These are the examples of local gems used by engines in the component-based Rails applications:
- shared-rubocop—One RuboCop configuraiton to use in all libraries.
- shared-testing—RSpec & testing tools configuration.
- shared-factory—A tiny wrapper over
factory_bot.
NOTE: All these gems could be generalized and pushed to a public or private package registry to share between the projects. (We actually did this with some of them and already released 😉).