Rails Engines

Rails Engines are modular components within a Ruby on Rails application that enable developers to create, share, and reuse other Rails applications or features as independent “mini-applications.” Think of them as self-contained building blocks that can be plugged into a larger project, providing specific functionality without altering the main app’s core code. Engines help organize complex apps, promote code reuse, and facilitate collaboration by encapsulating features like user authentication, e-commerce, or admin dashboards, making large Rails projects more maintainable and scalable.