anchor.diff:    options = {
   
       environment.etc = mkOption {
  -      type = types.loaOf types.optionSet;
         default = {};
         example = literalExample ''
           { example-configuration-file =
  
positive.code:               in mkDefault (pkgs.writeText name' config.text));
            };
  
          });
  
      };
  
  
negative.code:         Set of files that have to be linked in <filename>/etc</filename>.
        '';
  
        type = with types; loaOf (submodule (
          { name, config, ... }:
          { options = {
  
              enable = mkOption {
  