Replace custom xcaddy with the new one in nixpkgs

caddy/custom-caddy.nix

@@ -1,38 +0,0 @@
-# copied from here https://github.com/jdheyburn/nixos-configs/blob/932fa64615db39979694c761174ea3b83d4b5e94/modules/caddy/custom-caddy.nix
-# https://mdleom.com/blog/2021/12/27/caddy-plugins-nixos/#xcaddy
-
-{ pkgs, plugins, stdenv, lib, ... }:
-
-stdenv.mkDerivation rec {
-  pname = "caddy";
-  # https://github.com/NixOS/nixpkgs/issues/113520
-  version = "2.8.4";
-  dontUnpack = true;
-
-  nativeBuildInputs = with pkgs; [ git go xcaddy ];
-
-  configurePhase = ''
-    export GOCACHE=$TMPDIR/go-cache
-    export GOPATH="$TMPDIR/go"
-  '';
-
-  buildPhase =
-    let
-      pluginArgs =
-        lib.concatMapStringsSep " " (plugin: "--with ${plugin}") plugins;
-    in
-    ''
-      runHook preBuild
-      ${pkgs.xcaddy}/bin/xcaddy build "v${version}" ${pluginArgs}
-      runHook postBuild
-    '';
-
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $out/bin
-    mv caddy $out/bin
-    runHook postInstall
-  '';
-
-  meta.mainProgram = "caddy";
-}

caddy/default.nix

@@ -2,6 +2,7 @@
 , pkgs
 , inputs
 , settings
+, lib
 , ...
 }:
 let
@@ -36,9 +37,11 @@ in
     enable = true;
     email = "ssl@catnip.ee";
 
-    package = (pkgs.callPackage ./custom-caddy.nix {
-      plugins = [ "github.com/caddy-dns/cloudflare" ];
-    });
+    package = pkgs.caddy.withPlugins {
+      # https://github.com/NixOS/nixpkgs/pull/358586#issuecomment-2564016652
+      plugins = [ "github.com/caddy-dns/cloudflare@v0.0.0-20240703190432-89f16b99c18e" ];
+      hash = "sha256-JoujVXRXjKUam1Ej3/zKVvF0nX97dUizmISjy3M3Kr8=";
+    };
 
     globalConfig = ''
       servers {