Developed a JSON-driven subdomain configuration for the LibreSpark/LibreDomains repository, enabling automated DNS record management and ownership traceability for the h5ii subdomain under ciao.su. The work involved updating the configuration to include detailed owner information and DNS records, as well as revising the owner field to improve governance and reduce manual errors. Leveraging skills in configuration management, domain management, and Git versioning, the developer implemented these changes through two targeted commits. This approach streamlined subdomain onboarding, enhanced DNS automation, and supported more reliable configuration reviews, contributing to improved operational efficiency within the domain management workflow.