Lizhiqiang worked on arana-db/kiwi and valkey-io/valkey-doc, focusing on network programming, protocol implementation, and Rust. Over two months, he refactored kiwi’s network layer to introduce a modular command execution framework with ping/pong support, abstracting network streams and standardizing server response protocols to improve reliability and scalability. He enhanced the command API by removing mutable references, increasing safety and readability. In valkey-doc, he updated documentation to clarify CLI benchmarking controls, specifically the --rps flag. Lizhiqiang’s work demonstrated depth in asynchronous programming and refactoring, delivering maintainable, extensible solutions without requiring bug fixes during the period.