I think I found the QMK bin file

[mattbatt]

I'm new to this whole wild world of QMK/Via/Vial and it seems like I started out with a trouble maker the GMK26.
I ran across this site in what Google translate is calling "simplified Chinese" http://www.zuoya.top/qdxz
I found a JSON file for the GMK26 and a zip file that contains a .doc, an exe, an a .bin file.
Is the QMK firmware you have been looking for?
ZUOYA+++GMK26++QMK更新固件方法.zip

[humanplayer2]

Thank you for pointing it out, but alas, no, it's not QMK source code. That would be something like this that can be edited, then compiled and installed on the keyboard.

[mattbatt]

Darn.