VOJAS — AI Accountability Platform for MPLAD Scheme

🏆 Smart India Hackathon 2026 Finalist | 🌐 Live at vojas-frontend.vercel.app

VOJAS is an AI-powered government accountability platform that tracks MPLAD (Member of Parliament Local Area Development) scheme projects across India using satellite imagery analysis, risk detection, and public transparency.

What It Does

• 🛰️ Satellite Change Detection — Real-time Sentinel-2 satellite imagery analysis
• 🚨 7-Signal Risk Engine — AI-powered anomaly detection with correlation analysis
• 🗺️ Geospatial Intelligence — Interactive maps with 60,000+ geocoded projects
• 📊 Time Machine — Before/after satellite comparison with playback controls
• 🔍 Change Analysis — Automated change detection with confidence scoring
• 🏛️ Public Transparency — Citizen-facing dashboards and project tracking

Monorepo Structure

• apps/web/ — Next.js 15 App Router frontend
• apps/api/ — Express.js REST API
• packages/db/ — Prisma schema, migrations, PostgreSQL access
• packages/domain/ — Zod schemas, domain services, geospatial utilities, provider interfaces
• packages/api-client/ — Typed API client for the frontend
• packages/shared/ — Shared enums, constants, types

Quick Start (development)

# Install dependencies for all workspaces
npm install

# Set up environment
cp .env.example .env
# Edit .env with your PostgreSQL connection string

# Generate Prisma client + run migrations
npm run db:migrate -w @vojas/db
npm run db:seed -w @vojas/db

# Start the API and Web
npm run dev

• API: http://localhost:5000
• Web: http://localhost:3000

Architecture

See docs/rebuild/ARCHITECTURE.md for the complete architecture documentation.

Database

PostgreSQL 14+ with PostGIS extension. The schema is in packages/db/prisma/schema.prisma.

Tech Stack

• Frontend: Next.js 15, React 19, TypeScript, Tailwind CSS, TanStack Query
• Backend: Node.js, Express.js, TypeScript, Prisma ORM
• Database: PostgreSQL 14+ with PostGIS
• Auth: JWT + bcryptjs
• Validation: Zod (shared between FE and BE)
• Testing: Vitest (unit + integration), Playwright (E2E)

Legacy

The previous single-app version is in legacy/.