Recently I found out that changes made to the config.exs file did not apply to the running app.
I had to recompile and restart the app with iex -S mix.
I always thought that .exs files were not being compiled and interpreted when used.
Why keep configurations in the .exs file and not in the .ex if both are compiled?
I have read about runtime and compile time configurations and System.get_env/2 seems to be the only option for updating the configurations without actualy recompiling the app. If I am keeping my configurations in plain elixir in the runtime.exs file do I always need to recompile when making conf changes?
I would be very happy to hear how other people manage their application configurations. Thanks 
