diff --git a/modules/hardware/hydraCache.nix b/modules/hardware/hydraCache.nix
index 2924d69..a5c40de 100644
--- a/modules/hardware/hydraCache.nix
+++ b/modules/hardware/hydraCache.nix
@@ -7,6 +7,9 @@
       extra-trusted-public-keys = [
         "hades-builder:AFdPgi6Qq/yKqc2V2imgzMikEkVEFCrDaHyAmOJ3MII="
       ];
+      extra-substituters = [
+        "https://cache.home.opel-online.de"
+      ];
       extra-trusted-substituters = [
         "https://cache.home.opel-online.de"
       ];
diff --git a/modules/services/dmz/hydra.nix b/modules/services/dmz/hydra.nix
index 59f6533..0905fb7 100644
--- a/modules/services/dmz/hydra.nix
+++ b/modules/services/dmz/hydra.nix
@@ -33,7 +33,7 @@
           "cache.home.opel-online.de" = {
             useACMEHost = "home.opel-online.de";
             forceSSL = true;
-            locations."/".proxyPass = "http://localhost:5001";
+            locations."/".proxyPass = "http://${config.services.nix-serve.bindAddress}:${toString config.services.nix-serve.port}";
           };
         };
       };
diff --git a/modules/wm/kde/default.nix b/modules/wm/kde/default.nix
index 7a50f8c..3ec4775 100644
--- a/modules/wm/kde/default.nix
+++ b/modules/wm/kde/default.nix
@@ -16,9 +16,9 @@
 
     environment.systemPackages = with pkgs; [
       flatpak
-      rocmPackages.clr.icd
-      rocmPackages.clr
-      clinfo
+#      rocmPackages.clr.icd
+#      rocmPackages.clr
+#      clinfo
       libsForQt5.discover
       maliit-keyboard
     ];