Differentiate hardware and vms in roles

nixos/roles/default.nix

@@ -1,16 +1,21 @@
 {
   pkgs,
   lib,
-  modulesPath,
+  vm ? true,
   ...
 }: {
-  imports = [
+  imports =
+    [
       ./admins.nix
       ./nix_keys.nix
       ./prometheusNodeExporter.nix
-    (modulesPath + "/virtualisation/xen-domU.nix")
       ../modules/impermanence.nix
-  ];
+    ]
+    ++ (
+      if vm
+      then [./vm.nix]
+      else [./hardware.nix]
+    );
   nix = {
     extraOptions = ''
       experimental-features = nix-command flakes

nixos/roles/hardware.nix

@@ -0,0 +1,5 @@
+{
+  # Bootloader
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+}

nixos/roles/vm.nix

@@ -0,0 +1,8 @@
+{
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/virtualisation/xen-domU.nix")
+  ];
+}