Supervisors

Mix.install([
  {:kino, "~> 0.7.0"}
])

Section

defmodule Bomb do
  use GenServer

  def start_link(start_arg) do
    IO.inspect(start_arg, label: "Bomb Started")
    GenServer.start_link(__MODULE__, "init arg")
  end

  @impl true
  def init(init_arg) do
    # state = opts[:name]
    IO.inspect(init_arg, label: "INIT")
    {:ok, nil}
  end
end

children = [
  %{
    id: :bomb1,
    start: {Bomb, :start_link, ["start link arg"]}
  },
  %{
    id: :bomb2,
    start: {Bomb, :start_link, [%{}]}
  },
  %{
    id: :bomb3,
    start: {Bomb, :start_link, [[name: "Bomb 3"]]}
  }
]

{:ok, supervisor} = Supervisor.start_link(children, strategy: :rest_for_one)

children = [
  {Bomb, ["start_link arg"]},
  %{
    id: Bomb,
    start: {Bomb, :start_link, [["start_link arg"]]}
  },
  %{
    id: :bomb3,
    start: {Bomb, :start_link, [[name: "Bomb 3"]]}
  }
]

{:ok, supervisor} = Supervisor.start_link(children, strategy: :rest_for_one)

Supervisor.which_children(supervisor) |> Enum.reverse()

Kino.Process.sup_tree(supervisor)

pid = :c.pid(0, 272, 0)

Process.exit(pid, :kill)