Aaron Sung focused on improving repository hygiene for the virattt/ai-hedge-fund project by updating the .gitignore file to exclude Cursor IDE-specific files. Using git and version control best practices, Aaron ensured that IDE-generated artifacts no longer cluttered the repository, resulting in cleaner diffs and more predictable pull requests. This change streamlined onboarding for new contributors and enhanced the overall developer experience by reducing unnecessary noise in code reviews. Although the work was limited in scope, it demonstrated disciplined commit hygiene and attention to maintainability. The update was implemented in plaintext, reflecting a targeted approach to project cleanliness and workflow efficiency.