Dianyi Yang standardized the macOS deployment target across CI/CD pipelines for the posit-dev/ark repository, focusing on improving build consistency and reducing compatibility issues. Using Shell and YAML within GitHub Actions, Dianyi updated the deployment target to macOS 11 for both release and testing workflows. The solution introduced a centralized environment file to manage the deployment target, ensuring that the setting was consistently applied during build and test stages. This approach addressed environment drift and aligned the build process across different pipelines. The work demonstrated a methodical application of build automation and CI/CD practices, with a targeted scope and clear technical impact.