In this blog post, Kasper Hermansen from Lunar shares the story of how his team transitioned from shell scripts and Docker to Dagger, a platform engineering tool that enables engineering principles across CI/CD pipelines. The transition improved the reliability and consistency of their software delivery platform, allowing developers to work more efficiently and reducing build failures. With Dagger, Kasper's team can now test and package their tooling with ease, collaborate on improvements, and deliver software faster. Although some challenges remain, the benefits are clear: happier developers, more efficient software delivery, and a better experience for internal development teams. As Kasper continues to experiment with Dagger's features, he is eager to explore its potential in ephemeral local development environments and extensions.