diff --git a/nix/manifest.nix b/nix/manifest.nix
index cd305e2..f87deed 100644
--- a/nix/manifest.nix
+++ b/nix/manifest.nix
@@ -6,7 +6,6 @@ let
         device = "/dev/sda1";
         fsType = "ext4";
       };
-      nixpkgs.hostPlatform = "x86_64-linux";
       boot.loader.systemd-boot.enable = true;
       networking = { inherit hostName; };
     };
diff --git a/nix/modules/machine/platform.nix b/nix/modules/machine/platform.nix
new file mode 100644
index 0000000..ae8ab61
--- /dev/null
+++ b/nix/modules/machine/platform.nix
@@ -0,0 +1,14 @@
+{ config, ... }:
+{
+  flake.modules.nixos.default =
+    { hostName, ... }:
+    let
+      inherit (config.flake.manifest.hosts.nixos.${hostName}.machine) platform;
+      arch = if platform == "amd" || platform == "intel" then "x86_64" else "aarch64";
+    in
+    {
+      hardware.cpu.${platform}.updateMicrocode = true;
+      boot.kernelModules = [ "kvm-${platform}" ];
+      nixpkgs.hostPlatform = "${arch}-linux";
+    };
+}