nice and all. However, from a glance it seems like you saved yourself about 30 lines of code in <insert-favorite-web-framework>. With heroku or appengine that's about 15 minutes from first line to first deploy.

No need to lock yourself into a proprietary platform here, if you ask me...