diff --git a/scripts/patch_vm_architecture.py b/scripts/patch_vm_architecture.py
new file mode 100644
index 0000000..52a1b99
--- /dev/null
+++ b/scripts/patch_vm_architecture.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import sys
+
+app_path = Path(sys.argv[1]) if len(sys.argv) > 1 else Path('/opt/virtuality/web/app.py')
+if not app_path.exists():
+    raise SystemExit(f'app.py not found: {app_path}')
+
+text = app_path.read_text()
+changed = []
+
+helpers = r'''
+
+def vm_arch_options(profile: dict[str, Any]) -> list[dict[str, str]]:
+    host_arch = str(profile.get("arch", ""))
+    options = [
+        {"value": "auto", "label": "Авто — рекомендовано для этого хоста"},
+        {"value": "x86_64", "label": "x86_64 / amd64 — обычные ПК и серверы"},
+        {"value": "aarch64", "label": "ARM64 / aarch64 — Raspberry Pi / Orange Pi / ARM Server"},
+    ]
+    if host_arch not in ("x86_64", "amd64", "aarch64", "arm64"):
+        options.append({"value": "generic", "label": "Generic QEMU — экспериментально"})
+    return options
+
+
+def resolve_vm_arch(arch_choice: str, profile: dict[str, Any]) -> str:
+    if arch_choice == "auto" or not arch_choice:
+        return str(profile.get("recommended_guest_arch") or "x86_64")
+    if arch_choice in ("x86_64", "aarch64", "generic"):
+        return arch_choice
+    return str(profile.get("recommended_guest_arch") or "x86_64")
+
+
+def append_arch_args(cmd: list[str], guest_arch: str) -> list[str]:
+    if guest_arch == "aarch64":
+        return cmd + ["--arch", "aarch64", "--machine", "virt", "--cpu", "host", "--virt-type", "kvm", "--boot", "uefi"]
+    if guest_arch == "x86_64":
+        return cmd + ["--arch", "x86_64"]
+    return cmd
+'''
+
+if 'def vm_arch_options(profile: dict[str, Any])' not in text:
+    marker = '\n\ndef vm_form_context('
+    if marker not in text:
+        raise SystemExit('vm_form_context marker not found')
+    text = text.replace(marker, helpers + marker, 1)
+    changed.append('architecture helpers added')
+else:
+    changed.append('architecture helpers already present')
+
+old_context = '"disk_images": list_disk_image_files(), "error": error, "profile": profile, "form": form or {"memory": 2048, "vcpus": 2, "disk_size": 20, "source_type": "iso", "network_mode": default_mode, "bridge": DEFAULT_BRIDGE}}'
+new_context = '"disk_images": list_disk_image_files(), "arch_options": vm_arch_options(profile), "error": error, "profile": profile, "form": form or {"memory": 2048, "vcpus": 2, "disk_size": 20, "source_type": "iso", "guest_arch": "auto", "network_mode": default_mode, "bridge": DEFAULT_BRIDGE}}'
+if old_context in text:
+    text = text.replace(old_context, new_context, 1)
+    changed.append('vm form context gets arch options')
+elif '"arch_options": vm_arch_options(profile)' in text:
+    changed.append('vm form context already has arch options')
+else:
+    # support older app without disk_images patch
+    old_context2 = '"isos": list_iso_files(), "error": error, "profile": profile, "form": form or {"memory": 2048, "vcpus": 2, "disk_size": 20, "network_mode": default_mode, "bridge": DEFAULT_BRIDGE}}'
+    new_context2 = '"isos": list_iso_files(), "disk_images": list_disk_image_files() if "list_disk_image_files" in globals() else [], "arch_options": vm_arch_options(profile), "error": error, "profile": profile, "form": form or {"memory": 2048, "vcpus": 2, "disk_size": 20, "source_type": "iso", "guest_arch": "auto", "network_mode": default_mode, "bridge": DEFAULT_BRIDGE}}'
+    if old_context2 in text:
+        text = text.replace(old_context2, new_context2, 1)
+        changed.append('vm form context gets arch options fallback')
+    else:
+        raise SystemExit('vm_form_context payload marker not found')
+
+old_sig = 'def vm_create_submit(request: Request, name: str = Form(...), memory: int = Form(...), vcpus: int = Form(...), disk_size: int = Form(...), iso_path: str = Form(""), disk_image_path: str = Form(""), source_type: str = Form("iso"), network_mode: str = Form("nat"), bridge: str = Form(DEFAULT_BRIDGE)):'
+new_sig = 'def vm_create_submit(request: Request, name: str = Form(...), memory: int = Form(...), vcpus: int = Form(...), disk_size: int = Form(...), iso_path: str = Form(""), disk_image_path: str = Form(""), source_type: str = Form("iso"), guest_arch: str = Form("auto"), network_mode: str = Form("nat"), bridge: str = Form(DEFAULT_BRIDGE)):'
+if old_sig in text:
