diff --git a/llms_txt/core.py b/llms_txt/core.py
index e8a43bc..838cb23 100644
--- a/llms_txt/core.py
+++ b/llms_txt/core.py
@@ -15,7 +15,7 @@
 from fastcore.script import *
 import httpx
 from urllib.parse import urlparse
-from nbdev.config import get_config
+from nbdev.config import *
 
 # %% ../nbs/01_core.ipynb
 def opt_re(s):
@@ -74,7 +74,7 @@ def _local_docs_pth(cfg): return cfg.config_path/'_proc'/cfg.doc_path.name
 def get_doc_content(url):
     "Fetch content from local file if in nbdev repo."
     cfg = get_config()
-    if url.startswith(cfg.doc_host):
+    if is_nbdev() and url.startswith(cfg.doc_host):
         relative_path = urlparse(url).path.lstrip('/')
         local_path = _local_docs_pth(cfg) / relative_path
         if local_path.exists(): return local_path.read_text()
diff --git a/nbs/01_core.ipynb b/nbs/01_core.ipynb
index c65c9fa..331f0de 100644
--- a/nbs/01_core.ipynb
+++ b/nbs/01_core.ipynb
@@ -51,7 +51,7 @@
     "from fastcore.script import *\n",
     "import httpx\n",
     "from urllib.parse import urlparse\n",
-    "from nbdev.config import get_config"
+    "from nbdev.config import *"
    ]
   },
   {
@@ -686,7 +686,7 @@
     "def get_doc_content(url):\n",
     "    \"Fetch content from local file if in nbdev repo.\"\n",
     "    cfg = get_config()\n",
-    "    if url.startswith(cfg.doc_host):\n",
+    "    if is_nbdev() and url.startswith(cfg.doc_host):\n",
     "        relative_path = urlparse(url).path.lstrip('/')\n",
     "        local_path = _local_docs_pth(cfg) / relative_path\n",
     "        if local_path.exists(): return local_path.read_text()\n",
@@ -778,8 +778,8 @@
      "data": {
       "text/plain": [
        "{'docs': {'internal docs - ed': 34464,\n",
-       "  'FastHTML quick start': 27376,\n",
-       "  'HTMX reference': 26427,\n",
+       "  'FastHTML quick start': 27383,\n",
+       "  'HTMX reference': 26642,\n",
        "  'Starlette quick guide': 7936},\n",
        " 'examples': {'Todo list application': 18558},\n",
        " 'optional': {'Starlette full documentation': 48331}}"
@@ -802,7 +802,7 @@
     {
      "data": {
       "text/plain": [
-       "164321"
+       "164543"
       ]
      },
      "execution_count": null,