Electron-libre

defmodule Gifnoc.Config do
  @spec get(atom, atom, term | nil) :: term
  def get(app, key, default \\ nil) when is_atom(app) and is_atom(key) do
    case read_config(Application.get_env(app, key)) do
      nil -> default
      val -> val
    end
  end

  def read_config({:system, var_name}), do: System.get_env(var_name)