+    text = text.replace(old_sig, new_sig, 1)
+    changed.append('vm create signature gets guest_arch')
+elif new_sig in text:
+    changed.append('vm create signature already has guest_arch')
+else:
+    old_sig2 = 'def vm_create_submit(request: Request, name: str = Form(...), memory: int = Form(...), vcpus: int = Form(...), disk_size: int = Form(...), iso_path: str = Form(...), network_mode: str = Form("nat"), bridge: str = Form(DEFAULT_BRIDGE)):'
+    new_sig2 = 'def vm_create_submit(request: Request, name: str = Form(...), memory: int = Form(...), vcpus: int = Form(...), disk_size: int = Form(...), iso_path: str = Form(...), guest_arch: str = Form("auto"), network_mode: str = Form("nat"), bridge: str = Form(DEFAULT_BRIDGE)):'
+    if old_sig2 in text:
+        text = text.replace(old_sig2, new_sig2, 1)
+        changed.append('vm create signature gets guest_arch fallback')
+    else:
+        raise SystemExit('vm_create_submit signature marker not found')
+
+old_form = 'form = {"name": name, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "iso_path": iso_path, "disk_image_path": disk_image_path, "source_type": source_type, "network_mode": network_mode, "bridge": bridge}'
+new_form = 'form = {"name": name, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "iso_path": iso_path, "disk_image_path": disk_image_path, "source_type": source_type, "guest_arch": guest_arch, "network_mode": network_mode, "bridge": bridge}'
+if old_form in text:
+    text = text.replace(old_form, new_form, 1)
+    changed.append('form state stores guest_arch')
+elif '"guest_arch": guest_arch' in text:
+    changed.append('form state already stores guest_arch')
+else:
+    old_form2 = 'form = {"name": name, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "iso_path": iso_path, "network_mode": network_mode, "bridge": bridge}'
+    new_form2 = 'form = {"name": name, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "iso_path": iso_path, "guest_arch": guest_arch, "network_mode": network_mode, "bridge": bridge}'
+    if old_form2 in text:
+        text = text.replace(old_form2, new_form2, 1)
+        changed.append('form state stores guest_arch fallback')
+
+old_validation = 'elif source_type not in ("iso", "disk_image"):\n        error = "Некорректный источник VM."'
+new_validation = 'elif source_type not in ("iso", "disk_image"):\n        error = "Некорректный источник VM."\n    elif guest_arch not in ("auto", "x86_64", "aarch64", "generic"):\n        error = "Некорректная архитектура VM."'
+if old_validation in text and 'Некорректная архитектура VM' not in text:
+    text = text.replace(old_validation, new_validation, 1)
+    changed.append('guest_arch validation added')
+elif 'Некорректная архитектура VM' in text:
+    changed.append('guest_arch validation already present')
+
+old_arch_block = '''    profile = host_profile.load_host_profile()
+    is_arm = profile.get("recommended_guest_arch") == "aarch64"
+    network_arg = f"network={network_core.NETWORK_NAME},model=virtio" if network_mode == "nat" else f"bridge={bridge},model=virtio"
+    cmd = ["virt-install", "--name", name, "--memory", str(memory), "--vcpus", str(vcpus)]
+    if is_arm:
+        cmd += ["--arch", "aarch64", "--machine", "virt", "--cpu", "host", "--virt-type", "kvm", "--boot", "uefi"]
+'''
+new_arch_block = '''    profile = host_profile.load_host_profile()
+    resolved_guest_arch = resolve_vm_arch(guest_arch, profile)
+    network_arg = f"network={network_core.NETWORK_NAME},model=virtio" if network_mode == "nat" else f"bridge={bridge},model=virtio"
+    cmd = ["virt-install", "--name", name, "--memory", str(memory), "--vcpus", str(vcpus)]
+    cmd = append_arch_args(cmd, resolved_guest_arch)
+'''
+if old_arch_block in text:
+    text = text.replace(old_arch_block, new_arch_block, 1)
+    changed.append('virt-install arch args made selectable')
+elif 'resolved_guest_arch = resolve_vm_arch' in text:
+    changed.append('virt-install arch args already selectable')
+else:
+    raise SystemExit('arch command block marker not found')
+
+text = text.replace('"guest_arch": profile.get("recommended_guest_arch"),', '"guest_arch": resolved_guest_arch, "guest_arch_choice": guest_arch,')
+text = text.replace('"guest_arch": profile.get("recommended_guest_arch")', '"guest_arch": resolved_guest_arch, "guest_arch_choice": guest_arch')
+
+app_path.write_text(text)
+print('vm architecture patch applied:')
+for item in changed:
+    print(f'- {item}')