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+# Visual Splitwise: Interactive Expense Tracking and Group Financial Visualization
+
+## Project Overview
+
+Visual Splitwise is an innovative web application designed to simplify and enhance expense tracking and visualization for Splitwise groups. Built with modern web technologies, the application provides users with a comprehensive and intuitive way to understand group financial dynamics.
+
+### Core Purpose
+
+The application addresses the common challenges of tracking shared expenses by offering a visual and interactive approach to understanding group financial balances. It transforms complex financial data into clear, easily digestible charts and indicators.
+
+### Key Features
+
+- **Interactive Expense Visualization**: Renders an interactive bar chart that displays member balances within a Splitwise group
+- **Real-time Data Retrieval**: Fetches and updates group expense data directly from the Splitwise API
+- **Dynamic Group Selection**: Allows seamless navigation between different Splitwise groups through a user-friendly dropdown
+- **Responsive Design**: Ensures a consistent and accessible experience across desktop and mobile devices
+- **Balance Indicator**: Color-coded balance representation (green for positive, red for negative) for instant financial insights
+
+### Benefits
+
+- Simplifies expense tracking for shared groups
+- Provides immediate visual understanding of group financial status
+- Enables quick identification of who owes what in a group
+- Supports multiple groups and real-time data synchronization
+- Mobile-friendly interface for on-the-go expense management
+
+## Getting Started, Installation, and Setup
+
+### Prerequisites
+
+- Node.js (version 20 or higher)
+- npm (comes with Node.js)
+
+### Quick Start
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/your-repo/visual-splitwise.git
+   cd visual-splitwise
+   ```
+
+2. Install dependencies:
+   ```bash
+   npm install
+   ```
+
+3. Set up environment variables:
+   Create a `.env` file in the project root and add the necessary configuration variables. Refer to the `.env.production` file for a template.
+
+### Development Server
+
+To run the application in development mode:
+
+```bash
+npm run dev
+```
+
+The application will be available at `http://localhost:3000`.
+
+### Building for Production
+
+To create a production build:
+
+```bash
+npm run build
+```
+
+To start the production server after building:
+
+```bash
+npm start
+```
+
+### Running Tests
+
+#### Unit and Integration Tests
+```bash
+npm test
+```
+
+#### End-to-End Tests
+```bash
+npm run test:e2e
+```
+
+### Additional Development Tools
+
+- **Storybook**: Run component development environment
+  ```bash
+  npm run storybook
+  ```
+
+- **Linting**: Check code quality
+  ```bash
+  npm run lint
+  ```
+
+### Database Management
+
+- Generate database migrations:
+  ```bash
+  npm run db:generate
+  ```
+
+- Run database migrations:
+  ```bash
+  npm run db:migrate
+  ```
+
+### Environment Support
+
+- **Node.js Version**: 20+
+- **Platforms**: Works on Windows, macOS, and Linux
+- **Browsers**: Modern browsers (Chrome, Firefox, Safari, Edge)
+
+### Troubleshooting
+
+- Ensure all environment variables are correctly set
+- Check that you're using the correct Node.js version (20+)
+- If encountering dependency issues, try `npm ci` instead of `npm install`
+
+## Deployment
+
+### Prerequisites
+
+- Node.js (version 20 or higher)
+- npm or yarn package manager
+
+### Build Process
+
+To build the application for production, use the following command:
+
+```bash
+npm run build
+```
+
+This command compiles the Next.js application and prepares it for deployment.
