Xplanet on Mac https://blog.rajab.us/xplanet/
To install:
cd ~
git clone https://github.com/blogabe/Xplanet.git ~/.xplanet
cd ~/.xplanet/config/scripts
./xplanet.sh install
./xplanet.sh setup
To update (this will overwrite whatever changes you have made):
git -C "$HOME/.xplanet" pull origin master'