-3. Set up a build environment as per https://www.pjrc.com/teensy/gcc.html
-4. Copy keymaps/keymap_default.c into keymaps/your_keymap_name.c
+3. Set up a build environment as per [pjrc.com/teensy/gcc.html](https://www.pjrc.com/teensy/gcc.html)
+ - Using a Mac and have homebrew? just run `brew tap osx-cross/avr && brew install avr-libc`
+4. Copy `keymaps/keymap_default.c` into `keymaps/keymap_your_name.c` (for example, `keymaps/keymap_german.c`)