Tech Stack
The technologies behind LHTz apps.
Frontend
โ๏ธ React Native
A cross-platform mobile app development framework. Supports iOS, Android, and Web.
All Apps
๐ฆ Expo
A development platform for React Native. Integrates builds, OTA updates, and native module management.
All Apps
๐ฆ TypeScript
Type-safe JavaScript. Used across all projects.
All Apps
๐จ NativeWind
A styling library that brings Tailwind CSS to React Native.
StockHomeTodoBox้บป้ๅธWord DiaryMuggRete
๐ i18next
Internationalization framework. Supports Japanese, English, and Vietnamese.
All Apps
Backend & Infrastructure
๐ข Supabase
A BaaS providing authentication, database, and real-time sync. Built on PostgreSQL.
StockHomeTodoBoxLife CalendarWord DiaryMugg
โ๏ธ AWS
Serverless backend with API Gateway + DynamoDB. Hosted in the Tokyo region.
้บป้ๅธ
โก Serverless Framework
A framework for automating AWS resource management and deployment.
้บป้ๅธ
๐ฅ Firebase
Google's mobile platform providing authentication, Firestore, and Cloud Messaging.
Rete
โ๏ธ GCP Cloud Run
Container-based serverless API hosting. Hosted in the Tokyo region.
Rete
๐ท Azure
Backend service platform.
Word Diary
๐ถ Hono
Ultra-lightweight, high-performance web framework. Supports Edge / Node.js / Bun.
Rete
๐ Google Maps API
Map display, location search, and Place API integration.
MuggRete
AI
โจ Gemini API
Powers AI-driven features using Google's AI models.
Life Calendar
Monitoring & DevOps
๐ Sentry
Real-time error tracking and performance monitoring.
All Apps
๐ EAS Build
Expo's cloud build service. Manages distribution to the App Store and Google Play.
All Apps
๐ GitHub Pages
Hosting for this website. Auto-deploys on every push.
lh.tools
Development
๐ค Claude Code
AI pair programming. Assists with coding, review, and debugging.
All Appslh.tools
Technology Matrix by App
| Expo | TS | NW | i18n | Sentry | Backend | Other | |
|---|---|---|---|---|---|---|---|
| StockHome | ✓ | ✓ | ✓ | ✓ | ✓ | Supabase | โ |
| Mahjong Cho | ✓ | ✓ | ✓ | ✓ | ✓ | AWS | AdMob |
| Life Calendar | ✓ | ✓ | โ | ✓ | ✓ | Supabase | Gemini |
| TodoBox | ✓ | ✓ | ✓ | ✓ | ✓ | Supabase | โ |
| Word Diary | ✓ | ✓ | ✓ | ✓ | ✓ | Azure | โ |
| Mugg | ✓ | ✓ | ✓ | ✓ | ✓ | Supabase | Maps |
| Rete | ✓ | ✓ | ✓ | ✓ | ✓ | Firebase / GCP | Maps, Hono |