I need an MVP that lets customers in Ecuador shop on Amazon, Temu, and AliExpress without ever leaving my brand’s site. The platform must automatically pull each retailer’s catalog, keep prices and stock current, and display everything in one unified storefront. Key requirements • Catalog sync: near-real-time updates from Amazon, Temu, and AliExpress. • Local checkout: charge customers in USD using local credit or debit cards, calculate duties, VAT, and courier fees in the same transaction. • Courier bridge: create the shipment in our in-house courier system as soon as the order is paid, generate tracking, and push status updates back to the customer area. • End-to-end flow: product search → cart → payment → shipping → tracking, all inside a single responsive web app. I am open to the stack you propose as long as it supports reliable API integrations, scales for future channels, and can be handed over with clean documentation. Please outline: 1. Your suggested architecture (data flow, sync strategy, payment gateway, courier integration method). 2. A timeline for delivering a working prototype that handles one full purchase cycle. 3. Milestones you will hit to prove catalog sync, payment capture, tax calculation, and auto-generated shipment are functioning. Deliverables at hand-off: • Source code in a private repo. • Environment setup guide and deployment scripts. • Basic admin panel to view orders and sync logs. • Short video demo showing a live order from product selection to tracking number issuance. If you have built cross-border or multi-vendor e-commerce solutions before, highlight those links or repos. I look forward to launching this friction-free shopping experience together.