During April 2026, contributed to the evcc-io/evcc repository by implementing the coarsecurrent capability for the Tessie vehicle integration. This work introduced a new feature enabling coarse current control within the Tessie vehicle definition, supporting more flexible energy management scenarios. The implementation focused on robust configuration management using YAML, ensuring that the new feature was seamlessly integrated and traceable through clear commit history linked to issue #29442. No major bugs were addressed during this period, as efforts centered on feature delivery and maintaining integration reliability. The work demonstrated proficiency in YAML and configuration management within a collaborative development environment.