diff --git a/src/ovtk_audiencekit/chats/Twitch/TwitchProcess.py b/src/ovtk_audiencekit/chats/Twitch/TwitchProcess.py
index f66734b..4dde8eb 100644
--- a/src/ovtk_audiencekit/chats/Twitch/TwitchProcess.py
+++ b/src/ovtk_audiencekit/chats/Twitch/TwitchProcess.py
@@ -27,6 +27,8 @@ class TwitchProcess(ChatProcess):
                  botname=None, emote_res=4.0,
                  # EventSub options
                  eventsub=True, eventsub_host='wss://ovtk.skeh.site/twitch',
+                 # BTTV integration
+                 bttv=False,
                  # Inheritance boilerplate
                  **kwargs):
         super().__init__(*args, **kwargs)
@@ -61,7 +63,7 @@ class TwitchProcess(ChatProcess):
             self.eventsub = TwitchEventSub(self.api, eventsub_host)
             self._sources.append(self.eventsub)
 
-        self.bttv = BTTV(target_data['user']['id'])
+        self.bttv = BTTV(target_data['user']['id']) if bttv else None
 
 
     def loop(self, next_state):
@@ -98,7 +100,7 @@ class TwitchProcess(ChatProcess):
             for event in chain(*(source.read(0.1) for source in self._sources)):
                 # Retarget event
                 event.via = self._name
-                if isinstance(event, Message):
+                if self.bttv and isinstance(event, Message):
                     event = self.bttv.hydrate(event)
                 self.publish(event)
             return 0
diff --git a/src/ovtk_audiencekit/core/Clip.py b/src/ovtk_audiencekit/core/Audio.py
similarity index 51%
rename from src/ovtk_audiencekit/core/Clip.py
rename to src/ovtk_audiencekit/core/Audio.py
index 78d3f68..e82c522 100644
--- a/src/ovtk_audiencekit/core/Clip.py
+++ b/src/ovtk_audiencekit/core/Audio.py
@@ -25,71 +25,62 @@ os.close(old_stderr)
 
 logger = logging.getLogger(__name__)
 
-
-def check_rate(index, channels, rate):
-    try:
-        return pyaudio.is_format_supported(rate,
-            output_channels=channels,
-            output_device=index,
-            output_format=pya.paFloat32)
-    except ValueError:
-        return False
-
-alt_rates = [44100, 48000]
 class Clip:
-    def __init__(self, path, output_index, buffer_length=2048, speed=1, force_stereo=True):
-        _raw, native_rate = librosa.load(path, sr=None, dtype='float32', mono=False)
-        self._channels = _raw.shape[0] if len(_raw.shape) == 2 else 1
-        if force_stereo and self._channels == 1:
-            _raw = np.resize(_raw, (2,*_raw.shape))
-            self._channels = 2
+    def __init__(self, path, samplerate=None, speed=1, keep_pitch=True, force_stereo=True):
+        self.path = path
+        raw, native_rate = librosa.load(self.path, sr=None, dtype='float32', mono=False)
 
-        target_samplerate = native_rate
-        if not check_rate(output_index, self._channels , native_rate):
-            try:
-                target_samplerate = next((rate for rate in alt_rates if check_rate(output_index, self._channels , rate)))
-            except StopIteration:
-                logger.warn('Target audio device does not claim to support any sample rates! Attempting playback at native rate')
-        self._samplerate = target_samplerate
+        self.channels = raw.shape[0] if len(raw.shape) == 2 else 1
+        if force_stereo and self.channels == 1:
+            raw = np.resize(raw, (2,*raw.shape))
+            self.channels = 2
 
-        if native_rate != self._samplerate:
-            _raw = librosa.resample(_raw, native_rate, self._samplerate, fix=True, scale=True)
+        self.samplerate = samplerate or native_rate
+        if native_rate != self.samplerate:
+            raw = librosa.resample(raw, native_rate, self.samplerate, fix=True, scale=True)
 
-        self._raw = np.ascontiguousarray(self._stereo_transpose(_raw), dtype='float32')
+        self.raw = np.ascontiguousarray(self._stereo_transpose(raw), dtype='float32')
 
         if speed != 1:
-            self.stretch(speed)
+            self.stretch(speed, keep_pitch=keep_pitch)
 
