It depends on what you need. If you're building chat and want presence features so you can see who's online (and with how many and what type of devices), Elixir

It depends on what you need. If you're building chat and want presence features so you can see who's online (and with how many and what type of devices), Elixir + Phoenix gives it to you out of the box. I agree with your point about a sparser number of libraries, and sometimes that slows me down. That said, Elixir's ergonomics and documentation is fantastic.