Explore a battle-proven approach to creating a testable architecture in this 51-minute conference talk from GeeCON Prague 2022. Learn how to develop applications that can be successfully tested using automation and executable specifications. Discover the key characteristics of effective tests, including speed, reliability, and diagnostic precision. Gain insights into writing, maintaining, and executing tests that won't be abandoned. Through a practical example, see how executable examples can lead to both a testable architecture and living documentation. Understand the benefits of outside-in development for supporting test automation and learn techniques for properly implementing and reusing executable examples. Walk away with valuable takeaways on how to make testable architecture development both achievable and enjoyable.