In June 2025, Josh Haberman focused on improving the build system for the Shopify/grpc repository by removing deprecated upb alias references. He updated multiple BUILD files to reference upb targets directly, eliminating outdated dependencies and reducing the risk of alias-related breakages. This cleanup, implemented using Bazel and leveraging his expertise in build system management and code refactoring, resulted in a more maintainable and reliable configuration. By streamlining dependency management and simplifying the build process, Josh enhanced repository hygiene and made onboarding easier for new contributors. His work demonstrated careful assessment of change impact and strong proficiency in C++ and Python.