-        self._pos = 0
-        self._playing = False
+    @property
+    def length(self):
+        return self.raw.shape[0] / self.samplerate
+
+    def _stereo_transpose(self, ndata):
+        return ndata if self.channels == 1 else ndata.T
+
+    def stretch(self, speed, keep_pitch=True):
+        if keep_pitch:
+            stretched = tsm.wsola(self._stereo_transpose(self.raw), speed)
+        else:
+            stretched = librosa.resample(self._stereo_transpose(self.raw), self.samplerate * (1 / speed), self.samplerate, fix=False, scale=True)
+        self.raw = np.ascontiguousarray(self._stereo_transpose(stretched), dtype='float32')
+
+    def save(self, filename):
+        soundfile.write(filename, self._stereo_transpose(self.raw), self.samplerate)
+
+
+class Stream:
+    def __init__(self, clip, output_index, buffer_length=4096):
+        self.clip = clip
+        self.pos = 0
+        self.playing = False
         self._end_event = AioEvent()
         self._stream = pyaudio.open(
             output_device_index=output_index,
             format=pya.paFloat32,
-            channels=self._channels,
-            rate=self._samplerate,
+            channels=self.clip.channels,
+            rate=self.clip.samplerate,
             frames_per_buffer=buffer_length,
             output=True,
             stream_callback=self._read_callback,
             start=False)
 
-    @property
-    def length(self):
-        return self._raw.shape[0] / self._samplerate
-
-    def _stereo_transpose(self, ndata):
-        return ndata if self._channels == 1 else ndata.T
-
-    def stretch(self, speed):
-        stretched = tsm.wsola(self._stereo_transpose(self._raw), speed)
-        self._raw = np.ascontiguousarray(self._stereo_transpose(stretched), dtype='float32')
-
-    def save(self, filename):
-        soundfile.write(filename, self._stereo_transpose(self._raw), self._samplerate)
-
     def _play(self):
-        self._playing = True
-        self._pos = 0
+        self.playing = True
+        self.pos = 0
 
         if not self._stream.is_active():
             self._stream.start_stream()
@@ -97,38 +88,49 @@ class Clip:
     def play(self):
         self._end_event.clear()
         self._play()
-        self._end_event.wait(timeout=self.length)
+        self._end_event.wait(timeout=self.clip.length)
 
     async def aplay(self):
         self._end_event.clear()
         self._play()
         try:
-            await self._end_event.coro_wait(timeout=self.length)
+            await self._end_event.coro_wait(timeout=self.clip.length)
         except asyncio.CancelledError:
-            self._playing = False
+            self.playing = False
             self._stream.stop_stream()
 
     def close(self):
+        self._stream.stop_stream()
         self._stream.close()
 
     def _read_callback(self, in_data, frame_count, time_info, status):
-        if self._channels > 1:
-            buffer = np.zeros((frame_count, self._channels), dtype='float32')
+        if self.clip.channels > 1:
+            buffer = np.zeros((frame_count, self.clip.channels), dtype='float32')
         else:
             buffer = np.zeros((frame_count,), dtype='float32')
 
-        if self._playing:
-            newpos = self._pos + frame_count
-            clip_chunk = self._raw[self._pos:newpos]
-            self._pos = newpos
+        if self.playing:
+            newpos = self.pos + frame_count
+            clip_chunk = self.clip.raw[self.pos:newpos]
+            self.pos = newpos
             buffer[0:clip_chunk.shape[0]] = clip_chunk
 
-            if self._pos >= self._raw.shape[0]:
-                self._playing = False
+            if self.pos >= self.clip.raw.shape[0]:
+                self.playing = False
                 self._end_event.set()
 
