Bootstrap the application environment.
This module is responsible for setting up the application environment based on the configuration provided by the user.
Usually, config calls are made in the config/runtime.exs file. This module
abstracts the runtime configuration into a module that can be tested and
called from other places (aside from config/runtime.exs) file.
Sourcing envs
Internally this module uses Dotenvy.source/1 to source environment variables
from the .env, .env.<config_env>, and .env.<config_env>.override files.
It also sources the system environment variables.
Calling configure/0 without calling source_envs/0 or Dotenvy.source/2
first will result in no environment variables being loaded.
Usage:
Lightning.Config.Bootstrap.source_envs()
Lightning.Config.Bootstrap.configure()Summary
Functions
Retrieve a value nested in the application environment.