Zak Shum focused on enhancing project documentation within the ML4DE_hackathon repository, addressing team identity and onboarding challenges. He updated text-based documentation files, renaming the team from 'Team 2' to 'Just Right' and replacing placeholder names with actual team members in team_members.txt. This work, carried out using text editing and documentation management skills, aimed to improve roster accuracy and streamline onboarding for new contributors. No functional or code-level changes were introduced, reflecting a targeted approach to governance and project transparency. The updates reduced confusion around team structure, supporting clearer project handoffs and more effective collaboration within the repository.