Repositories of config dot-files (config.files, get it?) and install scripts.
You will need curl in order to run the setup/update scripts:
sudo apt-get install -y curl
Now on to the system specific setup/update instructions:
curl https://raw.githubusercontent.com/test-IO/config.files/master/raspberry_setup.sh | bash
curl https://raw.githubusercontent.com/test-IO/config.files/master/raspberry_update.sh | bash