Worked on the bramstroker/homeassistant-powercalc repository to enhance device reliability within the Zigbee2MQTT integration by addressing a specific issue with MQTT device aliasing. Focused on device configuration, the developer identified and resolved a bug where trailing characters in device aliases caused misrouting of MQTT messages. The solution involved updating the model.json file using JSON to ensure accurate device identification and alignment with Zigbee2MQTT documentation. This targeted fix improved automation reliability and user experience by preventing message delivery errors. The work demonstrated attention to maintainability and traceability, with all changes consolidated in a single, well-documented commit for future reference.