tl;dr:“The goal of this publication is to start from the basics, explain nuances of all the moving layers, and describe this universal recommendation system architecture.”
tl;dr:"FAANG and other top tech companies have independently converged on a common architecture for production grade recommendation systems." This architecture is domain / vertical agnostic and can power all sorts of applications — from e-commerce and feeds to search, notifications, etc... Nikhil starts from the basics, explains nuances and describes this universal architecture.