[underwater]

You can make use of the JavaScript ecosystem. React is a nice was to structure code. There are a tonne of modules available on npm, etc. If and when you do want to build client elements you can reuse parts of your code.

That said, I'm not aware of anyone doing this at scale. I know the BBC were considering it. My company will be using it to product AMP pages from our JS stack.

[potench]

Being done at scale here: https://www.nfl.com/super-bowl Plans to release solution across ecosystem by August Based on open-source universal app here: https://github.com/nfl/react-wildcat

Documentation and infrastructure setup for this project aren't great at the moment, but will get a facelift shortly.