diff --git a/ada/nix/settings/substituters.nix b/ada/nix/settings/substituters.nix
new file mode 100644
index 0000000..07934d8
--- /dev/null
+++ b/ada/nix/settings/substituters.nix
@@ -0,0 +1,26 @@
+_: {
+  nix = {
+    settings = {
+      substituters = [
+        # cache.nixos.org
+        "https://cache.nixos.org"
+        # "https://mirror.yandex.ru/nixos"
+
+        # cache.garnix.org
+        "https://cache.garnix.io"
+
+        # cachix
+        "https://nix-community.cachix.org"
+        "https://chaotic-nyx.cachix.org"
+        "https://hyprland.cachix.org"
+        "https://devenv.cachix.org"
+
+        # nix-community
+        "https://hydra.nix-community.org"
+
+        # cachyos kernels
+        "https://attic.xuyh0120.win/lantian"
+      ];
+    };
+  };
+}
diff --git a/ada/nix/settings/trusted-public-keys.nix b/ada/nix/settings/trusted-public-keys.nix
index 87843e2..7c7d46c 100644
--- a/ada/nix/settings/trusted-public-keys.nix
+++ b/ada/nix/settings/trusted-public-keys.nix
@@ -4,14 +4,19 @@ _: {
       trusted-public-keys = [
         # cache.nixos.org
         "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+
         # cache.garnix.io
         "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
+
         # cachix.org
         "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
         "chaotic-nyx.cachix.org-1:HfnXSw4pj95iI/n17rIDy40agHj12WfF+Gqk6SonIT8="
         "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
-        "chaotic-nyx.cachix.org-1:HfnXSw4pj95iI/n17rIDy40agHj12WfF+Gqk6SonIT8="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+
+        # attic.xuyh0120.win
+        "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc="
       ];
     };
   };
diff --git a/ada/nix/settings/trusted-substituters.nix b/ada/nix/settings/trusted-substituters.nix
deleted file mode 100644
index b5d0387..0000000
--- a/ada/nix/settings/trusted-substituters.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-_: {
-  nix = {
-    settings = {
-      trusted-substituters = [
-        # cache.nixos.org
-        "https://nixos-cache-proxy.cofob.dev"
-        "https://cache.nixos.org"
-        # cache.garnix.org
-        "https://cache.garnix.io"
-        # cachix
-        "https://nix-community.cachix.org/"
-        "https://chaotic-nyx.cachix.org/"
-        "https://ags.cachix.org"
-        "https://hyprland.cachix.org"
-        "https://chaotic-nyx.cachix.org/"
-      ];
-    };
-  };
-}