Basic chat app in Elixir based on Logan Bresnahan's blog post Elixir WebSocket Chat Example w/o Phoenix.
Fetch and compile dependencies:
mix deps.get
mix deps.compile
Start the development server:
iex -S mix
Visit http://localhost:4000/, ideally in two different browers. Type a message in the input field and hit the "send" button in one window. The message should show up in the other window, and vice versa.