part 2 is https://www.techbuzzchina.com/bytedance/kelly-nan-zhang-bytedance-china-ceo-and-creator-of-douyin-tiktok-how-we-created-a-product-with-a-billion-views

part 2 is https://www.techbuzzchina.com/bytedance/kelly-nan-zhang-bytedance-china-ceo-and-creator-of-douyin-tiktok-how-we-created-a-product-with-a-billion-views-a-day-in-18-months-part-2 https://www.techbuzzchina.com/bytedance/kelly-nan-zhang-byte...