This is a software configuration tool, mintsources, allows the user to adjust sofware repositories, select a mirror, include PPAs and do package management tasks.
Get source code
git clone https://github.com/linuxmint/mintsources
cd mintsources
Build
dpkg-buildpackage --no-sign
Install
cd ..
sudo dpkg -i mintsources*.deb
Please use Launchpad to translate Mintsources: https://translations.launchpad.net/linuxmint/latest/.