Basic module that supports dynamically attached supervised children in elixir

dynamic.ex

defmodule Dynamic do

  defdelegate start_link(), to: Dynamic.Server
  defdelegate new,          to: Dynamic.Supervisor

end

server.ex

defmodule Dynamic.Server do
  use GenServer

  def start_link() do
    GenServer.start_link(__MODULE__, %{})
  end

end

supervisor.ex

defmodule Dynamic.Supervisor do
  use Supervisor

  def start(_opts, _args) do
    Supervisor.start_link(__MODULE__, :ok, name: __MODULE__)
  end

  def init(:ok) do
    children =[
      worker(Bullet.Server, [], restart: :temporary)
    ]
    opts = [
      strategy: :simple_one_for_one
    ]
    supervise(children, opts)
  end

  # End use api
  def new do
    Supervisor.start_child(__MODULE__, [])
  end

end