I like that it is open source, which means we can use it to build our own tools for building software in containers at scale. It's great to be able to run tests against all of your code with one command instead of having to write separate commands for each project. There are still some things I would like to see improved upon (e.g., documentation). Dockerfile support is also not as complete or mature yet compared to other options such as Kubernetes orchestration systems. The biggest benefit so far has been being able to do continuous integration/deployment testing across many projects simultaneously.
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