Bete-Nebab Language Learning Application

Bete-Nebab follows a monolithic client–server architecture where all core business logic resides in a single NestJS backend service. The backend handles authentication, lesson scheduling, progress calculations, leaderboard ranking, caching, object storage access, and third-party integrations. PostgreSQL serves as the primary relational database with read replicas for scalability, while Redis accelerates access to frequently requested data such as lessons and leaderboards. Multimedia content is stored in Telecloud object storage and delivered efficiently to clients. The system is fully containerized and orchestrated with Kubernetes, enabling horizontal scaling, self-healing, rolling updates, and high availability. Nginx acts as a reverse proxy and load balancer, ensuring reliable traffic distribution across backend pods.