Developed a centralized domain ownership and DNS records management feature for the is-a-dev/register repository, introducing a per-user JSON configuration system. The work focused on backend development and configuration management, leveraging JSON for structured data formatting and streamlined data management. The initial implementation defined domain ownership and DNS records for a specific user, while a follow-up refinement improved the configuration by removing unnecessary fields and enhancing formatting. This approach reduced manual effort and minimized misconfiguration risks, establishing a scalable foundation for future multi-user domain management. The project demonstrated skills in JSON schema design, clean code practices, and Git-based version control workflows.