Syncre Mobile

Syncre is a secure, cross-platform mobile communication application built with React Native and Expo. It focuses on privacy and security through end-to-end encryption for all communications.

✨ Features

• Secure Messaging: End-to-end encrypted one-on-one conversations.
• User Authentication: Secure user registration, login, and profile management.
• Friend System: Users can search for others, send friend requests, and manage their friend list.
• Real-time Communication: Utilizes WebSockets for instant message delivery.
• Push Notifications: Stay updated with new messages and friend requests even when the app is closed.
• Cross-Platform: Runs on iOS, Android, and Web from a single codebase.

🚀 Technologies Used

• Framework: React Native with Expo
• Routing: Expo Router for file-based navigation.
• UI Components: NextUI for the user interface.
• State Management & Data: React Context and custom hooks.
• Encryption:
  • @stablelib/hkdf
  • @stablelib/sha256
  • @stablelib/xchacha20poly1305
  • expo-crypto
  • tweetnacl
• Storage: AsyncStorage and Expo Secure Store for persistent and secure data storage.
• Real-time: WebSockets
• Linting: ESLint
• Typing: TypeScript

🏁 Getting Started

Prerequisites

• Node.js (LTS version recommended)
• npm or pnpm
• Expo Go app on your mobile device for development, or Android Studio/Xcode for emulators.

Installation

1. Clone the repository:

   git clone <repository-url>
   cd Mobile

2. Install dependencies:

   npm install
   # or
   pnpm install

📜 Available Scripts

• npm start: Starts the development server with Expo.
• npm run android: Runs the app on a connected Android device or emulator.
• npm run ios: Runs the app on an iOS simulator or connected device.
• npm run web: Runs the app in a web browser.
• npm run lint: Lints the codebase using ESLint.
• npm run build: Creates a production build for iOS using EAS Build and submits it.
• npm run real-build: Creates release builds for both iOS and Android.

📁 Project Structure

.
├── app/                # Expo Router routes (screens)
│   ├── chat/           # Dynamic route for individual chats
│   ├── _layout.tsx     # Main layout
│   ├── index.tsx       # Login/entry screen
│   └── ...             # Other screens (profile, settings, etc.)
├── assets/             # Static assets (images, fonts)
├── components/         # Reusable UI components
├── context/            # React context providers
├── hooks/              # Custom React hooks
├── services/           # Core services (API, Crypto, WebSocket, etc.)
├── screens/            # (Potentially legacy) Screen components
└── ...                 # Config files, etc.

📄 License

This project is licensed under the GNU GENERAL PUBLIC LICENSE.