Another framework. May merciful Providence deliver us.
Hmm? You haven't heard of Phoenix/Elixir? It's mentioned on HN fairly often.
It's comical how the FA jumps right in assuming you know what it is, what it's for, and why you should care about the first two -- comical in a good way, for those of us who are happier not knowing.
I have a vague impression that Elixir has something to do with Erlang, and that is all I need to know, but that Phoenix has something to do with Elixir also wasn't mentioned right away.