Worked on the fmeum/bazel repository to enhance reliability in repository operations by addressing the DownloadManager lifecycle. Focused on Java development with expertise in build systems and dependency management, the work involved scoping the DownloadManager instance per command rather than maintaining a long-lived shared state. This was achieved by injecting the DownloadManager into specific SkyFunctions, ensuring that command-line option changes were properly respected and stale behavior was eliminated. By removing the instance from RegistryFactoryImpl, repository-related operations became more predictable and consistent, directly tying the DownloadManager’s lifecycle to each command and improving the overall maintainability of the Bazel module.