Worked on the ArthurSeche/eleve5 repository to implement Google Tag Manager integration across six key site pages, enabling comprehensive analytics and user interaction tracking. Focused on enhancing data collection for marketing analytics and user journey insights, the work involved updating HTML templates and embedding JavaScript snippets to ensure accurate event tracking. Emphasized maintainability and traceability by making targeted commits for each affected page, including confirmation, contact, and product-related views. No bug fixes were reported during this period, as the primary objective was to establish robust analytics instrumentation using web development skills, with particular attention to analytics integration and Google Tag Manager.