Daniele worked on stabilizing MAC address handling in the juspay/diesel repository, focusing on MacAddr8 support to improve data accuracy and type safety across the Diesel ORM and PostgreSQL migrations. Using Rust and SQL, Daniele corrected unit-test assertions and updated test coverage to ensure proper MAC address conversions, reducing the risk of migration drift and data inconsistencies. The work extended Diesel CLI functionality to recognize the macaddr8 type and aligned schema definitions for PostgreSQL version 8. This effort demonstrated careful attention to cross-stack reliability, schema management, and testing discipline, resulting in more robust database migrations and safer production releases.