Over a two-month period, contributed to Shopify’s remote-dom and extensions-templates repositories by delivering targeted improvements in both reliability and user interface development. In remote-dom, addressed mutation batching reliability by implementing a fallback mechanism using setTimeout when MessageChannel is unavailable, ensuring consistent behavior across environments and adding automated tests to prevent regressions. Later, in extensions-templates, developed a Preact-based customer account UI integrated with API version 2025-07, refining the OrderStatusBlock.liquid layout for better user experience and maintainability. Work involved JavaScript, TypeScript, and Liquid, demonstrating a focus on robust cross-environment compatibility and modern frontend development practices within the Shopify ecosystem.