A naive genserver constant store

naive_constant_genserver.ex

defmodule Store do
  use GenServer

  def start_link(state \\ [:foo]) do
    GenServer.start_link(__MODULE__, state, name: __MODULE__)
  end

  def init(state), do: {:ok, state}

  def get, do: GenServer.call(__MODULE__, :get)

  def handle_call(:get, _from, state), do: {:reply, state, state}
end