         return buffer, pya.paContinue
 
+    @staticmethod
+    def check_rate(index, channels, rate):
+        try:
+            return pyaudio.is_format_supported(rate,
+                output_channels=channels,
+                output_device=index,
+                output_format=pya.paFloat32)
+        except ValueError:
+            return False
+
     @staticmethod
     def find_output_index(output):
         if output is None:
diff --git a/src/ovtk_audiencekit/core/MainProcess.py b/src/ovtk_audiencekit/core/MainProcess.py
index 863fd7c..9b9d692 100644
--- a/src/ovtk_audiencekit/core/MainProcess.py
+++ b/src/ovtk_audiencekit/core/MainProcess.py
@@ -219,9 +219,9 @@ class MainProcess:
                     plugin_module = import_or_reload_mod(module_name,
                                                          default_package='ovtk_audiencekit.plugins',
                                                          external=False)
-                    plugin = plugin_module.Plugin(self.chat_processes, self.event_queue, plugin_name, global_ctx,
-                                                  **node.props, **secrets_for_mod, _children=node.nodes)
+                    plugin = plugin_module.Plugin(self.chat_processes, self.event_queue, plugin_name, global_ctx)
                     self.plugins[plugin_name] = plugin
+                    await plugin._setup(*node.args[1:], **node.props, **secrets_for_mod)
                     # Register UI with webserver
                     self.webserver.register_blueprint(plugin.blueprint)
                 except Exception as e:
diff --git a/src/ovtk_audiencekit/core/PluginBase.py b/src/ovtk_audiencekit/core/PluginBase.py
index e16cafd..cd814b3 100644
--- a/src/ovtk_audiencekit/core/PluginBase.py
+++ b/src/ovtk_audiencekit/core/PluginBase.py
@@ -86,6 +86,18 @@ class PluginBase(ABC):
                 raise e
             raise PluginError(self._name, str(e)) from e
 
+    async def _setup(self, *args, **kwargs):
+        try:
+            res = self.setup(*args, **kwargs)
+            if asyncio.iscoroutinefunction(self.setup):
+                return await res
+            else:
+                return res
+        except Exception as e:
+            if isinstance(e, KeyboardInterrupt):
+                raise e
+            raise PluginError(self._name, str(e)) from e
+
     # Base class helpers
     def broadcast(self, event):
         """Send event to every active chat"""
@@ -123,6 +135,10 @@ class PluginBase(ABC):
         self._event_queue.put_nowait(event)
 
     # User-defined
+    async def setup(self, *args, **kwargs):
+        """Called when plugin is being loaded."""
+        pass
+
     def close(self):
         """Called when plugin is about to be unloaded. Use this to safely close any resouces if needed"""
         pass
@@ -143,7 +159,7 @@ class PluginBase(ABC):
         pass
 
     @abstractmethod
-    async def run(self, _children=None, _ctx={}, **kwargs):
+    async def run(self, *args, _children=None, _ctx={}, **kwargs):
         """
         Run plugin action, either due to a definition in the config, or due to another plugin
         """
diff --git a/src/ovtk_audiencekit/core/__init__.py b/src/ovtk_audiencekit/core/__init__.py
index 17c86a4..5de5ce3 100644
--- a/src/ovtk_audiencekit/core/__init__.py
+++ b/src/ovtk_audiencekit/core/__init__.py
@@ -1,3 +1,3 @@
 from .WebsocketServerProcess import WebsocketServerProcess
 from .MainProcess import MainProcess
-from .Clip import Clip
+from .Audio import Clip, Stream
diff --git a/src/ovtk_audiencekit/plugins/AudioAlert/AudioAlert.py b/src/ovtk_audiencekit/plugins/AudioAlert/AudioAlert.py
index dd48ab8..5726803 100644
--- a/src/ovtk_audiencekit/plugins/AudioAlert/AudioAlert.py
+++ b/src/ovtk_audiencekit/plugins/AudioAlert/AudioAlert.py
@@ -1,27 +1,80 @@
 import asyncio
+from collections import deque
+
+import maya
 
 from ovtk_audiencekit.plugins import PluginBase
-from ovtk_audiencekit.core import Clip
+from ovtk_audiencekit.core import Clip, Stream
 
 class AudioAlert(PluginBase):
-    def __init__(self, *args, output=None, buffer_length=2048, cutoff_prevention_buffers=None, **kwargs):
-        super().__init__(*args, **kwargs)
-        if cutoff_prevention_buffers:
-            self.logger.info('`cutoff_prevention_buffers` are depricated')
+    def setup(self, output=None, timeout_min=1, sample_rate=None, buffer_length=4096, force_stereo=True):
+        self.force_stereo = force_stereo
+        self.timeout_min = timeout_min
+        self.clips = {}
+        self.streams = {}
+        self.tasks = set()
+        self.buffer_length = int(buffer_length)
+        self.output_index = Stream.find_output_index(output)
+        if sample_rate is None:
+            try:
+                sample_rate = next((rate for rate in [44100, 48000] if Stream.check_rate(self.output_index, 1, rate)))
+            except StopIteration:
+                self.logger.warn('Target audio device does not claim to support common sample rates! Attempting playback at native rate of audio')
 
