code: def folder
        if Rails.configuration.respond_to?(:echo_uploads) and Rails.configuration.echo_uploads.folder
          Rails.configuration.echo_uploads.folder
        else
          ::File.join Rails.root, 'echo_uploads', Rails.env
        end
      end
docs: Can be customized in your per-environment config like this:
     config.echo_uploads.folder = File.join(Rails.root, 'my_uploads_folder', 'development')