Clone the project to a .bash folder in your home directory:
mkdir ~/.bash
cd ~/.bash
git clone https://github.com/skyuuka/bashrc.git
Edit your ~/.bash_profile or ~/.profile and add the following to the top:
export BASHRC_EXTENSION=~/.bash/bashrc
source "${BASHRC_EXTENSION}/main.sh"
Clone the project to a ANY folder:
git clone https://github.com/skyuuka/bashrc.git foo
cd foo
source test.sh