anchor.diff:          example = "uninstall";
           description = ''
             This option manages what happens to formulae installed by Homebrew, that aren't present in
  -          the Brewfile generated by this module, during <command>nix-darwin</command> activation.
  +          the Brewfile generated by this module, during <command>nix-darwin</command> system
  +          activation.
   
             When set to <literal>"none"</literal> (the default), formulae not present in the generated
             Brewfile are left installed.
   
             When set to <literal>"uninstall"</literal>, <command>nix-darwin</command> invokes
             <command>brew bundle [install]</command> with the <command>--cleanup</command> flag. This
  -          uninstalls all formulae not listed in generate Brewfile, i.e.,
  +          uninstalls all formulae not listed in generated Brewfile, i.e.,
             <command>brew uninstall</command> is run for those formulae.
   
             When set to <literal>"zap"</literal>, <command>nix-darwin</command> invokes
  
positive.code:           require_sha = true;
          }
        '';
        description = "Arguments to apply to all <option>homebrew.casks</option>.";
      };
  
      brews = mkOption {
  
negative.code:         example = "zh-TW";
        };
        require_sha = mkNullOrBoolOption {
          description = ''
            Whether to require cask(s) to have a checksum.
  
            Homebrew's default is <literal>false</literal>.
          '';
        };
        no_quarantine = mkNullOrBoolOption {
          description = "Whether to disable quarantining of downloads.";
  