diff --git a/hosts/wodan/default.nix b/hosts/wodan/default.nix
index 3328e1c..ca5991a 100644
--- a/hosts/wodan/default.nix
+++ b/hosts/wodan/default.nix
@@ -102,10 +102,22 @@
     superdirt-install
   ];
 
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
+  nix.settings = {
+    experimental-features = [
+      "nix-command"
+      "flakes"
+    ];
+
+    substituters = [
+      "https://cache.nixos.org/"
+      "https://nix-community.cachix.org"
+    ];
+
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
+  };
 
   services.tailscale.enable = true;
   services.mullvad-vpn = {