Dagger is a programmable CI/CD engine that runs your pipelines in containers. Develop your CI/CD pipelines as code, in the same programming language as your application. Runs your pipelines in containers Dagger executes your pipelines entirely as standard OCI containers. This has several benefits: Instant local testing Portability: the same pipeline can run on your local machine, a CI runner, a dedicated server, or any container hosting service. Superior caching: every operation is cached by default, and caching works the same everywhere Compatibility with the Docker ecosystem: if it runs in a container, you can add it to your pipeline. Cross-language instrumentation: teams can use each other's tools without learning each other's language.