```ruby
require File.expand_path('../boot', __FILE__)

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

# This turns on a higher level of verbosity (warnings) from Ruby.
# Unfortunately it also triggers some false alarms from Rails, so we're
# not enabling it by default:
# $VERBOSE = true

module BadgeApp
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified
    # here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Set Time.zone default to the specified zone and make Active Record
    # auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone names.
    # Default is UTC.
    # config.time_zone = 'Central Time (US & Canada)'

    # The default locale is :en and all translations from
    # config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales',
    # '*.{rb,yml}').to_s]
    # config.i18n.default_locale = :de

    # Do not swallow errors in after_commit/after_rollback callbacks.
    config.active_record.raise_in_transactional_callbacks = true
  end
end
```

Enable autoloading from app directory
user
```ruby
require File.expand_path('../boot', __FILE__)

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

# This turns on a higher level of verbosity (warnings) from Ruby.
# Unfortunately it also triggers some false alarms from Rails, so we're
# not enabling it by default:
# $VERBOSE = true

module BadgeApp
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified
    # here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Set Time.zone default to the specified zone and make Active Record
    # auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone names.
    # Default is UTC.
    # config.time_zone = 'Central Time (US & Canada)'

    # The default locale is :en and all translations from
    # config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales',
    # '*.{rb,yml}').to_s]
    # config.i18n.default_locale = :de

    # Do not swallow errors in after_commit/after_rollback callbacks.
    config.active_record.raise_in_transactional_callbacks = true

    # Enable Rails autoloading for everything below app directory
    config.autoload_paths << "#{config.root}/app"
  end
end
```
assistant