Worked on backend repository hygiene for the Wolferlk/Rent_A_Car_project by implementing a Git-based solution to prevent environment-specific configuration files from being committed. Addressed a security concern by updating the .gitignore to exclude .env files, reducing the risk of sensitive data exposure and minimizing unnecessary changes in version control. This adjustment streamlined code reviews and improved onboarding by ensuring that environment secrets remained local and reproducible setups were easier to maintain. The work demonstrated practical use of Git and configuration management, focusing on secure development practices and aligning with DevOps standards to enhance the overall workflow for the backend team.