Developed a JSON-driven subdomain DNS configuration system for the is-a-dev/register repository, focusing on automating DNS provisioning and ownership tracking. The work introduced a configuration management approach that allows subdomain owners and CNAME records to be specified directly in JSON, reducing manual intervention and supporting scalable domain management. By implementing this feature, the developer established a foundation for automated subdomain onboarding, enabling easier mapping of ownership and streamlined DNS updates. The solution leveraged skills in configuration management and domain management, with all logic and data structures expressed in JSON, and laid the groundwork for future extensibility in subdomain registration workflows.