Worked on the rabbitmq/rabbitmq-server repository to deliver a new internal authentication backend shorthand called 'internal_loopback', focusing on enhancing configuration management and backend development using Erlang. This feature introduced a more precise and maintainable approach to configuring internal authentication, aligning configuration handling across both the core server and rabbitmq_web_dispatch schemas. By enabling cross-schema consistency, the work reduced the risk of misconfiguration and established a foundation for future improvements to authentication backends. The technical approach emphasized maintainability and configurability, ensuring that future enhancements can be integrated smoothly while supporting robust backend development practices within the Erlang ecosystem.