Worked on the NordSecurity/libtelio repository to address a specific issue related to network interface notifications. Focused on refining the dynamic store callback, the developer implemented a targeted bug fix that restricts path-change broadcasting to primary network interfaces. This adjustment reduces unnecessary notification noise and potential processing overhead, particularly in multi-interface environments, while maintaining system correctness and stability. The change was carefully isolated to minimize risk and avoid impacting existing behavior for non-primary interfaces. Leveraging expertise in Rust, network programming, and system programming, the developer contributed a precise and performance-oriented solution that enhances reliability without introducing new features.