Developed a JSON-driven User Domain Configuration feature for the is-a-dev/register repository, enabling per-user domain settings through a centralized configuration file. This approach allowed domain parameters such as username and GitHub Pages CNAME to be managed via a single JSON file, reducing manual setup and supporting scalable onboarding for new users. The work focused on configuration management and web development, leveraging JSON for structured data and integrating with Git versioning workflows. By streamlining domain configuration and lowering operational overhead, the solution improved deployment readiness and maintainability, while laying the foundation for a repeatable, config-first process in user domain management.