[guftagu]

I'd wait for the ecosystem to mature before building a business app with Phoenix. You never know what taken for granted library is missing in Elixir, and it's going to be damn hard to hire a developer experienced with Phoenix. Everyone on your team will be slow and will be making a steady stream of mistakes as they learn the framework

[blunte]

I think Phoenix (and Elixir) is mature enough already to use in production. I've made pretty good, bordering on oracle-like :) predictions about directions in technology over more years than I care to think about; so I'm confident that Phoenix is only going to grow in use and positive attention.

It will be the logical successor to Rails. It already is.

That said, I use a good mix of Elixir+Phoenix and old-school cron launched Python utility scripts, and that works nicely. Anything that's difficult (probably because I am still a newb) in Elixir I can easily do out of band with a Python script.

But your point about difficult to hire experienced people is the reason for my reply. This is the mentality that is ruining IT and development. Yes, having someone with hands on experience in all of your tools is nice - a rare luxury in fact. But it's really not necessary. I would be quite happy to have someone that has willingly built something in Rails, Django, and Nodejs with an "Oh I can learn that" attitude. Especially if you come from a modern MVC framework, Phoenix itself is easy. Elixir is the part that requires some real effort, imo.