+
+### Local Production Testing
+
+To run the application in production mode locally:
+
+```bash
+npm run start
+```
+
+### Deployment Platforms
+
+#### Vercel (Recommended)
+The project is optimized for Vercel deployment:
+- Connect your GitHub repository to Vercel
+- Vercel will automatically detect the Next.js project
+- Configure environment variables in the Vercel project settings
+- Deploy with a single click from the main branch
+
+#### Docker Deployment
+
+While no Dockerfile is present in the repository, you can create a basic Dockerfile:
+
+```dockerfile
+FROM node:20-alpine AS base
+
+# Install dependencies
+FROM base AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Build the application
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npm run build
+
+# Production image
+FROM base AS runner
+WORKDIR /app
+ENV NODE_ENV production
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/public ./public
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+USER nextjs
+EXPOSE 3000
+ENV PORT 3000
+
+CMD ["node", "server.js"]
+```
+
+### Continuous Deployment
+
+The project includes GitHub Actions workflows (see `.github/workflows/`) for:
+- Continuous Integration (CI)
+- Automated testing
+- Release management
+
+### Database Migrations
+
+For production database migrations, use:
+
+```bash
+npm run db:migrate
+```
+
+### Environment Configuration
+
+- Use `.env.production` for production-specific environment variables
+- Ensure all required environment variables are set in your deployment platform
+
+### Performance Optimization
+
+- The build process includes optimization for production
+- Use `npm run build-stats` to analyze bundle size
+
+## Feature Highlights
+
+### Authentication and User Management
+- Secure authentication powered by Clerk
+- Internationalized sign-in and sign-up flows supporting multiple locales
+- User profile management capabilities
+
+### Internationalization
+- Multi-language support with dynamic locale switching
+- Localized routing and content translation
+- Supports at least English and French languages
+
+### Dashboard
+- Personalized user dashboard 
+- Welcome screen with dynamic greeting
+- Responsive and user-friendly interface
+
+### API and Integration
+- API endpoints for Splitwise group and expense management
+- Integrated analytics and monitoring support
+- Serverless-friendly architecture with Next.js
+
+### Technological Features
+- Fully responsive design using Tailwind CSS
+- Client-side and server-side rendering
+- Performance optimization and modern web best practices
+
+## Configuration
+
+### Environment Configuration
+
+The project uses environment variables for configuration. Key configuration files include:
+
+- `.env`: Contains environment-specific settings for various services
+- `next.config.ts`: Provides Next.js configuration
+- `drizzle.config.ts`: Database migration configuration
+- `tailwind.config.ts`: Tailwind CSS styling configuration
+
+#### Environment Variables
+
+Critical environment variables include:
+- `CONSUMER_KEY`: OAuth consumer key
+- `CONSUMER_SECRET`: OAuth consumer secret
+- `SPLITWISE_API_KEY`: API key for Splitwise integration
+- `MONGODB_URI`: MongoDB connection string
+- `NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY`: Clerk authentication public key
+- `CLERK_SECRET_KEY`: Clerk authentication secret key
+- `NEXT_PUBLIC_POSTHOG_KEY`: PostHog analytics key
+
+#### Next.js Configuration Highlights
+- Strict mode enabled
+- ESLint configured for specific directories
+- Sentry error tracking integrated
+- Internationalization support
+- Bundle analyzer optional
+
+#### Tailwind CSS Configuration
+- Dark mode support
+- Custom theme extensions
+- DaisyUI plugin integrated
+- Content sources configured for automatic class detection
+
+#### Database Migration
+- Uses Drizzle ORM for database migrations
+- Configured for PostgreSQL
+- Migration files stored in `./migrations`
+
+#### Security and Monitoring
+- Sentry configuration with:
+  - Source map upload
+  - React component annotation
+  - Tunneling route for monitoring
+  - Automatic Vercel Cron Monitors
+
+### Sensitive Data Handling
+Sensitive configuration details should be added to `.env.local`, which is not tracked by version control.
