Website: React.js, TypeScript, Next.js Mobile: React Native, TypeScript, Expo QR Code Scanner: Expo Camera Styling: Tailwind CSS, NativeWind UI Libraries: DaisyUI, Tamagui Animations: React Native Reanimated Icons: Phosphor Icons Form Validation: Zod API Handling: Axios (with Interceptors), TanStack Query Framework: Go (Gin) Email OTP Service: Gomail Reading and Writing Spreadsheet Documents: Excelize Job Scheduler: cron Environment Management: Godotenv Image Optimization: GridFS Model Manager: Ollama AI Model: Typhoon 2 (3B parameters) Real-time Communication: Gorilla WebSocket Virtual Machine: SIT VM API Gateway: Kong Kong GUI: Kong Admin Kong Plugin: rate-limiting CI/CD: GitHub Actions Containerization: Docker, Docker Compose Relational DB (Kong User Management): PostgreSQL NoSQL DB: MongoDB In-Memory Store: Redis Frontend: Design System Backend: Clean Architecture Authentication: JWT Project Management: Jira Communication: Discord Emulators: Xcode, Android Studio IDEs: VS Code, GoLand, DataGrip Testing: Postman (Test scripts), Google Sheets (UAT) User Research Documentation: Notion Design: Figma, Procreate, Canva, draw.io