Ryan Tjandra worked on the IBM/velox repository, focusing on improving build reliability and maintainability by annotating the inclusion of the xxHash library across multiple C++ files. He integrated build-system annotations for xxhash.h include directives, which enhanced dependency tracking and attribution throughout the codebase. Using C++ and leveraging skills in build systems and dependency management, Ryan’s work clarified the project’s dependency graph, making onboarding and audits more straightforward. Although the scope was limited to a single feature over one month, the changes reduced the risk of misbuilds and contributed to a more maintainable and auditable development environment for Velox.