1. Define the project structure (src/, auth/, posts/, config.py, database.py, main.py).
2. Set up async routes using `async/await` to avoid blocking the event loop.
3. Implement Pydantic models for data validation, ensuring type safety and data integrity.
4. Use FastAPI's `Depends()` for dependency injection to manage dependencies effectively.
5. Configure SQLAlchemy for async database operations, including session management.
6. Integrate Redis caching using Upstash to improve API performance.
7. Implement rate limiting using Upstash to protect API endpoints from abuse.