May 2025 monthly summary across two repositories (UBB-SE-2025-927-1 and UBB-SE-2025-927-1-A5). Delivered stability, API/data integration, and cross-platform support while improving deployment reliability and development ergonomics. Key outcomes include robust async handling, stabilized CI/CD pipelines, API-to-UI data exposure, and expanded development scope with DuoClassLibrary integration and CORS policy improvements. Notable focus areas were environment configuration, test stability, and performance tuning to reduce operational risk and support faster, safer releases.

April 2025 was marked by foundational API work, strong DX improvements, and quality hygiene that set the stage for scalable development and faster feature delivery. The team established a robust Duo API base architecture, introduced standardized dependency injection, and enhanced serialization with coding conventions, enabling more maintainable and consistent API surfaces. We also scaffolded the Duo API project structure with core domain models (courses, users, exercises) and EF Core persistence, and set up a forward-looking testing framework for .NET 9+ while removing outdated test artifacts to reduce CI noise. Additionally, data model ergonomics and data access were improved by removing JSON serialization handling for exercise properties in the DataContext and modernizing constructors with object initializers. Through these efforts, the API is now more onboarding-friendly, reliable, and ready for iterative feature development with stronger quality gates.