Developed a domain configuration management feature for the is-a-dev/register repository, introducing a JSON-driven approach to automate DNS A record setup and Vercel domain verification through TXT records. Leveraging configuration management and data serialization skills, the work centered on creating arib.json and _vercel.arib.json files to streamline domain onboarding and reduce manual configuration steps. This approach minimized configuration drift and improved the reliability of domain verification during deployments. The implementation utilized JSON for structured configuration, incorporated DNS concepts, and integrated with Git-based automation workflows, resulting in a more efficient and maintainable process for provisioning and verifying new domain environments.