They're for an entry level audience, but not just for aspiring SWEs. I've been a professional developer for a while, yet I'm part of the entry level audience for XDP programs[1] or for the ML bias-variance tradeoff [2]. Her posts are "entry-level" because she's so good at making complex stuff easily understandable for beginners of all kinds.
I recently came across her "Perf zine" [1] and immediately bookmarked it because I enjoyed it so much. It may target entry-level engineers, but it's still a joy to read for anyone.
