Greg worked on the aspect-build/rules_js repository, focusing on simplifying the build system by disabling Remote Build Execution (RBE) across all Bazel configurations. He achieved this by removing RBE-specific flags and executor settings from YAML-based workflow files and Bazel configuration scripts, streamlining the build pipeline and reducing maintenance overhead. His work targeted configuration consistency across multiple workspaces, making the build process more reliable and easier for developers to onboard. Using skills in build systems, CI/CD configuration, and languages such as Shell and YAML, Greg delivered a focused feature that improved workflow clarity without addressing bug fixes during this period.