Developed a JSON-based domain management feature for the is-a-dev/register repository, introducing a portable store for domain ownership and DNS records. This solution leveraged JSON data modeling and file-based configuration to enable reliable governance and enhanced data portability for domain metadata. By integrating Git version control, the work established a traceable change history, supporting operational readiness for domain onboarding and automation. The approach focused on lightweight domain metadata management, ensuring data integrity and facilitating cross-system sharing. Throughout the project, the developer applied skills in data structuring and domain management, delivering a foundational capability without addressing major defects during the period.