diff --git a/hosts/default.nix b/hosts/default.nix
index 2035cff..9a3da39 100644
--- a/hosts/default.nix
+++ b/hosts/default.nix
@@ -4,6 +4,7 @@ let
 
   commonModules = [
     ./nvim.nix
+    ./nix.nix
     {
       _module.args = globalArgs;
     }
@@ -11,7 +12,6 @@ let
   desktopModules = [
     ./xorg.nix
     ./wayland.nix
-    ./nix.nix
     ./desktop-pkgs.nix
     ./sound.nix
   ];
diff --git a/hosts/nix.nix b/hosts/nix.nix
index 976e614..75b54e7 100644
--- a/hosts/nix.nix
+++ b/hosts/nix.nix
@@ -3,6 +3,7 @@
   nixpkgs = {
     config = {
       allowBroken = true;
+      allowUnfree = true;
     };
     overlays = [
       self.overlays.default
@@ -15,14 +16,12 @@
     '';
     settings = {
       auto-optimise-store = true;
-      trusted-users = [ "root" "natto" ];
+      trusted-users = [ "root" "@wheel" ];
       substituters = [
-        "https://nix-gaming.cachix.org"
         "https://nix-community.cachix.org"
-        #       "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store"
+        "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store"
       ];
       trusted-public-keys = [
-        "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       ];
     };