Worked on the is-a-dev/register repository to enhance domain readiness and verification workflows for GitHub Pages deployments. Delivered a custom CNAME configuration for the jin.is-a.dev domain, pointing directly to the portfolio site and removing unnecessary path-based CNAMEs to simplify DNS management. Introduced a JSON-based verification file to streamline the GitHub Pages challenge process, accelerating SSL and domain verification. Focused on configuration management and domain management using GitHub Pages and JSON, with all changes designed to improve onboarding speed and branding consistency. Maintained clear, traceable commit messages, and ensured that all updates were additive improvements without introducing customer-reported defects.