Arno Stiefvater contributed to the greenbone/openvas-scanner repository by standardizing default configuration settings to streamline the setup process and improve deployment reliability. He implemented configuration management practices using TOML to align the default scanner with OpenVAS and set the default storage back-end to Redis, reducing onboarding friction and ensuring consistency across deployments. His work focused on updating configuration examples, making it easier for users to adopt and maintain the scanner. While the scope was limited to a single feature over one month, Arno’s targeted changes enhanced maintainability and provided a foundation for future improvements in configuration management within the project.