Please update the official docs.
I18n.load_path = Dir["#{Jets.root}/config/locales/*.yml"]
This line overwrites the loading path, it should be
I18n.load_path << Dir["#{Jets.root}/config/locales/*.yml"]
This way default ActiveRecord translations won’t be prevented from loading.
Overwise you’ll get ‘missing translation’ errors like this one:
“translation missing: en.activerecord.errors.models.MODEL_NAME.attributes.ATTRIBUTE_NAME.blank”