They're doing about 2500 requests per second. That just seems like an incredibly complicated setup (granted -- lots of redundancy, but still).
What I'm looking for are real war stories of scaling serverless up to 2500 - 5000 requests per second.
A few searches online only gives me theoretical tests, benchmarks and demos, but no actual apps in production. I'm looking for someone who actually does 2.5k+ requests per second on a serverless setup in production for a real app.