-        self.sounds = {}
-        self._buffer_length = int(buffer_length)
-        self._output_index = Clip.find_output_index(output)
+        self._cleanup_task = asyncio.create_task(self._cleanup())
+
+    def run(self, path, speed=1, keep_pitch=False, immediate=True, poly=1, **kwargs):
+        poly = int(poly)
+        key = f'{path}@{speed}{"X" if keep_pitch else "x"}'
+        clip = self.clips.get(key, [None, None])[0]
+
+        if clip is None:
+            clip = Clip(path, speed=speed, keep_pitch=keep_pitch, force_stereo=self.force_stereo)
+            self.clips[key] = [clip, maya.now()]
+        else:
+            self.clips[key][1] = maya.now()
+
+        stream_dq = self.streams.get(key, None)
+        if stream_dq is None:
+            stream_dq = deque(maxlen=poly)
+            self.streams[key] = stream_dq
+
+        if stream_dq.maxlen != poly:
+            self.logger.warn('Cannot change poly while streams are active!')
+
+        if len(stream_dq) == stream_dq.maxlen:
+            stream_dq.rotate(1)
+            stream = stream_dq[0]
+        else:
+            stream = Stream(clip, self.output_index,
+                            buffer_length=self.buffer_length)
+            stream_dq.append(stream)
 
-    def run(self, path, speed=1, immediate=True, **kwargs):
-        if self.sounds.get(path) is None:
-            self.sounds[path] = Clip(path,
-                                     self._output_index,
-                                     buffer_length=self._buffer_length,
-                                     speed=speed)
-        sound = self.sounds.get(path)
 
         if immediate:
-            asyncio.create_task(sound.aplay())
+            task = asyncio.create_task(stream.aplay())
+            task.add_done_callback(self.tasks.remove)
+            self.tasks.add(task)
         else:
-            sound.play()
+            stream.play()
+
+    def close(self):
+        self._cleanup_task.cancel()
+        for task in self.tasks:
+            task.cancel()
+        for stream_dq in self.streams.values():
+            for stream in stream_dq:
+                stream.close()
+
+    async def _cleanup(self):
+        while True:
+            await asyncio.sleep(60)
+            now = maya.now()
+            for key, [clip, last_used] in list(self.clips.items()):
+                if now >= last_used.add(minutes=self.timeout_min, seconds=clip.length):
+                    self.logger.debug(f'Dropping {key}')
+                    streams = self.streams.get(key, [])
+                    for stream in streams:
+                        stream.close()
+                    del self.streams[key]
+                    del self.clips[key]
diff --git a/src/ovtk_audiencekit/plugins/Jail/JailPlugin.py b/src/ovtk_audiencekit/plugins/Jail/JailPlugin.py
index d82b5c8..9426054 100644
--- a/src/ovtk_audiencekit/plugins/Jail/JailPlugin.py
+++ b/src/ovtk_audiencekit/plugins/Jail/JailPlugin.py
@@ -35,8 +35,7 @@ owomap = {
 }
 
 class JailPlugin(PluginBase):
-    def __init__(self, *args, min_level='vip', persist=True, **kwargs):
-        super().__init__(*args, **kwargs)
+    def setup(self, min_level='vip', persist=True):
         self.persist = persist
         self._cache = os.path.join(CACHE_DIR, 'Jail', 'sentences')
         os.makedirs(os.path.dirname(self._cache), exist_ok=True)
diff --git a/src/ovtk_audiencekit/plugins/OBS/obs.py b/src/ovtk_audiencekit/plugins/OBS/obs.py
index 644bbe2..3c56fd9 100644
--- a/src/ovtk_audiencekit/plugins/OBS/obs.py
+++ b/src/ovtk_audiencekit/plugins/OBS/obs.py
@@ -6,14 +6,10 @@ from ovtk_audiencekit.plugins import PluginBase
 
