diff --git a/system/ui/lib/window.py b/system/ui/lib/window.py
deleted file mode 100644
index d039d80b80..0000000000
--- a/system/ui/lib/window.py
+++ /dev/null
@@ -1,57 +0,0 @@
-import threading
-import time
-import os
-from typing import Generic, Protocol, TypeVar
-from openpilot.system.ui.lib.application import gui_app
-
-
-class RendererProtocol(Protocol):
-  def render(self): ...
-
-
-R = TypeVar("R", bound=RendererProtocol)
-
-
-class BaseWindow(Generic[R]):
-  def __init__(self, title: str):
-    self._title = title
-    self._renderer: R | None = None
-    self._stop_event = threading.Event()
-    self._thread = threading.Thread(target=self._run)
-    self._thread.start()
-
-    # wait for the renderer to be initialized
-    while self._renderer is None and self._thread.is_alive():
-      time.sleep(0.01)
-
-  def _create_renderer(self) -> R:
-    raise NotImplementedError("Subclasses of BaseWindow must implement _create_renderer()")
-
-  def _run(self):
-    if os.getenv("CI") is not None:
-      return
-    gui_app.init_window("Spinner")
-    self._renderer = self._create_renderer()
-    try:
-      for _ in gui_app.render():
-        if self._stop_event.is_set():
-          break
-        self._renderer.render()
-    finally:
-      gui_app.close()
-
-  def __enter__(self):
-    return self
-
-  def close(self):
-    if self._thread.is_alive():
-      self._stop_event.set()
-      self._thread.join(timeout=2.0)
-      if self._thread.is_alive():
-        print(f"WARNING: failed to join {self._title} thread")
-
-  def __del__(self):
-    self.close()
-
-  def __exit__(self, exc_type, exc_val, exc_tb):
-    self.close()
diff --git a/system/ui/spinner.py b/system/ui/spinner.py
index 119bdba3e7..5da96c73f9 100755
--- a/system/ui/spinner.py
+++ b/system/ui/spinner.py
@@ -6,7 +6,6 @@ import time
 
 from openpilot.common.basedir import BASEDIR
 from openpilot.system.ui.lib.application import gui_app
-from openpilot.system.ui.lib.window import BaseWindow
 from openpilot.system.ui.text import wrap_text
 
 # Constants
@@ -86,12 +85,16 @@ class SpinnerRenderer:
                         FONT_SIZE, 0.0, rl.WHITE)
 
 
-class Spinner(BaseWindow[SpinnerRenderer]):
+class Spinner:
   def __init__(self):
-    super().__init__("Spinner")
+    self._renderer: SpinnerRenderer | None = None
+    self._stop_event = threading.Event()
+    self._thread = threading.Thread(target=self._run)
+    self._thread.start()
 
-  def _create_renderer(self):
-    return SpinnerRenderer()
+    # wait for the renderer to be initialized
+    while self._renderer is None and self._thread.is_alive():
+      time.sleep(0.01)
 
   def update(self, spinner_text: str):
     if self._renderer is not None:
@@ -100,6 +103,35 @@ class Spinner(BaseWindow[SpinnerRenderer]):
   def update_progress(self, cur: float, total: float):
     self.update(str(round(100 * cur / total)))
 
+  def _run(self):
+    if os.getenv("CI") is not None:
+      return
+    gui_app.init_window("Spinner")
+    self._renderer = renderer = SpinnerRenderer()
+    try:
+      for _ in gui_app.render():
+        if self._stop_event.is_set():
+          break
+        renderer.render()
+    finally:
+      gui_app.close()
+
+  def __enter__(self):
+    return self
+
+  def close(self):
+    if self._thread.is_alive():
+      self._stop_event.set()
+      self._thread.join(timeout=2.0)
+      if self._thread.is_alive():
+        print("WARNING: failed to join spinner thread")
+
+  def __del__(self):
+    self.close()
+
+  def __exit__(self, exc_type, exc_val, exc_tb):
+    self.close()
+
 
 if __name__ == "__main__":
   with Spinner() as s:
diff --git a/system/ui/text.py b/system/ui/text.py
index 33e8167c64..e57ae45d9a 100755
--- a/system/ui/text.py
+++ b/system/ui/text.py
@@ -1,12 +1,13 @@
 #!/usr/bin/env python3
+import os
 import re
+import threading
 import time
 import pyray as rl
 from openpilot.system.hardware import HARDWARE, PC
 from openpilot.system.ui.lib.button import gui_button, ButtonStyle
 from openpilot.system.ui.lib.scroll_panel import GuiScrollPanel
 from openpilot.system.ui.lib.application import gui_app
-from openpilot.system.ui.lib.window import BaseWindow
 
 MARGIN = 50
 SPACING = 40
@@ -73,18 +74,52 @@ class TextWindowRenderer:
     return ret
 
 
-class TextWindow(BaseWindow[TextWindowRenderer]):
+class TextWindow:
   def __init__(self, text: str):
     self._text = text
-    super().__init__("Text")
 
-  def _create_renderer(self):
-    return TextWindowRenderer(self._text)
+    self._renderer: TextWindowRenderer | None = None
+    self._stop_event = threading.Event()
+    self._thread = threading.Thread(target=self._run)
+    self._thread.start()
+
+    # wait for the renderer to be initialized
+    while self._renderer is None and self._thread.is_alive():
+      time.sleep(0.01)
 
   def wait_for_exit(self):
     while self._thread.is_alive():
       time.sleep(0.01)
 
+  def _run(self):
+    if os.getenv("CI") is not None:
+      return
+    gui_app.init_window("Text")
+    self._renderer = renderer = TextWindowRenderer(self._text)
+    try:
+      for _ in gui_app.render():
+        if self._stop_event.is_set():
+          break
+        renderer.render()
+    finally:
+      gui_app.close()
+
+  def __enter__(self):
+    return self
+
+  def close(self):
+    if self._thread.is_alive():
+      self._stop_event.set()
+      self._thread.join(timeout=2.0)
+      if self._thread.is_alive():
+        print("WARNING: failed to join text window thread")
+
+  def __del__(self):
+    self.close()
+
+  def __exit__(self, exc_type, exc_val, exc_tb):
+    self.close()
+
 
 if __name__ == "__main__":
   with TextWindow(DEMO_TEXT):