+
+## Technologies Used
+
+### Core Technologies
+- **Framework**: Next.js 15
+- **Language**: TypeScript
+- **Runtime**: Node.js (v20+)
+
+### Frontend
+- React 19
+- React DOM
+- Tailwind CSS
+- DaisyUI
+- React Hook Form
+- Chart.js
+- Recharts
+
+### Backend and Database
+- Drizzle ORM
+- PostgreSQL
+- MongoDB
+- Electric SQL (PGLite)
+
+### Authentication and Security
+- Clerk Authentication
+- Arcjet (Rate Limiting)
+- Sentry (Error Monitoring)
+
+### Internationalization
+- next-intl (Internationalization)
+
+### Development and Testing Tools
+- Vitest (Unit Testing)
+- Playwright (E2E Testing)
+- ESLint
+- Storybook
+- Husky (Git Hooks)
+- Commitlint
+
+### Logging and Monitoring
+- Pino (Logging)
+- PostHog (Analytics)
+
+### Deployment and CI/CD
+- GitHub Actions
+- Semantic Release
+
+### Additional Tools
+- Zod (Validation)
+- PostCSS
+- Docker (via configuration)
+
+## Additional Notes
+
+### Performance and Optimization
+
+The application is built with performance in mind, leveraging modern web technologies:
+- Uses Next.js server-side rendering for improved initial load times
+- Implements client-side data fetching for responsive user experience
+- Utilizes Recharts for efficient and lightweight data visualization
+
+### Internationalization Support
+
+The project includes full internationalization (i18n) capabilities:
+- Supports multiple languages (currently English and French)
+- Language switching functionality via `LocaleSwitcher` component
+- Localization files stored in `/src/locales`
+
+### Error Handling and Monitoring
+
+Integrated advanced error tracking and monitoring:
+- Sentry integration for real-time error reporting
+- PostHog analytics for user behavior insights
+- Comprehensive logging with Pino logging library
+
+### Security Considerations
+
+Built with security best practices:
+- Clerk authentication for secure user management
+- Arcjet middleware for rate limiting and protection
+- Environment-specific configuration management
+
+### Development Toolchain
+
+Robust development ecosystem with:
+- TypeScript for type safety
+- Vitest and Playwright for comprehensive testing
+- ESLint for code quality
+- Husky for git hook management
+- Storybook for component development and documentation
+
+### Database and ORM
+
+Flexible data management:
+- Drizzle ORM for database interactions
+- Support for multiple database providers (PostgreSQL, MongoDB)
+- Database migration scripts included
+
+### Deployment Readiness
+
+Prepared for various deployment scenarios:
+- Optimized production build scripts
+- CI/CD workflows with GitHub Actions
+- Compatibility with modern hosting platforms
+
+## Contributing
+
+We welcome contributions to this project! To ensure a smooth collaboration, please follow these guidelines:
+
+### Code Contribution Process
+
+1. Fork the repository and create your branch from `main`
+2. Ensure your code follows the project's coding standards:
+   - Use TypeScript for type safety
+   - Follow ESLint configuration (configured with `@antfu/eslint-config`)
+   - Write clear, concise, and descriptive code
+
+### Commit Guidelines
+
+We use conventional commits to maintain a clear and structured commit history:
+- Commits must follow the [Conventional Commits](https://www.conventionalcommits.org/) specification
+- Use `npm run commit` to create commits through Commitizen, which helps format your commit messages
+
+### Development Setup
+
+- Minimum Node.js version: 20
+- Install dependencies with `npm install`
+- Run development server: `npm run dev`
+
+### Testing
+
+Before submitting a pull request, ensure all tests pass:
+- Run unit tests: `npm test`
+- Run end-to-end tests: `npm run test:e2e`
+- Run type checks: `npm run check-types`
+- Run linter: `npm run lint`
+
+### Pull Request Process
+
+1. Update the documentation if your changes require it
+2. Ensure all tests and checks pass
+3. Your pull request will be reviewed by the maintainers
+
+### Code of Conduct
+
+We are committed to providing a friendly, safe, and welcoming environment for all contributors.
+
+## License
+
+This project is licensed under the MIT License. 
+
+### License Details
+
+The MIT License is a permissive free software license that allows you to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software, with the only requirement being that you include the original copyright notice and license text in any substantial portion of the software.
+
+### Copyright
+
+Copyright (c) 2024 Remi W.
+
+For the full license text, see the [LICENSE](LICENSE) file in the repository.
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