A production-style backend inspired by Spotify supporting playlist CRUD and recommendation strategies. Built with FastAPI and Redis, it showcases cache-aside caching, token bucket rate limiting, and design patterns like SOLID, Strategy, and Observer, focusing on scalability, performance, and clean architecture.

OpenMusic RESTful API v2 with JWT authentication, private playlists, role-based authorization, PostgreSQL normalization, migrations, and modular service–handler architecture.