Probably my favorite thing about the author's posts is that it's all handwritten, vanilla code - as far as I can tell. It seems like all the HTML, CSS, and JS are just plain, standard, universal code. It's one of the few "advanced" sites that just works on an old iPhone 7, for example. So many modern sites that use modern frameworks just don't work anymore.

Also just a huge fan of using the existing infrastructure of browsers - even older ones - in effective ways. Browsers have been quite capable for awhile now.