diff --git a/modules/nixos/boot/default.nix b/modules/nixos/boot/default.nix
index 60640ad..81ce5e5 100755
--- a/modules/nixos/boot/default.nix
+++ b/modules/nixos/boot/default.nix
@@ -1,11 +1,23 @@
-{ pkgs, ... }:
+{ pkgs, inputs, ... }:
 
 {
-  imports = [
-  ];
+  imports = [ ];
 
   environment.systemPackages = [ pkgs.efibootmgr ];
-  boot.kernelPackages = pkgs.linuxPackages_cachyos-lto;
+
+  nixpkgs.overlays = [
+    inputs.nix-cachyos-kernel.overlays.default
+  ];
+
+  boot.kernelPackages =
+    let
+      kernel = pkgs.cachyosKernels.linux-cachyos-bmq.override {
+        processorOpt = "x86_64-v2";
+        lto = "full";
+        bbr3 = true;
+      };
+    in
+    pkgs.linuxKernel.packagesFor kernel;
 
   boot.kernelParams = [
     "preempt=full"
diff --git a/modules/nixos/system/nix/default.nix b/modules/nixos/system/nix/default.nix
index c1a1e07..13041a9 100755
--- a/modules/nixos/system/nix/default.nix
+++ b/modules/nixos/system/nix/default.nix
@@ -7,13 +7,6 @@
       "flakes"
     ];
 
-    documentation = {
-      man.enable = true;
-      doc.enable = false;
-      info.enable = false;
-      nixos.enable = false;
-    };
-
     max-jobs = 4;
     cores = 4;
 
@@ -23,6 +16,7 @@
       "https://ezkea.cachix.org"
       "https://noctalia.cachix.org"
       "https://hyprland.cachix.org"
+      "https://attic.xuyh0120.win/lantian"
     ];
     trusted-public-keys = [
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
@@ -30,8 +24,16 @@
       "ezkea.cachix.org-1:ioBmUbJTZIKsHmWWXPe1FSFbeVe+afhfgqgTSNd34eI="
       "noctalia.cachix.org-1:pCOR47nnMEo5thcxNDtzWpOxNFQsBRglJzxWPp3dkU4="
       "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
+      "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc="
     ];
   };
 
+  documentation = {
+    man.enable = true;
+    doc.enable = false;
+    info.enable = false;
+    nixos.enable = false;
+  };
+
   programs.nix-ld.enable = true;
 }