Andy Wang focused on enhancing build reliability for the rspack-contrib/rstack-examples repository by addressing issues in CSS processing. He implemented a targeted fix in the Rspack configuration, ensuring the lightningcss-loader applied exclusively to CSS files and removing a redundant CSS rule. This adjustment prevented JavaScript comments embedded in CSS from being misprocessed, reducing build errors and streamlining the CSS pipeline. Working primarily with JavaScript and leveraging skills in build tools and configuration, Andy’s work improved consistency across environments and reduced the risk of production regressions. The depth of the solution demonstrated careful attention to maintainability and cross-environment correctness.