Rookout is a new integration platform launched by Sentry, allowing developers to build workflows on top of Sentry. The platform helps fix software issues in production and integrates with Sentry to provide real-time debug data, enabling developers to troubleshoot and resolve issues without stopping the live app or editing code. The integration installation process involves three simple steps, and users can access the Rookout interface directly from a stack trace in Sentry, allowing for seamless debugging and troubleshooting. Rookout offers a free trial for Sentry users, and developers are encouraged to contribute to its development to expand its capabilities.