Over a two-month period, this developer contributed to apache/brpc and apache/kvrocks, focusing on backend reliability and protocol compatibility. In apache/brpc, they resolved gRPC authentication error reporting issues by standardizing error messages and codes, improving cross-client interoperability and observability, and expanding unit test coverage using Go. For apache/kvrocks, they implemented CLIENT PAUSE/UNPAUSE commands and automated topology updates to enhance failover resilience, ensuring clients receive accurate routing during node failures. Their work involved C++ and Go development, deepening Redis protocol alignment and collaborating on cluster management features. Comprehensive unit and integration tests validated robustness and reduced the risk of regressions.