Mario Perrotta delivered a DNS-based external service verification feature for the pagopa/io-wallet repository, focusing on automating the validation of cbor and proximity namespaces for Maven integration. He implemented DNS TXT records using Infrastructure as Code principles with HCL, streamlining the onboarding process by reducing manual verification steps and enhancing security for external service connections. His work demonstrated practical application of DNS management and DevOps practices, ensuring repository-level traceability through ticket-driven development. While the scope was focused, Mario’s contribution addressed a clear operational need, providing a robust, automated verification path and supporting cross-team collaboration without introducing new bugs.