Yingling Wang developed a new container image build command for the snowflakedb/snowflake-cli repository, leveraging Python and containerization techniques to streamline CI/CD workflows. The feature enables users to upload build contexts, initiate asynchronous build jobs using the SPCS service, and monitor progress through real-time log streaming. Yingling enhanced the CLI’s usability by refining help messages and documentation, ensuring the new command is easily discoverable. Comprehensive tests and updates to the test infrastructure were included to maintain reliability. The work focused on improving developer experience and accelerating container image creation, demonstrating depth in CLI development, Python programming, and automated testing practices.