During April 2025, Kbhoon developed comprehensive documentation for real-time notifications using Server-Sent Events (SSE) in the Kernel360/blog repository. Focusing on Java and technical writing, Kbhoon detailed the rationale for choosing SSE over WebSockets for unidirectional data flow, provided an architectural overview, and included practical code examples covering controller setup, connection management, and notification delivery. This work produced a reusable reference that streamlines onboarding and cross-team adoption of real-time features, enhancing maintainability and implementation speed. The depth of the documentation ensures clear knowledge transfer, supporting future development efforts and establishing a foundation for consistent real-time notification integration across services.