diff --git a/streamjoy/_utils.py b/streamjoy/_utils.py
index 3cb5900..91c5cb1 100644
--- a/streamjoy/_utils.py
+++ b/streamjoy/_utils.py
@@ -186,7 +186,7 @@ def get_first(iterable):
 
 def get_result(future: Future) -> Any:
     if isinstance(future, Future):
-        return future.result()
+        return future.result(timeout=30)
     elif hasattr(future, "compute"):
         return future.compute()
     else:
diff --git a/streamjoy/serializers.py b/streamjoy/serializers.py
index 268e3b7..0997498 100644
--- a/streamjoy/serializers.py
+++ b/streamjoy/serializers.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import logging
+from packaging import version
 from inspect import isgenerator
 from pathlib import Path
 from typing import TYPE_CHECKING, Any, Callable
@@ -399,12 +400,14 @@ def _select_element(hv_obj, key):
             clims=clims,
         )
 
-    if kwargs.get("processes"):
-        logging.warning(
-            "HoloViews rendering does not support processes; "
-            "setting processes=False."
-        )
-    kwargs["processes"] = False
+    if version.parse(hv.__version__) < version.parse("1.19.0"):
+        if kwargs.get("processes"):
+            logging.warning(
+                "HoloViews<1.19.0 rendering does not support processes; "
+                "setting processes=False; to use processes, upgrade wih "
+                "`pip install 'holoviews>=1.19.0'`"
+            )
+        kwargs["processes"] = False
     return Serialized(resources, renderer, renderer_iterables, renderer_kwargs, kwargs)
 
 
diff --git a/streamjoy/streams.py b/streamjoy/streams.py
index c4aefdd..333742d 100644
--- a/streamjoy/streams.py
+++ b/streamjoy/streams.py
@@ -1105,7 +1105,7 @@ def _open_buffer(
                 """
             ],  # noqa: E501
         )
-        player = pn.widgets.Player(
+        self._player = pn.widgets.Player(
             name="Time",
             start=0,
             value=0,
@@ -1124,8 +1124,8 @@ def _open_buffer(
                 """
             ],
         )
-        player.jslink(tabs, value="active", bidirectional=True)
-        self._column.objects = [tabs, player]
+        self._player.jslink(tabs, value="active", bidirectional=True)
+        self._column.objects = [tabs, self._player]
         yield tabs
         image = tabs.objects[0]
         width = image.object.width
@@ -1136,7 +1136,7 @@ def _open_buffer(
                     width=width + 50,
                     height=height,
                 )
-                player.param.update(
+                self._player.param.update(
                     width=width,
                     end=len(tabs) - 1,
                 )
@@ -1151,7 +1151,7 @@ def _open_buffer(
                     max_height=int(height * 1.5),
                     sizing_mode=sizing_mode,
                 )
-                player.param.update(
+                self._player.param.update(
                     max_height=150,
                     max_width=450,
                     sizing_mode=sizing_mode,
@@ -1216,6 +1216,7 @@ def _write_images(self, buf: pn.Tabs, images: list[Future], **write_kwargs) -> N
                     self.fps,
                     **write_kwargs,
                 )
+            self._player.end = len(buf)
             del image
 
     def write(
diff --git a/streamjoy/wrappers.py b/streamjoy/wrappers.py
index 29f1f29..cf44ea9 100644
--- a/streamjoy/wrappers.py
+++ b/streamjoy/wrappers.py
@@ -112,6 +112,7 @@ def wrapped(*args, **kwargs) -> Path | BytesIO:
             import holoviews as hv
 
             backend = kwargs.get("backend", hv.Store.current_backend)
+            hv.extension(backend)
             output = renderer(*args, **kwargs)
 
             hv_obj = output