In April 2025, Mvk focused on stabilizing the ServerStreamMultiPublisher component within the facebook/fbthrift repository, addressing reliability and throughput issues under high-load conditions. By redesigning map iteration and introducing a new subscription path, Mvk resolved a concurrency deadlock that previously risked outages during stress scenarios. The work involved deep debugging of asynchronous C++ code, careful attention to thread safety, and enhancements to the streaming protocol to ensure robust handling of multiple subscriptions. Although the period did not include new feature development, the targeted bug fix demonstrated strong skills in C++ development, asynchronous programming, and the use of modern testing frameworks.