elixir

First, install Erlang.

$ sudo apt install autoconf automake libncurses5-dev libwxgtk3.0-gtk3-dev
$ asdf plugin add erlang
$ asdf install erlang latest
$ asdf global erlang latest

Install Elixir via asdf.

$ asdf plugin add elixir
$ asdf install elixir latest
$ asdf global elixir latest
$ iex --version

After installing postgres and node, you can try out Phoenix.