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. This change, implemented using git and version control best practices, aimed to reduce unnecessary noise in diffs and pull requests, resulting in a cleaner and more maintainable codebase. By addressing IDE-generated clutter, Aaron enhanced the developer experience, making onboarding smoother and code reviews more predictable. The work demonstrated disciplined commit hygiene and attention to detail, though it was limited in scope to a single feature update and did not involve bug fixes or complex language-specific development.