echo 'deb http://us.archive.ubuntu.com/ubuntu xenial main restricted universe multiverse' | sudo tee /etc/apt/sources.list.d/xenial.list > /dev/null;
echo 'deb http://us.archive.ubuntu.com/ubuntu xenial-backports main restricted universe multiverse' | sudo tee -a /etc/apt/sources.list.d/xenial.list > /dev/null;
echo 'deb http://us.archive.ubuntu.com/ubuntu xenial-security main restricted universe multiverse' | sudo tee -a /etc/apt/sources.list.d/xenial.list > /dev/null;
echo 'deb http://us.archive.ubuntu.com/ubuntu xenial-updates main restricted universe multiverse' | sudo tee -a /etc/apt/sources.list.d/xenial.list > /dev/null;
echo "deb http://packages.spectrum.im/spectrum2/ xenial main" | sudo tee -a /etc/apt/sources.list;
echo "deb http://swift.im/packages/ubuntu/xenial beta main" | sudo tee -a /etc/apt/sources.list;
echo "deb http://packages.prosody.im/debian $(lsb_release -sc) main" | sudo tee -a /etc/apt/sources.list;