engine_basic_setup

🏗️ Create a Mountable Rails Engine

Rails engines let you package functionality into a mini Rails application. To scaffold a new mountable engine, run the rails plugin new generator with --mountable. This creates a clear directory structure (app/, lib/, config/) and isolates your engine’s namespace.

$ rails plugin new blog_engine --mountable

Once generated, explore blog_engine/app/controllers/blog_engine/ and blog_engine/config/routes.rb to start adding your engine’s behavior.