During January 2026, this developer implemented a domain DNS configuration for misa.is-a.dev within the is-a-dev/register repository, focusing on streamlining domain onboarding and DNS resolution. The work involved specifying explicit domain ownership and establishing a CNAME-based DNS path, which reduces manual intervention for custom domain routing. Leveraging skills in DNS configuration, domain management, and JSON, the developer ensured that the new domain could be resolved efficiently and prepared the changes for deployment to both staging and production environments. This contribution supports product readiness for custom domains by automating key aspects of the onboarding process and improving operational traceability.