Within a span of just four months, Manus embarked on a tumultuous journey, experiencing global fame, securing funding, and then becoming mired in controversy over deleted posts, staff layoffs, and a relocation to Singapore. Critics accused the company of exploiting Chinese engineers to develop products, only to swiftly lay them off and flee. Amidst this uproar, co-founder Ji Yichao penned a lengthy blog post in the wee hours of the morning, delving into the core of the products and technology, and publicly sharing for the first time the invaluable lessons garnered from this ordeal.