During May 2025, Ilya Mirkin developed and delivered esbuild-based support for dataURL and base64 loaders in the angular/angular-cli repository. This feature allows developers to import file contents as strings, either as data URLs or base64, directly within the Angular build process. Ilya implemented option normalization to ensure consistent loader behavior and wrote comprehensive tests to validate the new functionality. Working primarily with TypeScript, Angular, and esbuild, he focused on enhancing asset handling and developer experience by streamlining content delivery and reducing manual steps. The work demonstrated depth in build tool integration and test-driven development, with robust, well-tested code.