The 2026 SDG Open Hack @ Tsinghua Universitywas held from September 17 to 19 at Tsinghua Shenzhen International Graduate School (Tsinghua SIGS), bringing together 40 students from Tsinghua SIGS and The Chinese University of Hong Kong (CUHK) for a three-day innovation challenge focused on the United Nations Sustainable Development Goals (SDGs).The three-day event was co-hosted by Tsinghua SIGS and CUHK and organized by Tsinghua x-lab. Combining innovation practice with learning, the event aimed t