Arthur focused on dependency management and build tooling improvements across ZephyrCloudIO repositories during October 2025. He upgraded Babel-related development dependencies in zephyr-repack-example, targeting enhanced build stability and security by aligning with the latest stable versions. In zephyr-packages, Arthur refreshed ESLint plugins and core dependencies, updating the pnpm-lock.yaml to ensure compatibility with evolving tooling standards. His work, primarily using YAML and package management tools, addressed build flakiness and mitigated security risks from outdated packages. While the scope was limited to two features and no bug fixes, the updates contributed to more reliable CI workflows and a streamlined developer experience.