init

.gitignore

@@ -0,0 +1 @@
+_build

lib/main.ex

@@ -0,0 +1,5 @@
+defmodule HelloWorld do
+  def hello_world(name) do
+    IO.puts "Hello, World! #{name}"
+  end
+end

mix.exs

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+defmodule HelloWorld.Mixfile do
+  use Mix.Project
+
+  def project do
+    [
+      app: :my_app,
+      version: "0.1.0",
+      elixir: "~> 1.12",
+      start_permanent: Mix.env() == :prod,
+      deps: []
+    ]
+  end
+end