Add comprehensive README with project philosophy, stack, roadmap, and integrations

README.md

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-# .github
+# Invoicerr
+
+> A modern, open-source invoicing application designed to simplify billing and financial management for freelancers and small businesses.
+
+## 🎯 Philosophy
+
+Invoicerr is built on the principle that invoicing should be **simple, transparent, and efficient**. We believe that:
+
+- **Simplicity First**: Creating and managing invoices shouldn't require a degree in accounting. Our interface is intuitive and straightforward.
+- **Open Source**: Transparency builds trust. Our codebase is open for inspection, contribution, and self-hosting.
+- **Privacy-Focused**: Your financial data belongs to you. We prioritize data privacy and give you control over where your information lives.
+- **Extensible**: Built with modern architecture to allow customization and integration with other tools.
+- **Community-Driven**: We value feedback and contributions from our users and developers.
+
+## 🚀 Features
+
+- **Invoice Management**: Create, edit, and send professional invoices
+- **Client Management**: Organize and track client information
+- **Payment Tracking**: Monitor payment status and history
+- **Multi-Currency Support**: Handle invoices in different currencies
+- **PDF Export**: Generate professional PDF invoices
+- **Customizable Templates**: Personalize invoice appearance to match your brand
+- **Dashboard & Analytics**: Get insights into your business performance
+- **Responsive Design**: Works seamlessly on desktop and mobile devices
+
+### 🔌 Integrations
+
+- **Signature**: 
+  - [Documenso](https://documenso.com/) - Open-source document signing platform
+- **Webhooks**: Real-time event notifications to:
+  - Discord
+  - Slack
+  - Microsoft Teams
+  - Mattermost
+  - Rocket.Chat
+  - Zapier
+  - Generic/Custom webhooks
+- **Storage**: 
+  - Amazon S3 (and S3-compatible services)
+  - Local Storage
+
+## 🛠️ Technology Stack
+
+### Frontend
+- **Framework**: React.js with TypeScript
+- **State Management**: Redux Toolkit
+- **UI Library**: Tailwind CSS / Material-UI
+- **Build Tool**: Vite
+- **Testing**: Jest + React Testing Library
+
+### Backend
+- **Runtime**: Node.js
+- **Framework**: Express.js / NestJS
+- **Database**: PostgreSQL
+- **ORM**: Prisma / TypeORM
+- **Authentication**: JWT / OAuth 2.0
+- **API**: RESTful API / GraphQL
+
+### Infrastructure
+- **Containerization**: Docker
+- **CI/CD**: GitHub Actions
+
+## 📋 Project Status
+
+### ✅ Done
+- [x] Project architecture design
+- [x] Repository structure setup
+- [x] Basic authentication system
+- [x] Database schema design
+- [x] Core API endpoints
+- [x] Invoice creation and management UI
+- [x] PDF generation service
+- [x] Email notification system
+- [x] Multi-language support (i18n)
+
+### 🚧 In Progress
+- [ ] Payment gateway integration
+- [ ] Comprehensive test coverage
+
+### 📝 TODO
+- [ ] Recurring invoices functionality
+- [ ] Expense tracking module
+- [ ] Time tracking integration
+- [ ] Advanced reporting and analytics
+- [ ] API documentation (OpenAPI/Swagger)
+- [ ] Third-party integrations (Stripe, PayPal, etc.)
+- [ ] Multi-tenant support
+- [ ] Role-based access control (RBAC)
+- [ ] Automated backup system
+
+## 🤝 Contributing
+
+We welcome contributions from the community! Whether it's:
+
+- 🐛 Bug reports
+- 💡 Feature requests
+- 📝 Documentation improvements
+- 🔧 Code contributions
+
+Please check our [Contributing Guidelines](CONTRIBUTING.md) for more details.
+
+## 📦 Getting Started
+
+### Prerequisites
+- Docker
+- Docker Compose
+
+### Installation
+
+```bash
+# Clone the repository
+git clone https://github.com/invoicerr-app/invoicerr.git
+
+# Navigate to the project directory
+cd invoicerr
+
+# Edit environment variables in docker-compose.yml
+# Configure your settings as needed
+
+# Start the application
+docker compose up
+
+# The application will be available at http://localhost (port 80 by default)
+```
+
+## 📄 License
+
+This project is dual-licensed:
+- **[AGPL-3.0 License](https://github.com/invoicerr-app/invoicerr?tab=AGPL-3.0-1-ov-file)** - For open source use
+- **[Commercial License](https://github.com/invoicerr-app/invoicerr/blob/main/LICENSE.COMMERCIAL.md)** - For commercial/proprietary use
+
+See the respective LICENSE files for details.
+
+## 💬 Support
+
+Need help? Have questions?
+
+- 🐛 Issues: [GitHub Issues](https://github.com/invoicerr-app/invoicerr/issues)
+
+---
+
+**Made with ❤️ by the Invoicerr Team**