Alix Lahuec expanded internationalization support in the faker-js/faker repository by adding ISO 3166-1 country codes for Canadian locales, specifically en_CA and fr_CA. Using TypeScript and leveraging expertise in locale data management, Alix integrated these codes into the locale indices, enabling faker to generate realistic Canadian region data for both English and French workflows. 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 careful attention to data fidelity and alignment with application requirements, though it was limited in scope to a single feature.