Over a two-month period, contributed to multiple open source repositories by enhancing CI/CD workflows and improving code readability, primarily using Rust, Python, and YAML. In rolldown/rolldown, jitsi/excalidraw, and grafana/pyroscope, upgraded GitHub Actions and resolved compatibility issues with newer Node.js runtimes, resulting in more stable and maintainable CI pipelines. Refactored string formatting in vectordotdev/tokio and restatedev/restate to adopt modern Rust syntax, focusing on maintainability without altering functionality. In BoundaryML/baml, transitioned from format! macros to direct interpolation, further standardizing code style. Work emphasized code refactoring, async programming, and CI/CD best practices across diverse codebases.