 
 class OBSWSPlugin(PluginBase):
-    def __init__(self, *args, password=None, uri='ws://localhost:4455', **kwargs):
-        super().__init__(*args, **kwargs)
+    async def setup(self, password=None, uri='ws://localhost:4455'):
         self.uri = uri
 
         self.obsws = simpleobsws.WebSocketClient(url=uri, password=password)
-        asyncio.get_event_loop().run_until_complete(self.setup())
-
-    async def setup(self):
         await self.obsws.connect()
         success = await self.obsws.wait_until_identified()
         if not success:
diff --git a/src/ovtk_audiencekit/plugins/OSC/osc.py b/src/ovtk_audiencekit/plugins/OSC/osc.py
index fc06234..0416b79 100644
--- a/src/ovtk_audiencekit/plugins/OSC/osc.py
+++ b/src/ovtk_audiencekit/plugins/OSC/osc.py
@@ -4,8 +4,7 @@ from ovtk_audiencekit.plugins import PluginBase
 
 
 class OSCPlugin(PluginBase):
-    def __init__(self, *args, ip='localhost', port=None, **kwargs):
-        super().__init__(*args, **kwargs)
+    def setup(self, ip='localhost', port=None):
         if port is None:
             raise RuntimeError('A unique port must be specified')
         self.client = SimpleUDPClient(ip, int(port))
diff --git a/src/ovtk_audiencekit/plugins/PhraseCounter/PhraseCounter.py b/src/ovtk_audiencekit/plugins/PhraseCounter/PhraseCounter.py
index 0a9fec2..0868b00 100644
--- a/src/ovtk_audiencekit/plugins/PhraseCounter/PhraseCounter.py
+++ b/src/ovtk_audiencekit/plugins/PhraseCounter/PhraseCounter.py
@@ -64,8 +64,7 @@ class PhraseCounter:
 
 
 class PhraseCounterPlugin(PluginBase):
-    def __init__(self, *args, debounce_time=1, persist=False, **kwargs):
-        super().__init__(*args, **kwargs)
+    def setup(self, debounce_time=1, persist=False):
         self.debounce_time = debounce_time
         self.persist = persist
 
diff --git a/src/ovtk_audiencekit/plugins/Shoutout/ShoutoutPlugin.py b/src/ovtk_audiencekit/plugins/Shoutout/ShoutoutPlugin.py
index 0e20c43..61afd6e 100644
--- a/src/ovtk_audiencekit/plugins/Shoutout/ShoutoutPlugin.py
+++ b/src/ovtk_audiencekit/plugins/Shoutout/ShoutoutPlugin.py
@@ -9,10 +9,8 @@ from ovtk_audiencekit.chats.Twitch import Process as Twitch
 
 
 class ShoutoutPlugin(PluginBase):
-    def __init__(self, *args, command='so', min_level='vip',
-                 text='Check out {link}!~ They were last streaming {last_game}',
-                 **kwargs):
-        super().__init__(*args, **kwargs)
+    def setup(self, command='so', min_level='vip',
+                 text='Check out {link}!~ They were last streaming {last_game}'):
         self.text = text
         if command:
             self.command = Command(name=command, help='Shoutout another user', required_level=min_level)
diff --git a/src/ovtk_audiencekit/plugins/TTS/TTS.py b/src/ovtk_audiencekit/plugins/TTS/TTS.py
index 124c61b..328cb68 100644
--- a/src/ovtk_audiencekit/plugins/TTS/TTS.py
+++ b/src/ovtk_audiencekit/plugins/TTS/TTS.py
@@ -8,24 +8,22 @@ from TTS.config import load_config
 
 from ovtk_audiencekit.plugins import PluginBase
 from ovtk_audiencekit.events import Message, SysMessage
-from ovtk_audiencekit.core import Clip
+from ovtk_audiencekit.core import Clip, Stream
 from ovtk_audiencekit.core.Data import CACHE_DIR
 
