Several<br/>years ago, Peng Ziyun was at the Shanghai ______ of<br/>Music, studying music<br/>and technology. She ______ about sound engineering and wanted to<br/>build something of her own. But she didn’t know how, and she<br/>didn’t have anyone to teach her.<br/>An Internet ______ led her to Xinchejian, China’s first formal<br/>“hackerspace,” a community-run workshop where people tinker with everything from art projects to robots.