During October 2024, Gael Poette developed an End-of-Calculation Indicator for the gaelpoette/COURS_COLLAB_2024 repository, focusing on enhancing user experience through immediate feedback. Using Python scripting, Gael implemented a simple print statement to signal the completion of calculations, deliberately avoiding changes to the core calculation logic to maintain system stability. This non-intrusive approach improved observability and laid the foundation for future user feedback features. The work was delivered as a single, well-documented commit, ensuring traceability and ease of maintenance. No bugs were addressed during this period, and the codebase remained stable, reflecting a careful and incremental engineering approach.