You are building a hyperlocal neighborhood skill exchange platform. MOBILE-FIRST ARCHITECTURE: - Framework: React Native or Flutter (iOS/Android) - Geolocation: Google Maps API with custom 200m radius search - Real-time Communication: Firebase Realtime Database + WebSockets - Push Notifications: Firebase Cloud Messaging - Storage: Cloud Firestore (neighborhood data) + SQLite (local cache) - Authentication: Phone number verification via Twilio - Camera: React Native Camera for quick item photo uploads - Mapping: Google Maps with custom marker clustering - ML/Recommendations: Custom matching algorithm based on needs/skills CORE FEATURES: 1. **Hyperlocal Neighborhood Map & Discovery** - Real-time interactive map showing active neighbors (200m radius) - User avatars with skill/item quick-view badges - Tap neighbor to see full profile: Skills offered, items available, trust score - Heat map visualization: High-activity neighborhood zones - Advanced filtering: By skill type, item category, service type - "Broadcast need" feature: "Does anyone have a ladder today?" - Search radius slider: Adjust discovery range (50m-500m) - Location privacy toggle: Show exact location or "nearby" only 2. **Skill & Item Marketplace** - Pre-built categories: Home Repair, Cooking, Pet Sitting, Tutoring, Babysitting, Equipment Rental, Tech Help, Gardening, Childcare - Quick-add listings: Photo + 1-sentence description - Time-limited availability: Mark yourself available "today only" or recurring schedule - Item condition indicators: Brand new → Heavily used (visual scale) - Hourly rate suggestions (if skill-based): Based on complexity + community standards - Rental duration for items: Hourly, daily, weekly - Reservation system: Secure item holding with deposit (in time credits) - Batch import: Save templates for recurring offers 3. **Time Bank Credit System** - Earn 1 credit per 1 hour of work (skill agnostic—all labor valued equally) - Credits never expire (encourages long-term community building) - View credit balance prominently in wallet - Transaction history: All credits earned/spent with details - Leaderboard: Monthly "Most helpful neighbors" (public recognition) - Credit goals: "I need 10 credits to get furniture moving help" - Tips system: Send extra credits to exceptional helpers - Credit audit trail: Transparent record of all transactions 4. **Smart Matching & Recommendation Engine** - User inputs need: "I need piano lessons" → System matches neighbors offering it - Reciprocal trade suggestions: "Sarah offers cooking, you offer guitar—match?" - Availability calendar: See when each neighbor is free - One-tap request proposal: "I'd like to trade your babysitting (2 hrs) for my tech help (2 hrs)" - Instant notifications when match found - AI-ranked suggestions: Sort by trust score, proximity, previous interactions - Preference learning: System improves matches based on accepted/rejected offers 5. **Trust & Safety Framework** - Phone number verification (Twilio) - Optional identity verification (government ID scan with encryption) - Trust score system (1-5 stars based on completed exchanges) - Verified badges: "10+ successful trades", "100+ hours contributed" - In-app secure messaging only (phone numbers never shared) - Review system: Leave feedback after each exchange - Report/block functionality: Flag problematic users - Community guidelines: Clear conduct standards - Dispute resolution: Admin mediation for conflicts 6. **Community Features & Social** - Neighborhood news feed (local events, alerts, opportunities) - "Buy Nothing" style board: Give away items - Event coordination: "Organizing block party Saturday—who's interested?" - Group chat by neighborhood: Coordinate larger efforts - Lost & Found section: Report missing items - Safety alerts: Share community safety information - Neighborhood challenges: "This month: Share 5 free skills" - Milestone celebrations: "Our block has exchanged 1000 hours!" 7. **Neighbor Profile & Reputation** - Profile page: Photo, bio, skills list, items available, calendar - Specialization badges: "Master Gardener", "Great with Kids", "Tech Expert" - Availability calendar: See when neighbor is free - Reviews section: Verified reviews from completed exchanges only - Response time metrics: How quickly they respond to requests - Total contribution: Hours given to community - Activity streak: Days active in neighborhood - Skills endorsement: Other neighbors confirm your skills 8. **Request & Exchange Management** - Send exchange request: Propose specific trade terms - Request status: Pending → Accepted → Completed - Calendar integration: Schedule exchange directly to phone calendar - Reminder notifications: 24hr and 1hr before scheduled exchange - Exchange completion confirmation: Both parties confirm - Photo verification: Option to verify items/work completed via photo - Rating prompt: Ask for feedback after completion - Dispute escalation: Formal resolution process if needed DESIGN SYSTEM: - Warm, community-focused colors: Community green (#10B981), Trust blue (#3B82F6), Warm orange (#F97316) - Bottom tab navigation: Map, Marketplace, Messages, Profile, Community - Gesture-heavy interface: Swipe cards, long-press for options, tap for details - Large touch targets: Minimum 48px for all interactive elements - Friendly illustrations: Show diverse community members NOTIFICATIONS: - Push alerts: "Sarah matched your skill—she needs help with moving" - Time-sensitive: "Your exchange with John is in 1 hour" - Community: "New free items posted near you" - Recognition: "You've earned 50 hours—community champion!" PERFORMANCE TARGETS: - Map load: <1 second (optimized for 4G) - Listing updates: Real-time (Firebase streaming) - Push notifications: <5 second delivery - Offline-first: Save viewed profiles locally, sync when online Generate a fully functional prototype with: ✅ Interactive map showing sample neighbors (200m radius) ✅ Skill/item marketplace with advanced filtering ✅ Personalized activity recommendations ✅ Trust score and verification system ✅ Secure in-app messaging interface ✅ Availability calendar system ✅ Time bank ledger and transaction history ✅ Matching suggestions algorithm ✅ Community feed with local events ✅ Neighbor profile creation and editing ✅ Exchange request workflow (propose/accept/complete/rate) ✅ User rating and review system ✅ Community impact dashboard ✅ Monthly leaderboard ✅ Mobile-responsive design (375px, 414px, 568px widths) ✅ Bottom tab navigation ✅ Dark/light mode toggle ✅ Push notification simulation ✅ Offline data access ✅ Accessibility compliance (WCAG 2.1 AA) Make this feel like you're joining a genuine community, not a transactional marketplace. Use warm, inviting language. Show real stories of neighbors helping each other. Create genuine FOMO. Include social proof. This should feel warmer and more human than marketplace apps. Testing notes: Test location accuracy and privacy across different devices. Verify real-time updates with multiple concurrent users. Test notification delivery.