tadpole: Add boot module

hosts/tadpole/configuration.nix

@@ -11,15 +11,6 @@
 
   nixpkgs.config.allowUnfree = true;
 
-  boot = {
-    loader = {
-      grub = {
-        enable = true;
-        device = "/dev/sda";
-      };
-    };
-  };
-
   users.users.alex = {
     isNormalUser = true;
     extraGroups = [ "wheel" ];

hosts/tadpole/modules/boot/default.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  boot = {
+    loader = {
+      grub = {
+        enable = true;
+        device = "/dev/sda";
+      };
+    };
+  };
+}