Checkly is a tool designed to help developers ship excellent software by providing API and end-to-end monitoring capabilities. The platform enables users to define automated test suites that check all properties constantly, guaranteeing everything is up and running. Synthetic monitoring using headless Chrome allows for testing critical interaction flows on a schedule with JavaScript. Checkly has introduced GitHub Sync, a feature that automatically synchronizes Browser checks from GitHub, allowing developers to develop their Playwright or Puppeteer scripts locally, link them with Checkly, and keep them updated via Git. This feature offers code sync strategies, reuses code, loads local file dependencies, and allows users to structure their code in the same way they do on their machine. The platform is now being dogfooded by Checkly itself, and developers are encouraged to provide feedback on GitHub.