Using

cd /opt
git clone https://github.com/norox/zsh-nox.git
cd zsh-nox
git submodule update --init --recursive
cd ~
ln -s /opt/zsh-nox/zshrc ~/.zshrc

Override stuff

Put any overrides in ~/.zshnox it can be any option supported by zsh, oh-my-zsh and zsh-nox (read zsh-nox/zshrc)