The Rails Philosophy and Application Shape

This lesson introduces the core philosophy behind Ruby on Rails and how that philosophy shapes the structure of a Rails application. Students learn why Rails favors conventions, integrated defaults, and clear application boundaries instead of forcing teams to assemble every decision from scratch.

The lesson focuses on the mental model: where code tends to live, how requests move through the framework, and why Rails applications feel organized around business behavior rather than isolated technical layers. Later lessons will go deeper into routing, MVC, Active Record, views, testing, and production concerns.