I wrote this in large part because I love being able to print out zines about my favorite topics ("hey, want to know more about computer networking?! I wrote a small thing you can read about it!!") and give them to people who might not otherwise read about the subject.
Would you mind sharing what you're using to make them? It looks too nice to be scanned paper?
I write them all on a 10 inch Samsung tablet (with an "S pen") in an app called Squid. Writing them on a tablet really helps a lot -- my first zine was on scanned paper, and it was fun (you can see it at http://jvns.ca/strace-zine-unfolded.pdf) but it was hard to edit and the results didn't look nearly as good.
If you use an ipad pro, there's an app called Goodnotes which is quite good for drawing things like this. They both give you vector images so you can scale them up to any resolution.
I will share this with some developers I know... :-)