SonarQube is a code quality tool that helps catch bugs, code smells, and vulnerabilities in pull requests. It's part of the Clean as You Code methodology, which aims to make developers take ownership of code quality and security by providing the right information at the right time, delivering it in the right place. SonarLint in IDEs catches issues as code is written, and when a pull request is opened, it triggers a CI workflow that analyzes the PR in SonarQube. The Quality Gate profile ensures clean code acceptance criteria, enabling developers to confidently merge their code with fewer issues to refactor later on. By adopting Clean as You Code and SonarQube, developers can improve their coding skills, solve problems efficiently, and feel confident they're not leaving teammates future headaches.