Arthur Brandão contributed to the verg1lio/XangoER repository by enhancing documentation quality and maintainability. He focused on improving author attribution and formatting, ensuring that contributor information is clearly visible and documentation remains consistent for future audits and onboarding. Using Python scripting, Arthur updated digitaltwin_bodyandframe.py to align code comments with the new documentation standards, adding a trailing newline for formatting hygiene. His work addressed the need for clearer contributor recognition and streamlined documentation practices, supporting better project transparency. While the scope was limited to documentation updates over a one-month period, the changes laid groundwork for improved collaboration and maintainability.