Oliver Unger focused on backend development and embedded systems during April 2025, contributing a targeted bug fix to the evcc-io/evcc repository. He addressed an issue in the Loadpoint module where the PV timer logic could be bypassed, leading to unstable charging behavior under fluctuating solar conditions. By implementing a timer reset after elapse, Oliver ensured that timer durations were properly enforced, preventing immediate toggling of the charger and improving the reliability of solar charging. Working primarily with Go, he enhanced the system’s stability and user experience, demonstrating a thoughtful approach to maintaining robust embedded backend logic in production environments.