Tobias Gabriel contributed to SAP/InfraBox and gardenlinux/gardenlinux by focusing on documentation clarity and CI/CD optimization. For SAP/InfraBox, he streamlined the README by removing the build status link, aligning documentation with updated project standards and improving onboarding for new contributors. In gardenlinux/gardenlinux, Tobias enhanced the CI pipeline by switching the upload_to_s3 GitHub Actions workflow to use ubuntu-24.04 runners, leveraging free self-hosted resources to reduce S3 upload costs while maintaining pipeline stability. His work utilized Markdown and YAML for documentation and workflow configuration, demonstrating a methodical approach to repository maintenance and cost-effective automation without introducing regressions.