Hand Drawn QR Codes

I hand drew this on a whiteboard. It was a lot more work than I anticipated.

http://lars.nocrew.org/tmp/qr.png

From the update: "Why are QR Codes with capital letters smaller than QR codes with lower-case letters?" https://shkspr.mobi/blog/2025/02/why-are-qr-codes-with-capit... (https://news.ycombinator.com/item?id=43149077)