C12 has partnered with QC Design to leverage the Plaquette design-automation platform in developing fault-tolerant quantum computing architectures. This integration enables C12 to simulate and optimize its carbon nanotube spin-qubit architecture, accounting for over 20 hardware imperfections under realistic noise models. The collaboration aims to benchmark quantum computing performance, with a focus on enhancing fault tolerance. By utilizing Plaquette, C12 can refine its unique architecture to mitigate errors and improve overall system reliability. This development is crucial for advancing quantum computing capabilities, as fault-tolerant architectures are essential for large-scale, practical applications. The ability to simulate and optimize under realistic conditions allows C12 to refine its design, ultimately contributing to the development of more robust quantum systems1. This matters to practitioners as it brings the industry closer to overcoming quantum computing's reliability challenges, paving the way for widespread adoption.