Developed a JSON-configurable User Domain feature for the is-a-dev/register repository, enabling streamlined domain owner management and CNAME mapping through a new mrfool.json configuration file. Focused on configuration management and data structuring, the work included refining the data model by renaming the 'record' field to 'records' to ensure consistency and prevent downstream parsing issues. Leveraging JSON for data structure management, the implementation supports reproducible, config-driven domain provisioning and reduces manual onboarding steps. This approach lays the foundation for scalable domain onboarding, demonstrating careful attention to data model clarity and commit hygiene while emphasizing maintainability and automation in domain configuration workflows.