if you want to just change the keymap you can use https://config.qmk.fm/ and upload the ./keymap.json do your changes, and then download and overwrite the keymap.json
once that you can compile with:
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git submodule update
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./cheapino.sh
once it ended to compile, press both buttons boot and reset to set the chip into boot mode, then you should mount the partition... if your computer can autodetect the usb and automount
then the software will flash :)
This is a keyboard firmware based on the tmk_keyboard firmware with some useful features for Atmel AVR and ARM controllers, and more specifically, the OLKB product line, the ErgoDox EZ keyboard, and the Clueboard product line.
The docs are powered by Docsify and hosted on GitHub. They are also viewable offline; see Previewing the Documentation for more details.
You can request changes by making a fork and opening a pull request, or by clicking the "Edit this page" link at the bottom of any page.
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. The OLKB product firmwares are maintained by Jack Humbert, the Ergodox EZ by ZSA Technology Labs, the Clueboard by Zach White, and the Atreus by Phil Hagelberg.
qmk.fm is the official website of QMK, where you can find links to this page, the documentation, and the keyboards supported by QMK.