# testing
    deb http://ftp.fr.debian.org/debian/ testing main contrib non-free
    deb http://security.debian.org/ testing/updates main contrib non-free
    # unstable
    deb http://ftp.fr.debian.org/debian/ unstable main contrib non-free
    # experimental
    deb http://ftp.fr.debian.org/debian/ experimental main contrib non-free

    # testing-src
    deb-src http://ftp.fr.debian.org/debian/ testing main contrib non-free
    # unstable-src
    deb-src http://ftp.fr.debian.org/debian/ unstable main contrib non-free
    # experimental-src
    deb-src http://ftp.fr.debian.org/debian/ experimental main contrib non-free