diff --git a/hardwareconfigurator.sh b/hardwareconfigurator.sh
new file mode 100755
index 0000000..a7d97c6
--- /dev/null
+++ b/hardwareconfigurator.sh
@@ -0,0 +1,120 @@
+#!/usr/bin/env bash
+set -e
+
+[[ $EUID -ne 0 ]] && echo "Run with sudo" && exit 1
+
+# ── CPU ──────────────────────────────────────────────────────────────────────
+VENDOR=$(grep -m1 'vendor_id' /proc/cpuinfo | awk '{print $3}')
+if [[ "$VENDOR" == "AuthenticAMD" ]]; then
+  CPU_MICROCODE="hardware.cpu.amd.updateMicrocode"
+  CPU_KVM="kvm-amd"
+else
+  CPU_MICROCODE="hardware.cpu.intel.updateMicrocode"
+  CPU_KVM="kvm-intel"
+fi
+
+# ── GPU ──────────────────────────────────────────────────────────────────────
+HAS_AMD=false
+HAS_NVIDIA=false
+lspci | grep -qi 'amd\|radeon' && HAS_AMD=true
+lspci | grep -qi 'nvidia'      && HAS_NVIDIA=true
+
+if $HAS_AMD && $HAS_NVIDIA; then
+  GPU_DRIVER="hybrid-amd-nvidia"
+elif $HAS_AMD; then
+  GPU_DRIVER="amd"
+elif $HAS_NVIDIA; then
+  GPU_DRIVER="nvidia"
+else
+  GPU_DRIVER="intel"
+fi
+
+echo "CPU: $VENDOR → $CPU_KVM"
+echo "GPU: $GPU_DRIVER"
+echo ""
+
+INITRD_MODULES=""
+if [[ "$GPU_DRIVER" == "hybrid-amd-nvidia" ]]; then
+  INITRD_MODULES="\"amdgpu\" \"nvidia\" \"nvidia_modeset\" \"nvidia_uvm\" \"nvidia_drm\""
+elif [[ "$GPU_DRIVER" == "intel" ]]; then
+  INITRD_MODULES="\"i915\""
+elif [[ "$GPU_DRIVER" == "amd" ]]; then
+  INITRD_MODULES="\"amdgpu\""
+elif [[ "$GPU_DRIVER" == "nvidia" ]]; then
+  INITRD_MODULES="\"nvidia\" \"nvidia_modeset\" \"nvidia_uvm\" \"nvidia_drm\""
+fi
+
+# ── Disks ────────────────────────────────────────────────────────────────────
+lsblk -o NAME,SIZE,FSTYPE,UUID,MOUNTPOINT
+echo ""
+
+read -rp "Root partition (e.g. /dev/sda2): " ROOT_PART
+[[ ! -b "$ROOT_PART" ]] && echo "Invalid partition" && exit 1
+ROOT_UUID=$(blkid -s UUID -o value "$ROOT_PART")
+ROOT_FSTYPE=$(blkid -s TYPE -o value "$ROOT_PART")
+echo "Root → $ROOT_UUID ($ROOT_FSTYPE)"
+
+read -rp "Boot/EFI partition (e.g. /dev/sda1): " BOOT_PART
+[[ ! -b "$BOOT_PART" ]] && echo "Invalid partition" && exit 1
+BOOT_UUID=$(blkid -s UUID -o value "$BOOT_PART")
+echo "Boot → $BOOT_UUID"
+
+EXTRA_BLOCK=""
+read -rp "Extra partition? (leave empty to skip): " EXTRA_PART
+if [[ -n "$EXTRA_PART" ]]; then
+  EXTRA_UUID=$(blkid -s UUID -o value "$EXTRA_PART")
+  EXTRA_FSTYPE=$(blkid -s TYPE -o value "$EXTRA_PART")
+  read -rp "Mount point (e.g. /mnt/hdd): " EXTRA_MOUNT
+  EXTRA_BLOCK="
+  fileSystems.\"$EXTRA_MOUNT\" = {
+    device = \"/dev/disk/by-uuid/$EXTRA_UUID\";
+    fsType = \"$EXTRA_FSTYPE\";
+    options = [ \"defaults\" \"nofail\" ];
+  };
+"
+fi
+
+# ── Write hardware.nix ───────────────────────────────────────────────────────
+cat > ./hardware.nix <<EOF
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ehci_pci" "ahci" "usb_storage" "usbhid" "sd_mod" ];
+  boot.initrd.kernelModules = [ $INITRD_MODULES ];
+  boot.kernelModules = [ "$CPU_KVM" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/$ROOT_UUID";
+    fsType = "$ROOT_FSTYPE";
+  };
+$EXTRA_BLOCK
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/$BOOT_UUID";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ ];
+
+  networking.useDHCP = lib.mkDefault true;
+
+  $CPU_MICROCODE = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
+EOF
+
+# ── Update machine.nix ───────────────────────────────────────────────────────
+if grep -q 'elars.hardware.graphics.driver' ./machine.nix; then
+  sed -i "s|elars.hardware.graphics.driver = .*|elars.hardware.graphics.driver = \"$GPU_DRIVER\";|" ./machine.nix
+  echo "Updated driver in machine.nix → $GPU_DRIVER"
+else
+  echo ""
+  echo "Add this line to machine.nix:"
+  echo "  elars.hardware.graphics.driver = \"$GPU_DRIVER\";"
+fi
+
+echo ""
+echo "Done. hardware.nix generated."
+[[ "$GPU_DRIVER" == "hybrid-amd-nvidia" ]] && \
+  echo "PRIME bus IDs needed — run: lspci | grep -E 'VGA|3D'"