Worked on the is-a-dev/register repository to enhance email deliverability and streamline data management. Delivered a Resend Email Service by integrating DNS configuration, specifically implementing DMARC and SPF records to support reliable email resends. Addressed repository hygiene by removing an unused cola.json subdomain entry, which reduced configuration clutter and simplified ongoing maintenance. Focused on backend development and data management, utilizing JSON for configuration updates and ensuring that email service integration met operational requirements. These targeted improvements reduced bounce and retry risks, improved onboarding for future contributors, and made the codebase easier to maintain without introducing new bugs during the development period.