Developed and delivered a new subdomain domain management configuration for the is-a-dev/register repository, focusing on the onboarding and governance of the yashar subdomain. The work centered on implementing a JSON-driven configuration file that explicitly mapped subdomain ownership to its associated URL, streamlining domain management processes and supporting automated routing. By leveraging JSON and applying disciplined version control practices, the solution reduced onboarding time and improved security by clarifying endpoint ownership. No major bugs were reported during the period, reflecting careful implementation. This contribution enhanced the repository’s readiness for broader subdomain onboarding and demonstrated effective domain management and configuration skills.