How I Built a QR-Powered ERP for Garment Factories Using React, Firebase, and a Raspberry Pi 🧵⚡

Short summary

Scan ERP is a QR-powered production management system for garment factories, built with React, Firebase, and PWA to eliminate payment disputes and production delays through real-time tracking. The hybrid scanning engine achieves 99% accuracy on budget Android devices using BarcodeDetector API with jsQR fallback, processing scans in <200ms. The solution demonstrates why PWAs are superior to native apps for enterprise B2B adoption in low-tech manufacturing environments.

• •QR-powered ERP eliminates spreadsheet chaos, payment disputes, and production visibility delays for garment factories
• •Hybrid scanning engine (BarcodeDetector + jsQR) achieves 99% accuracy on cheap Android devices in <200ms
• •Modular Firebase architecture refactored from 3000-line monolith to domain-based services; PWA eliminates app store friction

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