Developed a domain-based subdomain architecture for chat, notes, media, and clips services within the is-a-dev/register repository, focusing on backend development and domain management. The work introduced dedicated subdomains to streamline service routing and improve scalability, enabling clearer traffic flow and fault isolation across core services. Leveraging JSON for configuration and data structuring, the implementation established well-defined domain boundaries that support maintainable deployment pipelines and facilitate faster onboarding of new features. No major bugs were addressed during this period, as the primary emphasis was on architectural improvements and laying a scalable foundation for future enhancements and clearer service ownership.