diff --git a/modules/nixos/nix/default.nix b/modules/nixos/nix/default.nix
index 252382b..08ed962 100644
--- a/modules/nixos/nix/default.nix
+++ b/modules/nixos/nix/default.nix
@@ -6,19 +6,27 @@
     builders-use-substitutes = true;
 
     substituters = [
-      "https://cache.nixos.org"
       "https://anyrun.cachix.org"
+      "https://cache.lix.systems"
+      "https://cache.nixos.org"
+      "https://nix-community.cachix.org"
     ];
 
     trusted-public-keys = [
-      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
       "anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
+      "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
     ];
 
     experimental-features = [
       "nix-command"
       "flakes"
     ];
+
+    trusted-users = [
+      "@wheel"
+    ];
   };
 
   nixpkgs.hostPlatform = system;