Developed a JSON-based subdomain registration configuration for the is-a-dev/register repository, enabling streamlined onboarding for neymarsabin.is-a.dev. The work centered on designing a dedicated configuration file that defines subdomain ownership and DNS records, allowing for config-driven management and reducing the need for manual DNS setup. Leveraging skills in configuration management and domain registration, the implementation established full commit traceability for reproducibility and auditing. By introducing this approach, the developer laid the foundation for scalable, multi-tenant subdomain management and improved deployment workflows. The project utilized JSON and version control to ensure maintainability and transparency throughout the configuration process.