diff --git a/nixos/common.nix b/nixos/common.nix
index 5ba0531..be267ae 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -20,8 +20,12 @@
     options = [ "x-systemd.automount" "noauto" ];
   };
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
-  nix.settings.trusted-users = [ "root" "jahanson" ];
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+    trusted-users = [ "root" "jahanson" ];
+    extra-substituters = "https://cache.garnix.io";
+    extra-trusted-public-keys = "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g=";
+  };
 
   # Enable fish
   programs.fish.enable = true;