diff --git a/machines/common.nix b/machines/common.nix
index f6f407f..435b6b6 100644
--- a/machines/common.nix
+++ b/machines/common.nix
@@ -5,22 +5,15 @@ inputs:
     extraOptions = ''
       experimental-features = nix-command flakes
     '';
-    binaryCaches = lib.mkForce [
-      "https://cache.nixos.org/"
-      "https://nix-community.cachix.org"
-    ];
-    binaryCachePublicKeys = [
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-    ];
-    #settings = {
-      #substituters = lib.mkForce [
-        #"https://cache.nixos.org/"
-        #"https://nix-community.cachix.org"
-      #];
-      #trusted-public-keys = [
-        #"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-      #];
-    #};
+    settings = {
+      substituters = lib.mkForce [
+        "https://cache.nixos.org/"
+        "https://nix-community.cachix.org"
+      ];
+      trusted-public-keys = [
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      ];
+    };
     # nix shell and nix build should use the same channel as the flake
     registry.nixpkgs.flake = inputs.nixpkgs;
   };