anchor.diff:  { lib, buildGoModule, fetchFromGitHub, nixosTests }:
   let
  -  version = "2.4.6";
  +  version = "2.5.0";
     dist = fetchFromGitHub {
       owner = "caddyserver";
       repo = "dist";
  
positive.code:     homepage = "https://caddyserver.com";
      description = "Fast, cross-platform HTTP/2 web server with automatic HTTPS";
      license = licenses.asl20;
      maintainers = with maintainers; [ Br1ght0ne ];
    };
  }
  
negative.code:     owner = "caddyserver";
      repo = "caddy";
      rev = "v${version}";
      sha256 = "sha256-V9iIz/93n6EBJZ9v3MDKD6FivtplRFN9a/e0o7YX0/w=";
    };
  
    vendorSha256 = "sha256-xu3klc9yb4Ws8fvXRV286IDhi/zQVN1PKCiFKb8VJBo=";
  
    postInstall = ''
      install -Dm644 ${dist}/init/caddy.service ${dist}/init/caddy-api.service -t $out/lib/systemd/system
  