During May 2025, John Legg developed and integrated a Victron VRM solar forecast tariff template for the evcc-io/evcc repository. He designed and implemented a solution to fetch and process two-day solar forecast data from the Victron VRM API, enabling more accurate solar generation predictions and improved planning for tariff-aware charging decisions. His work focused on API integration and configuration using yaml, ensuring seamless data flow and template functionality within the existing system. While the scope was limited to a single feature and did not include bug fixes, the contribution demonstrated depth in data processing and domain-specific configuration skills.