During December 2025, work focused on delivering Custom Domain Support for User Sites within the is-a-dev/register repository. This feature enabled users to configure and verify their own domains, enhancing site branding and paving the way for improved SEO and enterprise onboarding. The implementation centered on a JSON-based configuration workflow, allowing users to manage domain records for verification and routing directly through configuration files. Leveraging skills in configuration management, domain management, and web development, the developer integrated this functionality without introducing major bugs. The work established a foundation for scalable domain handling and streamlined user experience in domain configuration processes.