Built and launched a public Shopify app that enables merchants to duplicate products, collections, pages, metafields, and other store content between Shopify stores. Ideal for staging-to-production workflows, multi-store management, and bulk migrations. Preserves images, metafields, and resource relationships while handling rate-limited GraphQL operations for reliable end-to-end duplication. Built with Remix, React, TypeScript, Node.js, Prisma, PostgreSQL, and the Shopify Admin GraphQL API. Published on the Shopify App Store.