During this period, contributed to the vitejs/vite repository by addressing a compatibility issue in the build pipeline related to CSS minification for ES6 targets. Focused on stabilizing the LightningCSS plugin, the work involved updating the minification process to recognize 'es6' as an alias for 'es2015', ensuring that builds targeting ES6/ES2015 functioned correctly. Utilized TypeScript and CSS expertise to implement the fix, document the new alias handling, and align the solution with project standards. This targeted bug fix improved build reliability for front end projects using modern JavaScript, supporting maintainability and compatibility for developers relying on vite.