During February 2025, Uk worked on the tempesta-tech/tempesta repository, focusing on improving the reliability of TLS connection management using C and network security expertise. Uk addressed a critical issue in the handling of TLS close_notify alerts, ensuring compliance with RFC-5246 for graceful shutdowns and reducing the risk of TLS-related outages. The technical approach involved precise modifications to the shutdown logic and targeted code cleanup in tls.c, enhancing both maintainability and auditability. While the work did not introduce new features, it demonstrated depth in network programming and contributed to a more stable and future-proof TLS handshake and shutdown process.