diff --git a/web/network_core.py b/web/network_core.py
index 74a70f3..606d4a8 100644
--- a/web/network_core.py
+++ b/web/network_core.py
@@ -1,11 +1,10 @@
 import json
 import re
+import subprocess
 import uuid
 from pathlib import Path
 from typing import Any
 
-from app_runtime import run_cmd
-
 CONFIG_DIR = Path('/var/lib/virtuality/config')
 NETWORK_DIR = Path('/var/lib/virtuality/network')
 NFT_DIR = Path('/etc/virtuality/nftables')
@@ -23,6 +22,14 @@ class NetworkError(Exception):
     pass
 
 
+def run_cmd(cmd: list[str], timeout: int = 12) -> dict[str, Any]:
+    try:
+        result = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout, check=False)
+        return {'ok': result.returncode == 0, 'code': result.returncode, 'stdout': result.stdout.strip(), 'stderr': result.stderr.strip(), 'cmd': ' '.join(cmd)}
+    except Exception as exc:
+        return {'ok': False, 'code': -1, 'stdout': '', 'stderr': str(exc), 'cmd': ' '.join(cmd)}
+
+
 def ensure_dirs() -> None:
     CONFIG_DIR.mkdir(parents=True, exist_ok=True)
     NETWORK_DIR.mkdir(parents=True, exist_ok=True)