During July 2025, Alex Bieswanger enhanced the Zewotherm Lambda integration within the evcc-io/evcc repository, focusing on improving energy accounting accuracy and deployment flexibility. He introduced a polarity parameter to handle negative excess energy values, adjusting the scaling logic to support more precise data processing across diverse Lambda deployments. Additionally, Alex made the integration port configurable, replacing the previously hardcoded value to simplify network configuration and onboarding. His work demonstrated practical application of Go, configuration management, and Modbus protocol expertise. The depth of these changes improved interoperability and reliability for Lambda-based charger integrations without addressing major bug fixes this period.