anchor.diff:        example = "nginx";
         type = types.str;
         description = ''
  -        Name of the config adapter to use. Not applicable to Caddy v1.
  +        Name of the config adapter to use.
           See https://caddyserver.com/docs/config-adapters for the full list.
         '';
       };
  
positive.code:     package = mkOption {
        default = pkgs.caddy;
        defaultText = "pkgs.caddy";
        example = "pkgs.caddy1";
        type = types.package;
        description = ''
          Caddy package to use.
          To use Caddy v1 (obsolete), set this to <literal>pkgs.caddy1</literal>.
        '';
      };
    };
  
negative.code:   cfg = config.services.caddy;
    configFile = pkgs.writeText "Caddyfile" cfg.config;
  
    tlsConfig = {
      apps.tls.automation.policies = [{
        issuer = {
  