Worked on improving repository hygiene and developer experience for the incubateur-ademe/nosgestesclimat-site-nextjs project by focusing on documentation and tooling refinements. Updated the README to clarify language and testing framework references, and revised the .gitignore file to exclude IDE-specific files, reducing unnecessary repository noise. These changes streamlined onboarding for new contributors and aligned continuous integration and testing practices. Leveraged skills in documentation, Git, and version control, using Markdown to enhance clarity and maintainability. The work enabled cleaner diffs and faster pull request reviews, while co-authored commit attribution supported better collaboration and traceability within the development workflow. No bugs were addressed.