diff --git a/flake.lock b/flake.lock
index 69552542..babc0b5d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -840,21 +840,20 @@
         "flake-compat": "flake-compat_5",
         "nixpkgs": [
           "nixpkgs"
-        ],
-        "treefmt-nix": "treefmt-nix"
+        ]
       },
       "locked": {
-        "lastModified": 1756110286,
-        "narHash": "sha256-NE0HwcQCQTgM+HuYqmiemPf/5e+3fjwowceAyJj+ikU=",
+        "lastModified": 1759818599,
+        "narHash": "sha256-4Go3gVl3E+geWMcFQ+06qlkO/lJlSvS9dyhYiXLWYq0=",
         "owner": "nix-community",
         "repo": "nixos-apple-silicon",
-        "rev": "b99bf9bf7445416fe55da09034fc4a6cd733805c",
+        "rev": "24ab28e47b586f741910b3a2f0428f3523a0fff3",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
         "repo": "nixos-apple-silicon",
-        "rev": "b99bf9bf7445416fe55da09034fc4a6cd733805c",
+        "rev": "24ab28e47b586f741910b3a2f0428f3523a0fff3",
         "type": "github"
       }
     },
@@ -1439,27 +1438,6 @@
         "type": "github"
       }
     },
-    "treefmt-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixos-apple-silicon",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1754847726,
-        "narHash": "sha256-2vX8QjO5lRsDbNYvN9hVHXLU6oMl+V/PsmIiJREG4rE=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "7d81f6fb2e19bf84f1c65135d1060d829fae2408",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
-    },
     "wallpapers": {
       "flake": false,
       "locked": {
diff --git a/flake.nix b/flake.nix
index 15c93318..5cd5b6b1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -138,8 +138,8 @@
     };
 
     nixos-apple-silicon = {
-      # 2025-08-25 asahi-6.15.10-3
-      url = "github:nix-community/nixos-apple-silicon/b99bf9bf7445416fe55da09034fc4a6cd733805c";
+      # 2025-10-07 asahi-6.16.8-1
+      url = "github:nix-community/nixos-apple-silicon/24ab28e47b586f741910b3a2f0428f3523a0fff3";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
diff --git a/hosts/12kingdoms-shoukei/apple-silicon.nix b/hosts/12kingdoms-shoukei/apple-silicon.nix
index 6477d88a..49a14a12 100644
--- a/hosts/12kingdoms-shoukei/apple-silicon.nix
+++ b/hosts/12kingdoms-shoukei/apple-silicon.nix
@@ -9,6 +9,15 @@
     nixos-apple-silicon.nixosModules.default
   ];
 
+  nix.settings = {
+    extra-substituters = [
+      "https://nixos-apple-silicon.cachix.org"
+    ];
+    extra-trusted-public-keys = [
+      "nixos-apple-silicon.cachix.org-1:8psDu5SA5dAD7qA0zMy5UT292TxeEPzIz8VVEr2Js20="
+    ];
+  };
+
   environment.systemPackages = with pkgs-unstable; [
     box64 # Linux Userspace x86 and x86_64 Emulator, run x86_64 apps(such as games, gui apps) on aarch64.
     # https://asahilinux.org/2024/12/muvm-x11-bridging/