[yumaikas]

If you're wanting to use Elixir, it's not going to be nearly as mainstream as, say, Node, but fly.io has support for Elixir apps (to speak of cloud), and I think there's some cool stuff going on in Elixir myself.

Of other note is that Erlang seems to enable folks that use it to punch above their weight class when it comes to running services internally and such.

Serverless is far from the only valid way to run things these days.