During November 2025, Yuxuan Qiu focused on backend development for the YaLTeR/niri repository, addressing a critical issue in the TTY subsystem’s render node lifecycle. Using Rust, Yuxuan implemented a targeted bug fix that ensured render nodes remained active until the last primary node utilizing them was removed. This approach eliminated premature deactivation, improving resource management and enhancing the stability of rendering operations, particularly in multi-primary node configurations. The work demonstrated a deep understanding of system reliability and maintainability, as no new features were introduced, and all efforts were directed toward refining the robustness of the existing backend infrastructure.