pi4 substituters

hosts/pi4/configuration.nix

@@ -24,14 +24,32 @@ in
     ../default.nix
   ];
 
+  
   # Enable nix flakes and nix-command tools
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
-  nix.settings.trusted-users = [ "@wheel" ];
-
+  nix = {
+    settings = {
+      substituters = [
+        "https://cache.mjallen.dev"
+        "https://nix-community.cachix.org"
+        "https://cache.nixos.org/"
+      ];
+      trusted-public-keys = [
+        "cache.mjallen.dev-1:IzFmKCd8/gggI6lcCXsW65qQwiCLGFFN9t9s2iw7Lvc="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      ];
+      warn-dirty = lib.mkForce false;
+      experimental-features = lib.mkForce [
+        "nix-command"
+        "flakes"
+      ];
+      trusted-users = lib.mkDefault [
+        "root"
+        "@wheel"
+        user
+      ];
+    };
+  };
+ 
   services.xserver = {
     enable = false;
     desktopManager = {