Alix Lahuec expanded internationalization support in the faker-js/faker repository by integrating ISO 3166-1 country codes for Canadian locales, specifically en_CA and fr_CA. Using TypeScript and leveraging skills in locale data management, Alix added these codes to the locale indices, enabling faker to generate realistic Canadian region data for both English and French contexts. This enhancement addressed the need for more accurate test data generation and improved support for Canadian deployments. The work demonstrated a focused approach to broadening locale coverage, with depth in handling locale-specific data structures and aligning with broader objectives for data fidelity across applications.