During March, Kestler developed and delivered the YuaMQTT library to the arduino/library-registry repository, expanding MQTT protocol support for IoT developers within the Arduino ecosystem. The work focused on seamless integration and traceable commits, ensuring that the new library could be easily adopted and maintained by the community. Kestler applied expertise in IoT development and library management, leveraging plaintext documentation and repository management best practices to facilitate onboarding and maintain registry stability. No major bugs or regressions were reported, reflecting careful attention to integration quality. This contribution enhanced the registry’s capabilities and provided developers with more flexible MQTT connectivity options.