I’m planning to launch a peer-to-peer marketplace inspired by OLX and Vendora, focused strictly on buying and selling items. The platform must let users post listings, browse with powerful search & filters, negotiate through an in-app chat, and close the deal safely with an integrated payment flow and basic escrow logic. The catalogue will initially cover: • Electronics and gadgets • Clothing and accessories • Home and furniture To keep onboarding friction-free while still secure, I need three sign-in options: • Classic email & password • One-click social media login • Phone number verification with OTP Core expectations – Seller dashboard for managing ads, pricing, boosts, and analytics. – Buyer dashboard with wish-lists, saved searches, and order history. – Moderation and admin panel to approve, flag, or remove listings and handle user reports. – Clean UI following modern marketplace patterns; Figma or similar design hand-off required. Acceptance criteria 1. A user can register using any of the three authentication methods and verify the account. 2. A seller can create, edit, and publish a listing in any of the three categories, including images and price. 3. A buyer can search, filter, and message the seller inside the platform. 4. Transactions complete end-to-end in a sandbox payment environment. 5. Admin can suspend a problematic listing and view audit logs. Please outline your proposed tech stack, approach to security (GDPR-ready), and a realistic timeline to deliver an MVP. I’m ready to start as soon as we align on scope and milestones.