Developed a JSON-config-driven sub-domain registration feature in the is-a-dev/register repository, enabling automated provisioning of sub-domains with owner username, DNS records, and contact email. Focused on backend development and configuration management, the work introduced a structured siddhartha.json file to capture essential domain ownership and administration details. By adding an owner email field, the implementation supports notifications and streamlined admin contact. This approach established a configuration-driven model that reduces manual setup, improves traceability, and supports scalable onboarding for future sub-domains. The solution leveraged skills in data modeling and domain management, with all changes delivered using JSON as the primary language.