Worked on improving repository hygiene for the sozalpasan1/HWKartKlash project by addressing the issue of unwanted macOS system files being tracked in version control. Implemented a targeted update to the .gitignore configuration, specifically excluding .DS_Store files, which are commonly generated by macOS and can clutter code reviews and repository history. This change streamlined collaboration by ensuring that only relevant source files are included in commits, reducing noise and potential merge conflicts. Utilized version control best practices and focused on repository management, demonstrating attention to detail in maintaining a clean development environment. The work centered on Git and .gitignore configuration.