The first thing on the page is the book they sell!
Effective marketing, since the first thing I thought was "$20? Unusual white elephant gift, I may have to get this"
If you're interested the link to the other related site has more step by step instructions: https://www.foldnfly.com/#/1-1-1-1-1-1-1-1-2-1
alt Hacker News
Effective marketing, since the first thing I thought was "$20? Unusual white elephant gift, I may have to get this"
If you're interested the link to the other related site has more step by step instructions: https://www.foldnfly.com/#/1-1-1-1-1-1-1-1-2-1