🥗 SurplusHub — AI-Powered Food Rescue Marketplace

Save Food. Save Money. Save the Planet.

SurplusHub is a green-tech platform that connects culinary businesses with conscious consumers to rescue surplus food in real-time using intelligent, AI-powered systems.

Problem & Opportunity

One-third of the world’s food production goes to waste every year, while millions still struggle to access affordable meals. At the same time, restaurants and cafes discard perfectly edible food due to time-sensitive inventory and lack of efficient redistribution channels. SurplusHub transforms this inefficiency into opportunity—turning surplus into value for businesses, consumers, and the environment.

What it does

SurplusHub enables a real-time, hyper-local food redistribution marketplace:

• Businesses can monetize unsold inventory instead of discarding it

• Consumers gain access to high-quality food at discounted prices

• Communities benefit from reduced waste and better food access

Core Impact Pillars

Economy 💰

→ Helping partners generate revenue from surplus products

Social 🤝

→ Making quality food more affordable and accessible

Environment 🌱

→ Reducing food waste and lowering CO₂ emissions

Key Features

🤖 Smart Dynamic Pricing (AI)

Prices automatically adjust based on time-to-expiry

📍 Hyper-local Discovery

Users can find nearby surplus food instantly through an interactive real-time map

💎 AI Tools for Businesses

Advanced tools to improve listing quality

AI-generated product images from text descriptions

Faster and more attractive product uploads

How we built it

We focused on delivering a fast, clean, and scalable experience:

• Frontend: Built with Next.js (App Router) & TypeScript for performance and maintainability

• Styling: Tailwind CSS for a modern, minimalist UI

• Backend: Supabase (PostgreSQL) for real-time data sync and authentication

• Mapping: Leaflet.js for lightweight, responsive geolocation features

• Design: Prototyped in Figma using Lexend & Outfit for clarity and accessibility

Challenges we ran into

• Real-time Synchronization: Ensuring that surplus quantities updated instantly across the dashboard and user map to prevent over-claiming.

• Map Optimization: Fine-tuning Leaflet.js performance to handle multiple pins and user location data without lagging on mobile devices.

• Development Sprint: Balancing complex features like real-time tracking with a polished UI within the tight hackathon deadline.

What's next for SurplusHub

• Predictive Surplus Insights:

Helping vendors anticipate surplus patterns and reduce waste proactively

• Impact Transparency (Web3-ready):

Recording rescue transactions to provide verifiable environmental impact

• Mobile Expansion:

Real-time push notifications for nearby surplus opportunities

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