During this period, contributed to modernizing Shopify’s app development ecosystem by updating the shopify-app-template-react-router repository to use the latest App Bridge APIs, aligning with current best practices. Enhanced UI stability and internal tooling in shopify-app-js by integrating the official Polaris UI script and refining changeset management. In the extensions-templates repository, adopted Preact as the default framework for UI extension templates and refreshed Point of Sale templates to improve merchant experience. Simplified developer workflows in the Shopify CLI by removing feature flags and standardizing template selection. Work leveraged JavaScript, TypeScript, and Liquid, emphasizing maintainability, version control, and streamlined release management.