// build_guide
// How to build Restaurant POS and Kitchen Display System for Indian QSR Chains
Restaurant POS requires real-time order synchronization between frontend and kitchen displays, robust payment processing for Indian market, and offline capabilities for network issues. Socket.io handles real-time updates while PostgreSQL ensures ACID compliance for financial transactions.
Complexity 8/10SaaS
// recommended_stack
FrontendReact with TypeScript and Tailwind CSS
BackendNode.js with Express and Socket.io
DatabasePostgreSQL with Redis for real-time caching
AuthAuth0 or Firebase Auth with role-based access
HostingAWS or DigitalOcean with load balancer
ExtraRazorpay/Payu integration
ExtraWebSocket connections
ExtraThermal printer APIs
ExtraPWA for offline mode
// cost_and_timeline
USD min
$12,000
USD max
$18,000
INR min
₹10.0L
INR max
₹15.0L
Typical SaaS projects cost $1,800–$5,000 USD and take 6–8 weeks with an Indian dev team. See the full cost guide →
// timeline_breakdown
2 weeksDiscovery & Design
6 weeksCore POS Development
3 weeksKitchen Display System
2 weeksPayment Integration
2 weeksTesting & Deployment
// mvp_features[]
## What to build in the MVP
-Basic POS interface for order entry
-Kitchen display system with real-time order updates
-Menu management with categories and pricing
-Order status tracking (pending, preparing, ready)
-Basic payment integration with Razorpay
-Multi-location restaurant support
-Role-based access (cashier, kitchen staff, admin)
-Basic reporting (daily sales, order volume)
// risk_flags[]
## Engineering risks to plan for
!PCI DSS compliance requirements for payment processing
!Real-time synchronization complexity across multiple devices
!Hardware integration challenges with thermal printers and payment terminals
!Need for offline mode increases technical complexity significantly
!Restaurant industry requires extensive field testing and edge case handling
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// related_resources