I just wanted to see if it was possible. ¯\_(ツ)_/¯
It's a 5x5 switch pcb (100mm x 100mm) that can be connected up to 3 times to make a 25/50/75 - 3 ortholinear qmk firmware keyboard. I decided 72 keys was way too much so I made the 47 version and reimagined my keymappings. So far so good, but I type at like 40wps.
Here's some tips: don't use fritzing if you are going to print using seeed (a pcb printing service). As of 2018-11-04 fritzings gerber exports don't work with their service.
I ended up using easyeda, it even has a web interface if you're lazy. Or a linux client if you're not.
I designed one 100mm x 100mm pcb, you connect up to 3 of them by the dots on the sides, and the rows. This way you can save money and prevent extra pcbs since most places have a minimum pcb amount.
I missed two connections on my original design below. Oops. Didn't matter.