Developed and delivered Docker Buildx support in the flyteorg/flytekit CLI by refactoring the DefaultImageBuilder and removing a redundant image argument, enabling multi-architecture builds directly from the command line. This work focused on enhancing build flexibility and supporting more robust CI/CD workflows for both users and internal teams. The implementation required in-depth CLI development and Docker expertise, with all changes made in Python to ensure maintainable and traceable code. No major bugs were addressed during this period, but the feature improved the overall build system’s flexibility, maintainability, and developer productivity within the flytekit repository’s build process.