Materialize private runtime directory for subprocesses

app.py

@@ -22,13 +22,14 @@ if not PRIVATE_REPO_TOKEN:
         "PRIVATE_REPO_TOKEN is not configured. Add it as a Hugging Face Space secret."
     )
 
-RUNTIME_ROOT = Path(
-    snapshot_download(
-        repo_id=PRIVATE_REPO_ID,
-        repo_type="model",
-        token=PRIVATE_REPO_TOKEN,
-    )
-).resolve()
+RUNTIME_ROOT = Path("/tmp/beyondretarget_runtime")
+snapshot_download(
+    repo_id=PRIVATE_REPO_ID,
+    repo_type="model",
+    token=PRIVATE_REPO_TOKEN,
+    local_dir=str(RUNTIME_ROOT),
+)
+RUNTIME_ROOT = RUNTIME_ROOT.resolve()
 
 required_files = [
     RUNTIME_ROOT / "runtime_app.py",