Worked on the openfoodfacts/openfoodfacts-webcomponents repository to enhance the TypeScript integration within the Vite build process. Implemented automated generation of TypeScript type definitions, producing .d.ts files that enable downstream consumers to benefit from autocomplete, type checking, and error warnings when using the webcomponents library. This improvement streamlined the developer experience for projects adopting TypeScript, making integration smoother and reducing potential runtime errors. The work focused on front end development, leveraging both JavaScript and TypeScript, and demonstrated a targeted approach to improving tooling and maintainability for TypeScript-based projects without introducing new bugs or regressions during the implementation period.