This is a keyboard firmware based on the tmk_keyboard firmware with some useful features for Atmel AVR controllers, and more specifically, the OLKB product line, the ErgoDox EZ keyboard, and the Clueboard product line.
For an easy-to-read version of this document and the repository, check out http://qmk.fm. Nicely formatted keyboard and keymap listings are also available there, along with the ability to download .hex files instead of having to setup a build environment and compile them.
The project also includes community support for lots of other keyboards.
QMK is developed and maintained by Jack Humbert of OLKB with contributions from the community, and of course, Hasu. This repo used to be a fork of TMK, and we are incredibly grateful for his founding contributions to the firmware. We've had to break the fork due to purely technical reasons - it simply became too different over time, and we've had to start refactoring some of the basic bits and pieces. We are huge fans of TMK and Hasu :)
This documentation is edited and maintained by Erez Zukerman of ErgoDox EZ. If you spot any typos or inaccuracies, please open an issue.
This is not a tiny project. While this is the main readme, there are many other files you might want to consult. Here are some points of interest:
keyboards/<your keyboards's name>/. So for the ErgoDox EZ, it's here; for the Planck, it's here and so on.
quantum_keycodes.his where they're actually defined.