I want a full-stack grocery delivery solution built exactly on the stack below: • Flutter (Dart) for the customer-facing Android app, organised so it can later be compiled for iOS with minimal refactor. • React (or vanilla JavaScript if you prefer) for a web-based admin panel that supports multiple admins logging in at the same time. • Firebase for auth, real-time database / Firestore, cloud functions and push messaging. • VPS with Nginx that I will supply for hosting all product images. Core customer features must include secure phone or e-mail sign-up/login (OTP over SMS and Firebase Auth), a smooth product search & filter flow, and an in-app payment checkout. I also need push notifications for order status plus SMS alerts when relevant. I will cover Play Store and hosting costs myself; what I need from you is the complete, production-ready codebase, well-commented and handed over in Git, along with brief set-up documentation so I can redeploy or run local builds without guesswork. Deliverables 1. Flutter Android app (iOS-ready structure). 2. Web admin panel with role-based access for multiple admins. 3. Firebase project configuration, cloud functions and security rules. 4. Image upload endpoint pointing to my VPS/Nginx. 5. One-page deployment guide and hand-off call. If this stack is already in your comfort zone and you can demonstrate previous Flutter + Firebase commerce work, let’s get started.