I haven't used nix, but this primer seems pretty straightforward. Was the learning curve you faced perhaps due to missing or hard-to-find documentation at the time, or something else?
I can relate to the earlier poster because I had the same problem finding all of these rules in one place. I wrote it to be precisely what I wish someone had told me before I got started.
Thank you for the compliment btw.
Yes, this primer would have been very helpful at the time. It's not like it's impossible to learn, but "familiar" it is not.