anchor.diff:    debian = [
       "https://httpredir.debian.org/debian/"
       "https://ftp.debian.org/debian/"
  +    "https://mirrors.edge.kernel.org/debian/"
       "ftp://ftp.de.debian.org/debian/"
       "ftp://ftp.fr.debian.org/debian/"
       "ftp://ftp.nl.debian.org/debian/"
  
positive.code:   ubuntu = [
      "https://nl.archive.ubuntu.com/ubuntu/"
      "https://old-releases.ubuntu.com/ubuntu/"
      "http://de.archive.ubuntu.com/ubuntu/"
      "http://archive.ubuntu.com/ubuntu/"
    ];
  
negative.code:   cpan = [
      "https://cpan.metacpan.org/"
      "https://cpan.perl.org/"
      "https://mirrors.kernel.org/CPAN/"
      "https://backpan.perl.org/"  # for old releases
    ];
  
  