Bitrise introduces its new feature, Modular YAML configuration, to simplify managing large CI/CD configuration files. This feature allows users to break down extensive YAML files into smaller, reusable modules, improving readability, maintainability, and collaboration. The include syntax enables the incorporation of external YAML files into the main configuration. Modular YAML offers better scalability, error isolation, and debugging compared to competitors like Jenkins, GitHub Actions, Circle CI, and GitLab. By following best practices such as consistency, documentation, version control, and reuse, users can effectively split their YAML configuration files for improved maintainability and readability.