In the terminal, run
git clone https://github.com/bmaltais/kohya_ss.git
cd kohya_ss
# Patch these files into top level/root project folder
# Then run the next command
bash ./macos.sh
During the accelerate config screen after running the script answer "This machine", "None", "No" for the remaining questions.
Apologies, this is now out dated. There is a setup.sh that you should run in the main repo that is better than this script. https://github.com/bmaltais/kohya_ss