Oscar Portillo focused on stability and reliability improvements for the lhr-solar/Controls repository, addressing critical issues in display and gear state handling within the control module. Working primarily in C and leveraging embedded systems expertise, Oscar fixed display logic for array, motor, and off switches to ensure accurate state representation. He also modified the initialization process so the gear display defaults to neutral, preventing stale or unintended activations on startup. Additionally, he refined the contactor disable behavior to enhance safety during state transitions. The work was consolidated into a single, maintainable commit, reflecting a targeted and in-depth approach to bug resolution.