How I Built 7 AI Systems to Run a Social Media App — Architecture Deep Dive

When I started building Qioiper, I had one architectural constraint that shaped everything: the platform could not optimize for screen time. This sounds simple. It isn't. Every major social platform — Instagram, TikTok, Twitter — runs on engagement-maximization algorithms. The entire infrastructure of modern social media is built to answer one question: how do we keep users on longer? Building against this required not one AI system, but seven. Each one handles a specific part of the problem....