Phoenix framework for the Elixir language. It's a web framework that leverages the natural concurrency and performance structure of the Erlang VM to handle both standard web development and web sockets.
That's the high altitude view.
In my professional opinion, Elixir and Phoenix also address the vast majority of short and long term issues that cause problems in projects without a negative impact on developer productivity. I'm a big believer it both. It's also got the perk of being so lightweight that there's almost no performance impact to using Phoenix instead of raw Elixir.
