During September 2025, Jeff Vroom focused on improving resource accounting in the rstudio/rstudio repository by addressing a Kubernetes pod memory accounting bug. He enhanced the accuracy of per-pod memory usage reporting by refining the logic for cgroup identification and root path comparison, ensuring that memory metrics are attributed to individual pods rather than aggregated at the node level. This work, implemented through targeted C++ commits, leveraged his expertise in Kubernetes, Linux, and system programming. The changes enable more precise capacity planning and performance isolation for Kubernetes deployments, reflecting a deep understanding of Linux internals and careful attention to incremental, maintainable improvements.