diff --git a/flake.lock b/flake.lock
index 1efb36a9..d4673270 100644
--- a/flake.lock
+++ b/flake.lock
@@ -229,15 +229,15 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1686592866,
-        "narHash": "sha256-riGg89eWhXJcPNrQGcSwTEEm7CGxWC06oSX44hajeMw=",
-        "owner": "NixOS",
+        "lastModified": 1686806693,
+        "narHash": "sha256-fV02i234CjvgAuJ3fgsqxeB3PjZG1tOSnPON0CdaR2A=",
+        "owner": "CHN-beta",
         "repo": "nixpkgs",
-        "rev": "0eeebd64de89e4163f4d3cf34ffe925a5cf67a05",
+        "rev": "a837e80e8ef20f174b1537e082c84f2ac8ec7473",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
+        "owner": "CHN-beta",
         "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
diff --git a/flake.nix b/flake.nix
index 41861652..90971fd7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,7 @@
 
 	inputs =
 	{
-		nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+		nixpkgs.url = "github:CHN-beta/nixpkgs/nixos-unstable";
 		nixpkgs-stable.url = "github:NixOS/nixpkgs/nixos-23.05";
 		flake-utils.url = "github:numtide/flake-utils";
 		flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
diff --git a/modules/boot/chn-PC.nix b/modules/boot/chn-PC.nix
index 1d784087..a397dbb2 100644
--- a/modules/boot/chn-PC.nix
+++ b/modules/boot/chn-PC.nix
@@ -4,19 +4,6 @@
 	{
 		boot =
 		{
-			# kernelPackages = ( inputs.inputs.nixpkgs.lib.nixosSystem
-			# {
-			# 	system = "x86_64-linux";
-			# 	modules =
-			# 	[{
-			# 		nixpkgs =
-			# 		{
-			# 			hostPlatform = { system = "x86_64-linux"; gcc = { arch = "alderlake"; tune = "alderlake"; }; };
-			# 			config.allowUnfree = true;
-			# 		};
-			# 	}];
-			# } ).pkgs.linuxPackages_zen;
-			# kernelPackages = inputs.pkgs.linuxPackages_zen;
 			kernelPackages = inputs.pkgs.linuxPackages_xanmod_latest;
 			initrd.availableKernelModules =
 			[
diff --git a/modules/hardware/sound.nix b/modules/hardware/sound.nix
index ee3c66e4..34844ce5 100644
--- a/modules/hardware/sound.nix
+++ b/modules/hardware/sound.nix
@@ -11,12 +11,5 @@
 			alsa = { enable = true; support32Bit = true; };
 			pulse.enable = true;
 		};
-		systemd.user.services.pipewire.serviceConfig.Nice = -20;
-		systemd.user.services.pipewire-pulse.serviceConfig.Nice = -20;
-		systemd.services.rtkit-daemon.serviceConfig.ExecStart =
-		[
-			""
-			"${inputs.pkgs.rtkit.outPath}/libexec/rtkit-daemon --our-realtime-priority=90 --max-realtime-priority=89 --min-nice-level=-19 --scheduling-policy=RR --rttime-usec-max=2000000 --users-max=100 --processes-per-user-max=1000 --threads-per-user-max=10000 --actions-burst-sec=10 --actions-per-burst-max=1000 --canary-cheep-msec=30000 --canary-watchdog-msec=60000"
-		];
 	};
 }