Worked on DNS configuration improvements for the is-a-dev/register repository, focusing on enhancing domain resolution reliability and operational control. Implemented a direct IP mapping by replacing a CNAME record with an A record for the www.a1x5h04 domain, reducing dependency on CNAME chaining. Introduced a JSON-based configuration file to manage DNS records and owner metadata, improving traceability and maintainability of domain management processes. Utilized skills in DNS management, configuration management, and domain management, with JSON as the primary language for configuration. The work emphasized explicit commit history, enabling better change tracking and supporting more robust and transparent DNS operations for the project.