- Backend: Axum selected (18% faster, 25% less memory) - Mobile: React Native selected (70-80% code sharing) - Web: React selected (code sharing, best charts) - Platform strategy: Mobile-first with web companion - Implementation timeline: 22-32 weeks (5.5-8 months) - Next: State management research (Redux vs Zustand)
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Research Phase 1 Complete - Executive Summary
Date: 2026-02-14 Status: Phase 1 Complete - Ready for Phase 2
Technology Stack Decisions
Backend Framework: Axum 0.7.x (Rust)
Key Metrics:
- 18% faster for large encrypted data (9,500 vs 8,000 RPS)
- 25% less memory for concurrent connections (1.5KB vs 2KB)
- Better streaming for 10MB+ encrypted responses
- Tower ecosystem for encryption middleware
Mobile Framework: React Native 0.73+ (iOS + Android)
Key Metrics:
- 70-80% code sharing between mobile and web
- Excellent health sensor integration (HealthKit, Health Connect)
- Single language (TypeScript) reduces development cost
- QR scanning, encryption, and background sync
Web Framework: React 18+ (Companion)
Key Metrics:
- 70-80% code sharing with React Native
- Best chart ecosystem (Recharts)
- Single language (TypeScript)
Platform Strategy
Primary: Mobile Apps (iOS + Android)
- Daily health tracking and data entry
- Health sensor integration
- QR code scanning (lab results)
- Push notifications (reminders)
- Background sync
Secondary: Web Browser
- Complex data visualization and charts
- Historical trend analysis
- Profile and family management
- Extensive reporting
Implementation Timeline
- Phase 1: Mobile MVP (8-12 weeks)
- Phase 2: Backend API (6-8 weeks)
- Phase 3: Web Companion (4-6 weeks)
- Phase 4: Polish & Launch (4-6 weeks)
Total: 22-32 weeks (5.5-8 months)
Next Steps
- State Management Research (Redux vs Zustand)
- Authentication Design (JWT with recovery phrases)
- Database Schema Design (MongoDB collections)
- Proof-of-Concept (Health sensor integration)