Koyeba
Real-time multiplayer trivia, gaming tournaments, and brain-battles mobile platform.
Koyeba is a high-performance multiplayer trivia and tournament mobile app designed for fast-paced gameplay, real-time match synchronization, and offline accessibility.
Mobile multiplayer games often suffer from high latency, expensive persistent server setups, and total failure when operating under unreliable mobile connections.
THE TECHNICAL SOLUTIONA state-of-the-art mobile architecture combining Expo/React Native with local SQLite caching, backed by edge Cloudflare Workers and Durable Objects for stateful real-time lobbies.
Impact & Key Metrics
< 50ms
Edge room creation & sync latency
60 FPS
Game UI and animation rendering frame rate
100%
Offline gameplay compatibility
Full Stack Specifications
Frontend & UI
- React Native (0.86)
- Expo SDK 57
- Expo Router
- React Native Unistyles 3.3
- React Native Skia
- Legend List
- Zustand
- TanStack Query
Backend & Microservices
- TypeScript
- Hono API
- Cloudflare Workers
- Cloudflare Durable Objects
- Zod OpenAPI
Database & Caching
- Turso (LibSQL)
- Drizzle ORM
- Expo SQLite
- MMKV
DevOps & Tooling
- Wrangler CLI
- Cloudflare Edge Engine
- EAS (Expo Application Services)
Third-Party APIs
- Google Sign-In
- Apple Authentication
- Expo Push Notifications
Key Architecture Decisions
Real-Time Lobbies via Cloudflare Durable Objects
Ultra-fast stateful WebSocket room management and match synchronization executed globally at the edge with zero traditional server overhead.
Offline-First Mobile Architecture with Local SQLite & Drizzle ORM
On-device caching of user progress, question banks, and scores using Expo SQLite and MMKV with automated cloud background syncing.
60 FPS Visual Rendering with React Native Skia & Unistyles
GPU-accelerated custom animations, countdown canvas, and zero-runtime theme engines ensuring maximum frame rates across all mobile hardware.
Core Features Breakdown
Real-Time Multiplayer Matchmaking
Instant lobby generation and real-time live scoring synchronized over WebSocket channels.
Offline Practice Mode
Single-player games fully playable offline using on-device SQLite database storage.
Tournaments & Global Leaderboards
Scheduled competitions with dynamic leaderboards and automated cron-based rewards distribution.
Interactive Canvas & Visual Engine
Dynamic gaming interface featuring hardware-accelerated timers, celebration particles, and haptic feedback.