 
 class TextToSpeechPlugin(PluginBase):
-    def __init__(self, *args, output=None, cuda=None,
-                 engine="tts_models/en/ljspeech/tacotron2-DDC", speaker_wav=None,
-                 _children=None, **kwargs):
-        super().__init__(*args, _children=_children)
+    def setup(self, output=None, cuda=None,
+                 engine="tts_models/en/ljspeech/tacotron2-DDC", speaker_wav=None, **kwargs):
 
         self.speaker_wav = speaker_wav
 
-        self._output_index = Clip.find_output_index(output)
+        self.output_index = Stream.find_output_index(output)
 
         conf_overrides = {k[2:]: v for k, v in kwargs.items() if k.startswith('o_')}
 
-        self._cache = os.path.join(CACHE_DIR, 'tts')
-        os.makedirs(os.path.dirname(self._cache), exist_ok=True)
+        self.cache_dir = os.path.join(CACHE_DIR, 'tts')
+        os.makedirs(os.path.dirname(self.cache_dir), exist_ok=True)
 
         self.cuda = cuda
 
@@ -38,7 +36,7 @@ class TextToSpeechPlugin(PluginBase):
             vocoder_path, vocoder_config_path = None, None
 
         if conf_overrides:
-            override_conf_path = os.path.join(self._cache, f'{self._name}_override.json')
+            override_conf_path = os.path.join(self.cache_dir, f'{self._name}_override.json')
 
             config = load_config(config_path)
             for key, value in conf_overrides.items():
@@ -57,7 +55,7 @@ class TextToSpeechPlugin(PluginBase):
 
     def make_tts_wav(self, text, filename=None):
         if filename is None:
-            filename = os.path.join(self._cache, f'{uuid.uuid1()}.wav')
+            filename = os.path.join(self.cache_dir, f'{uuid.uuid1()}.wav')
 
         if self.speaker_wav:
             wav = self.synthesizer.tts(text, None, 'en', self.speaker_wav)
@@ -74,17 +72,20 @@ class TextToSpeechPlugin(PluginBase):
                 text += '.'
             filename = self.make_tts_wav(text)
             # TODO: Play direct from memory
-            clip = Clip(filename, self._output_index, force_stereo=False)
+            clip = Clip(filename, force_stereo=True)
+            stream = Stream(clip, self.output_index)
             if wait:
                 async def play():
-                    await clip.aplay()
-                    clip.close()
+                    await stream.aplay()
+                    stream.close()
+                    os.remove(os.path.join(self.cache_dir, filename))
                 asyncio.create_task(play())
             else:
-                clip.play()
-                clip.close()
+                stream.play()
+                stream.close()
+                os.remove(os.path.join(self.cache_dir, filename))
         except Exception as e:
-            print(e)
+            self.logger.error(f"Failed to make speech from input: {e}")
             if source_event := _ctx.get('event'):
                 msg = SysMessage(self._name, 'Failed to make speech from input!!')
 
diff --git a/src/ovtk_audiencekit/plugins/builtins/Chance.py b/src/ovtk_audiencekit/plugins/builtins/Chance.py
index a733b9f..5553fee 100644
--- a/src/ovtk_audiencekit/plugins/builtins/Chance.py
+++ b/src/ovtk_audiencekit/plugins/builtins/Chance.py
@@ -16,4 +16,7 @@ class ChancePlugin(PluginBase):
             raise ValueError('Chance must be a string (optionally ending in %) or number')
 
         if random.random() < chance / 100:
-            await self.execute_kdl(_children, _ctx=_ctx)
+            await self.execute_kdl([child for child in _children if child.name != 'or'], _ctx=_ctx)
+        else:
+            if elsenode := next((child for child in _children if child.name == 'or'), None):
+                await self.execute_kdl(elsenode.nodes, _ctx=_ctx)
diff --git a/src/ovtk_audiencekit/plugins/builtins/Cue.py b/src/ovtk_audiencekit/plugins/builtins/Cue.py
index ef3ebf9..75bfe01 100644
--- a/src/ovtk_audiencekit/plugins/builtins/Cue.py
+++ b/src/ovtk_audiencekit/plugins/builtins/Cue.py
@@ -31,7 +31,7 @@ class Cue:
     def is_obsolete(self):
         if self.repeat:
             return False
-        if self._next <= maya.now():
+        if self._next >= maya.now():
             return False
         return True
 
