SetuHub

What it does

SetuHub is a hyper-local human-network engine that connects people within a radius for:

• Instant help requests (HelpNearMe)
• Local impact events (ImpactEvents)
• Real-world social engagement (Moments)
• Missing person alerts
• Urgent blood requests

It turns a user’s surroundings into a real-time support system.

How we built it

• React Native + Expo for a cross-platform mobile interface
  
• Golang microservices for backend performance
  
• NeonDB (PostgreSQL + PostGIS) for precise radius-based filtering
  
• Redis for caching and speed
  
• Firebase Cloud Messaging for real-time alerts
  
• SendGrid for email flows
  
• Cloudinary for media storage
  
• Expo Location + Google Maps API for accurate location data
  

Challenges we ran into

• Ensuring accurate and fast radius-based geo-targeting
  
• Establishing trust and verification for emergency posts
  
• Handling inconsistent GPS accuracy across devices
  
• Avoiding empty-feed experiences during early user adoption
  
• Balancing real-time performance with device battery constraints
  

Accomplishments that we're proud of

• A fully functional hyperlocal help and impact engine
  
• Smooth integration of geo-queries, real-time notifications, and media uploads
  
• An intuitive UX that makes community action extremely simple
  
• Building something that can genuinely save lives and spark community change

What we learned

• Optimizing PostGIS for hyperlocal queries
  
• Designing trust, moderation, and safety systems
  
• Building for real-world reliability where speed matters
  
• Creating interfaces that drive real community engagement
  
• Understanding how technical design affects user behavior
  

What's next for SetuHub

• Reputation scoring system for trust
  
• AI-assisted moderation and spam detection
  
• Analytics tools for community and local authorities
  
• Expansion into rural and underserved areas
  
• Partnerships with NGOs, hospitals, and emergency networks
  
• Pilot launches in universities and residential communities

Built With

• cloudinary
• golang
• lottie
• neondb
• posgres
• reactnative
• redis
• render