Debugging is one of the most powerful and necessary tools in a developer's toolkit, and what better way to hone our Rails debugging skills than by using real-world examples from the Rails codebase itself? In this talk, we'll explore how using merged PRs from the Rails codebase can help improve your debugging skills, increase your familiarity with the framework, and build your confidence in navigating complex issues. By leveraging the wealth of knowledge and experience within the Rails community, you'll come away from this talk with a newfound appreciation for the power of collaboration and the importance of community-driven development.