DL fix again

packages/tracker/meshnet_tracker/server.py

@@ -3879,7 +3879,8 @@ class _TrackerHandler(http.server.BaseHTTPRequestHandler):
         self.send_header("Content-Type", "application/x-tar")
         self.send_header("X-Meshnet-Model-Source", "tracker")
         self.end_headers()
-        with tarfile.open(fileobj=self.wfile, mode="w|") as archive:
+        # dereference: HF cache snapshots are symlinks into blobs/ — ship contents.
+        with tarfile.open(fileobj=self.wfile, mode="w|", dereference=True) as archive:
             for rel in rel_files:
                 archive.add(snapshot_dir / rel, arcname=rel)
 
@@ -3924,6 +3925,22 @@ class _TrackerHandler(http.server.BaseHTTPRequestHandler):
         ]
 
         if not hf_nodes:
+            # The caller is not registered yet — count its memory toward
+            # deployability, or the first node can never bootstrap the network.
+            caller = _NodeEntry(
+                node_id="assign-candidate",
+                endpoint="",
+                shard_start=None,
+                shard_end=None,
+                model=None,
+                shard_checksum=None,
+                hardware_profile={},
+                wallet_address=None,
+                score=1.0,
+                vram_bytes=vram_mb * 1024 * 1024,
+                ram_bytes=ram_mb * 1024 * 1024,
+            )
+            pool_with_caller = all_nodes + [caller]
             resolved_name = None
             preset = None
             if filter_repo:
@@ -3932,7 +3949,7 @@ class _TrackerHandler(http.server.BaseHTTPRequestHandler):
                 deployable = [
                     (name, preset)
                     for name, preset in server.model_presets.items()
-                    if preset.get("recommended") and _deployment_summary(all_nodes, preset)["deployable"]
+                    if preset.get("recommended") and _deployment_summary(pool_with_caller, preset)["deployable"]
                 ]
                 if deployable:
                     resolved_name, preset = deployable[0]
@@ -3951,7 +3968,7 @@ class _TrackerHandler(http.server.BaseHTTPRequestHandler):
                     "num_layers": total_l,
                     "gap_found": True,
                     "price_per_token": 0.0,
-                    "deployment": _deployment_summary(all_nodes, preset),
+                    "deployment": _deployment_summary(pool_with_caller, preset),
                     "model_sources": self._model_sources(
                         str(resolved_name),
                         preset,
@@ -4340,7 +4357,13 @@ class TrackerServer:
         self._enable_hf_pricing = enable_hf_pricing
         self._hf_pricing_refresh_interval = hf_pricing_refresh_interval
         self._hf_pricing_fetch_html = hf_pricing_fetch_html
-        raw_models_dir = models_dir if models_dir is not None else os.environ.get("MESHNET_MODELS_DIR")
+        # MESHNET_DOWNLOAD_DIR is the node-side model store; on a box running
+        # both tracker and node it doubles as the tracker's snapshot source.
+        raw_models_dir = (
+            models_dir
+            if models_dir is not None
+            else os.environ.get("MESHNET_MODELS_DIR") or os.environ.get("MESHNET_DOWNLOAD_DIR")
+        )
         self._models_dir = Path(raw_models_dir).expanduser() if raw_models_dir else None
         self._hf_pricing_stop = threading.Event()
         self._hf_pricing_thread: threading.Thread | None = None