Yes, I'm one of the authors. If you want to contribute too it'll be awesome and it'll be greatly appreciated!
The quoted numbers are based on the set of sample apps you can find in the repository. Take a look in sample/apps. You'll see the code and the Dockerfiles that go along with them.
I haven't thought about publishing the images. Thanks for the idea!
You should have posted this independently - there you go https://news.ycombinator.com/item?id=11046797
could you put up some precreated docker images that we can pull and test out ? That should really be the quickstart.