alright let me be real with you for a second
i've been building production systems for a few years now, mostly backend with node and nestjs, react and next on top, and the one thing that always drove me absolutely crazy was how performance content online just doesn't respect your time
you google "how to optimize react rendering" and you get a medium article with 47 claps that shows you useMemo on a counter app
you google "how to optimize node performance" and you get a 2019 blog post that tells you to use async await
neither of them has real numbers, neither of them shows you how to actually FIND the problem before you start fixing things, and absolutely none of them connect the frontend and backend story together
