I didn't make this, but came across it and though it felt like the kind of thing HN would appreciate

It's like pocketmod. I've had these for years for making shortcut manuals.

https://pocketmod.com/

I've gotten super into Zine making this year and love this mini-8-pager format. I typically carry them around to share information with others, and get back to a world of print in our digital divide. People really like the bite size knowledge they can fit in a pocket.

I picked up a slightly different format which is double sided and two per piece of paper.

PDF example and Affinity Publisher 2 files: https://limewire.com/d/Vi7Td#q7xsY0HXLY

The hardest parts of formatting these are (a) not making the font too small (b) getting the folds to land in the middle of pages (if you are OCD about that like me)

(edit, added both file types for a few examples)

This is another online zine maker I came across as well which supports markdown / json: https://zeenster.com/ | https://github.com/virgilvox/zine-maker

If you want to mass produce them

- Brother Inkjet Printer

- HFS guillotine paper cutter

- Martin Yale P7200 RapidFold