Over a two-month period, contributed to ublue-os/bluefin by developing a Shell Script Validation Tool that leverages ShellCheck and integrates with the build workflow, ensuring early detection of syntax issues and enforcing best practices in shell scripting. For sgl-project/sglang, focused on stabilizing MLX workloads on Apple Silicon by improving scheduler reliability, enhancing API compatibility, and introducing Metal profiling hooks for GPU performance monitoring. Utilized Python, bash, and PyTorch to address backend development challenges, implement robust unit testing, and automate build processes. The work emphasized reliability, maintainability, and observability, directly supporting production stability and streamlined machine learning development on macOS.