Meaghan Tobin / New York Times:Hangzhou, home to DeepSeek and Alibaba, has become a hub for Chinese AI startups, with the suburb Liangzhu emerging as a hotspot for coders in their 20s and 30s — As China vies with Silicon Valley for primacy, Hangzhou, home to DeepSeek and Alibaba, is where its aspiring tech titans mingle and share ideas.