diff --git a/spec/koumakyou/jovian.nix b/spec/koumakyou/jovian.nix
index d08aa145..a5754ee1 100644
--- a/spec/koumakyou/jovian.nix
+++ b/spec/koumakyou/jovian.nix
@@ -5,7 +5,7 @@
     jovian = {
       hardware.has.amd.gpu = true;
       steamos.useSteamOSConfig = true;
-      #steamos.enableDefaultCmdlineConfig = false;
+      steamos.enableDefaultCmdlineConfig = false;
 
       steam = {
         enable = true;
@@ -61,6 +61,13 @@
       stateDir = "/nix/persist/decky";
     };
 
-    boot.kernelParams = [ "iomem=relaxed" "amd_pstate=passive" ];
+    boot.kernelParams = [
+      "iomem=relaxed"
+      "amd_pstate=passive"
+    ];
+
+    services.udev.extraRules = ''
+      SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="${pkgs.ryzenadj}/bin/ryzenadj --max-performance"
+    '';
   };
 }