qmk-firmware/keyboards/ergotaco/keymaps/default
..
keymap.c
readme.md
rules.mk

readme.md

This is the default keymap for the ErgoTaco, Make it your own!

Settings

To edit various settings, enable the 1u trackball and whatnot please modify /keyboards/ergotaco/keymaps/default/rules.mk

Ideally you should copy this directory and make your changes there. If you come up with a good layout submit a PR!