The paper introduces a novel approach to operating semiconductor quantum processors using hopping spins, which are single spins that can be efficiently controlled between quantum dots with site-dependent spin quantization axes. This method allows for high-fidelity single-qubit and two-qubit gates, achieving gate fidelities of 99.97%, 99.992%, and 99.3%, respectively. The authors demonstrate that this hopping-based control can be achieved using discrete digital pulses, reducing power dissipation and improving control precision compared to resonant control methods. They also show that the hopping spins can be used to map the coherence of a 10-quantum dot system, providing insights into the behavior of large and high-connectivity quantum dot arrays. The results suggest that sparse occupation of quantum dots could be a promising architecture for dense qubit arrays, potentially enabling efficient and high-connectivity qubit registers.The paper introduces a novel approach to operating semiconductor quantum processors using hopping spins, which are single spins that can be efficiently controlled between quantum dots with site-dependent spin quantization axes. This method allows for high-fidelity single-qubit and two-qubit gates, achieving gate fidelities of 99.97%, 99.992%, and 99.3%, respectively. The authors demonstrate that this hopping-based control can be achieved using discrete digital pulses, reducing power dissipation and improving control precision compared to resonant control methods. They also show that the hopping spins can be used to map the coherence of a 10-quantum dot system, providing insights into the behavior of large and high-connectivity quantum dot arrays. The results suggest that sparse occupation of quantum dots could be a promising architecture for dense qubit arrays, potentially enabling efficient and high-connectivity qubit registers.