This repository implements a RESTful API for a simple todo application with user authentication, built using NestJS, Passport, TypeORM, and PostgreSQL. It provides registration and login (local strategy with JWT), session management via cookies, and CRUD operations for todos and user profiles. The architecture is a monolithic NestJS application with clearly separated modules (Auth, Todo, User) and uses standard patterns such as guards, interceptors, pipes, and filters. The codebase is well-tested with unit and end-to-end tests, includes stress testing with k6, and follows modern TypeScript practices with decorators and dependency injection. It serves as a practical example of integrating Passport authentication (local and JWT strategies) with NestJS and TypeORM, including custom validators, pagination interceptors, and ownership checks.