Zoo.dev, a startup developing next-gen CAD products, has made a breakthrough in the field of computer-aided design with the introduction of time-traveling debuggers and custom KCL, a programming language tailored to hardware design. Adam Chalmers, senior engineer at Zoo.dev, presented this innovative technology at Tech Talks ATX with Cloudflare and Jam. The company is changing the CAD landscape by creating their own CAD kernel, allowing core CAD operations to take advantage of modern hardware. A cloud-based tool called the Zoo Modeling App enables users to build CAD designs in real-time, offloading computational workload to powerful cloud-based GPUs. KCL focuses on essential aspects of hardware design, eschewing unnecessary software-centric features. The time-traveling debugger for KCVM records memory snapshots at each step, allowing developers to trace back the state of the program at any point in its execution.