I need a lean, cross-platform mobile app that lets shoppers browse products, add them to a cart, and complete a basic checkout flow. At this stage I only want the core screens working—perfect for a Flutter or React Native build—so I can test the idea quickly before investing further. In addition to the catalog and checkout, include two simple static pages: • About Me – a short bio I’ll supply. • Projects – a gallery of past work with images and links I’ll provide. No payment gateway, shipping calculator, or advanced admin panel is required yet; placeholder logic is enough. Clean, well-commented code with a README explaining how to run the build locally will complete the delivery.