@@ -74,7 +74,7 @@ class CuePlugin(PluginBase):
             cue = Cue(repeat, **kwargs)
 
             async def handler():
-                # Repetion management
+                # Repetition management
                 if not cue.enabled:
                     return
                 if cue.repeat:
@@ -111,10 +111,16 @@ class CuePlugin(PluginBase):
         except ValueError as e:
             self.logger.error(f'Cannot schedule cue {name} at {at}: {e}')
 
+    def close(self):
+        self._cleanup_task.cancel()
+        for task in self.tasks.values():
+            self.scheduler.cancel(task)
+        self.scheduler._task.cancel()
+
     async def _cleanup(self):
         while True:
             await asyncio.sleep(60)
-            for name, (cue, _) in self.cues.items():
+            for name, (cue, _) in list(self.cues.items()):
                 if cue.is_obsolete():
                     del self.cues[name]
                     if task := self.tasks.get(name):
diff --git a/src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py b/src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py
index 23119af..21b56c2 100644
--- a/src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py
+++ b/src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py
@@ -14,6 +14,7 @@ from ovtk_audiencekit.utils import format_exception
 class Scene:
     name: str
     group: str
+    oneshot: bool
     enter: Callable
     exit: Callable
     entry_context: dict = field(default_factory=dict)
@@ -35,16 +36,16 @@ class ScenePlugin(PluginBase):
         self.blueprint.add_url_rule('/<name>/<cmd>', 'api-sceneset', self.ui_setscene)
         self.blueprint.add_url_rule('/monitor', 'monitor', self.ui_monitor_ws, is_websocket=True)
 
-    async def run(self, name, _children=None, _ctx={}, active=None, group=None, immediate=True, **kwargs):
+    async def run(self, name, _children=None, _ctx={}, active=None, group=None, immediate=True, oneshot=False, **kwargs):
         if _children is None and active is None:
             raise UsageError('Either define a new scene or set `--active` to true / false')
 
         if _children:
-            await self.define(name, group, _children, default_active=active, ctx=_ctx)
+            await self.define(name, group, _children, default_active=active, oneshot=oneshot, ctx=_ctx)
         else:
             await self.switch(name, active, is_immediate=immediate, ctx=_ctx)
 
-    async def define(self, name, group, children, default_active=False, ctx={}):
+    async def define(self, name, group, children, default_active=False, oneshot=False, ctx={}):
         if self.scenes.get(name) is not None:
             raise UsageError(f'Scene with name "{name}" already exists!')
 
@@ -63,7 +64,7 @@ class ScenePlugin(PluginBase):
         async def exit(ctx):
             await self.execute_kdl(exit_nodes, _ctx=ctx)
 
-        scene = Scene(name, group, enter, exit)
+        scene = Scene(name, group, oneshot, enter, exit)
         self.scenes[name] = scene
 
         if default_active:
@@ -74,7 +75,9 @@ class ScenePlugin(PluginBase):
         if scene is None:
             raise UsageError(f'No defined scene with name "{name}"')
 
-        if active:
+        if scene.oneshot:
+            await self._execute(scene, 'enter', is_immediate, ctx)
+        elif active:
             if current := self.active.get(scene.group):
                 if current == scene:
                     return
diff --git a/src/ovtk_audiencekit/plugins/builtins/Scene/templates/index.html b/src/ovtk_audiencekit/plugins/builtins/Scene/templates/index.html
index 5e2de71..10f10f0 100644
--- a/src/ovtk_audiencekit/plugins/builtins/Scene/templates/index.html
+++ b/src/ovtk_audiencekit/plugins/builtins/Scene/templates/index.html
@@ -24,8 +24,10 @@
             })
           })
           const toggle = async (group_name, scene_name) => {
-            if (inflight.value.includes(scene_name)) return
-            inflight.value.push(scene_name)
+            if (!groups.value[group_name][scene_name].oneshot) {
+              if (inflight.value.includes(scene_name)) return
+              inflight.value.push(scene_name)
+            }
             const next_state = !groups.value[group_name][scene_name]
             await fetch(`${scene_name}/${next_state ? 'activate' : 'deactivate'}`, { method: 'GET' })
           }