Guaranteeing that your application doesn't break while constantly shipping new features is tough. Obviously, with a continually growing app or site, you can't test everything manually all the time!Test automation and monitoring are crucial to avoiding shipping broken apps and sites. But what functionality should you test? When should you run your tests? And aren't complex test suites super slow?In this session, we'll get our hands on Playwright, the end-to-end testing framework, and learn how to automate headless browsers to ensure that you confidently ship new features.