How Meta Built Threads to Support 100 Million Signups in 5 Days

Meta's Threads platform achieved a rapid growth of 100 million signups by leveraging existing, robust infrastructures like ZippyDB and Async. ZippyDB, a distributed key-value store, ensured scalability and strong consistency, while Async, a serverless computing engine, handled trillions of background tasks to support seamless user experiences. These systems, honed by Meta's experience with Facebook, Instagram, and WhatsApp, allowed Threads to scale effortlessly without the need for bespoke solutions.