Engineer’s Codex is a newsletter explaining real-world software engineering. Meta’s XFaaS is their serverless platform that “processes trillions of function calls per day on more than 100,000 servers spread across tens of datacenter regions.”1XFaaS is Meta’s internal version of public Function-as-a-Service (FaaS) options, such as AWS Lambda, Google Cloud Functions, and Azure Functions.I was lucky enough to get an early look at the paper they wrote about it.Computer scientists aren’t really the m...