In February 2026, Georgios Evangelopoulos focused on backend development for the TUM-Dev/gocast repository, delivering a feature that enhanced chat message rendering and performance. He refactored chat-related models to use pointer receivers in Go, reducing memory usage and improving execution speed. Additionally, he developed a URL HTML rendering utility to sanitize and safely render chat messages, addressing both security and user experience concerns. By concentrating on performance optimization and maintainability, Georgios positioned the codebase for future enhancements. His work demonstrated depth in Golang and backend engineering, with a clear focus on scalable, secure chat functionality within the project.