Worked on the is-a-dev/register repository to deliver a new JSON-based user configuration system supporting username and CNAME-based domain mapping. Focused on data configuration and file management, the approach introduced a file-driven setup that enables per-user settings and scalable domain mappings, streamlining onboarding for multi-tenant environments. The implementation relied on JSON to ensure reproducible deployments and maintainable configuration changes, with all updates tracked through a clear commit history. No major bugs were addressed during this period, as the primary effort centered on building a robust, maintainable feature that lays the groundwork for future tenant-specific configuration enhancements and faster user onboarding.