These posts look nice but please don't put "Show HN" on reading material. If we allowed that, every submission would be a Show HN. The rules are here: https://news.ycombinator.com/showhn.html.
Point noted. I didn't realize that 'Show HN' posts weren't meant to tailor guides / reading material. I won't tag the guides as 'Show HN' going forward then - thanks.