During August 2025, Chunel focused on improving the stability and reliability of the core execution engine in the nndeploy/nndeploy repository. He addressed a concurrency issue in the thread pool’s task stealing mechanism by implementing a safety check to ensure the target pool exists and contains tasks before stealing, thereby preventing null pointer dereferences and improving task distribution under concurrent load. Working in C++ and leveraging his expertise in multithreading and bug fixing, Chunel validated the fix with targeted tests. This work enhanced runtime consistency and reduced scheduling risks, contributing to more predictable deployment pipelines for both customers and internal teams.