Worked on domain management improvements in the hackclub/dns repository, focusing on DNS configuration for helvetica and helvitica subdomains. Implemented a new CNAME record for helvitica.hackclub.com and corrected a contact entry typo to ensure reliable DNS resolution for helvetica.hackclub.com. Used YAML for configuration management and DNS management tasks, updating both the proof of concept and documentation to reflect the new DNS setup. Collaborated cross-functionally, with changes delivered through two traceable commits and associated pull requests. The work enhanced onboarding and ongoing maintenance by clarifying DNS records and reducing the risk of misrouting or support issues in the future.