Worked on the is-a-dev/register repository to implement branded domain hosting and DNS configuration for the buiuyenlab domain. Delivered a feature that automated custom domain verification by defining DNS records in JSON, specifically adding a TXT record for verification and a CNAME record to route traffic to GitHub Pages. Focused on domain management and web development, the approach streamlined deployment and established a repeatable process for future domain setups. No major bugs were addressed during this period, maintaining system stability. The work demonstrated proficiency in DNS automation, JSON-based configuration, and Git-based workflows to enhance deployment efficiency and domain credibility.