diff --git a/ai-hub/app/core/templates/provisioning/provision.sh.j2 b/ai-hub/app/core/templates/provisioning/provision.sh.j2
index 723bf4d..0ce2b0e 100644
--- a/ai-hub/app/core/templates/provisioning/provision.sh.j2
+++ b/ai-hub/app/core/templates/provisioning/provision.sh.j2
@@ -63,11 +63,15 @@
     echo "[*] Falling back to Python Source + Virtualenv execution..."
     SOURCE_URL="{{ base_url }}/api/v1/nodes/provision/{{ node_id }}?token={{ invite_token }}"
     
-    # Use python to run the legacy bootstrap installer which handles platform-native installs
-    if ! curl -sSLf "$SOURCE_URL" | python3; then
+    mkdir -p "$INSTALL_DIR/tmp"
+    curl -sSLf "$SOURCE_URL" -o provision.py
+    
+    # Run with -B (no .pyc) and dedicated TMPDIR
+    if ! PYTHONDONTWRITEBYTECODE=1 TMPDIR="$INSTALL_DIR/tmp" python3 -B provision.py; then
         echo "❌ Provisioning failed via python bootstrap fallback."
         exit 1
     fi
+    
     # If the python script ran correctly, it would have already handled the rest of the install!
     echo "✅ Python-based bootstrap provisioning successful!"
     exit 0