anchor.diff:        internal = true;
         type = types.listOf types.lines;
         default = [];
  -      description = ''
  -        Text to preseed the desktop configuration that <literal>nixos-generate-config</literal>
  -        saves to <literal>/etc/nixos/configuration.nix</literal>.
  +      description = lib.mdDoc ''
  +        Text to preseed the desktop configuration that `nixos-generate-config`
  +        saves to `/etc/nixos/configuration.nix`.
   
           This is an internal option. No backward compatibility is guaranteed.
           Use at your own risk!
   
           Note that this string gets spliced into a Perl script. The perl
  -        variable <literal>$bootLoaderConfig</literal> can be used to
  +        variable `$bootLoaderConfig` can be used to
           splice in the boot loader configuration.
         '';
       };
  
positive.code:     internal = true;
      type = types.bool;
      default = false;
      description = ''
        Disable nixos-rebuild, nixos-generate-config, nixos-installer
        and other NixOS tools. This is useful to shrink embedded,
        read-only systems which are not expected to be rebuild or
  
negative.code:     configuration = mkOption {
        internal = true;
        type = types.str;
        description = lib.mdDoc ''
          The NixOS module that `nixos-generate-config`
          saves to `/etc/nixos/configuration.nix`.
  
          This is an internal option. No backward compatibility is guaranteed.
          Use at your own risk!
  
          Note that this string gets spliced into a Perl script. The perl
          variable `$bootLoaderConfig` can be used to
          splice in the boot loader configuration.
        '';
      };
  