diff --git a/.github/workflows/test_server.yml b/.github/workflows/test_server.yml
index 2029a77c..2651f798 100644
--- a/.github/workflows/test_server.yml
+++ b/.github/workflows/test_server.yml
@@ -39,7 +39,7 @@ jobs:
         cd server
         poetry run python -m pytest -v tests
 
-  pep8:
+  formatting:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
@@ -53,6 +53,20 @@ jobs:
         cd server
         black --check reflector tests
 
+  linting:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.x
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.11
+    - name: Validate formatting
+      run: |
+        pip install ruff
+        cd server
+        ruff reflector tests
+
   docker:
     runs-on: ubuntu-latest
     steps:
diff --git a/server/reflector/llm/base.py b/server/reflector/llm/base.py
index 55c0de5f..6b5dbdc9 100644
--- a/server/reflector/llm/base.py
+++ b/server/reflector/llm/base.py
@@ -2,6 +2,7 @@ from reflector.logger import logger
 from reflector.settings import settings
 import asyncio
 import json
+import re
 
 
 class LLM:
@@ -48,11 +49,15 @@ class LLM:
     def _parse_json(self, result: str) -> dict:
         result = result.strip()
         # try detecting code block if exist
-        if result.startswith("```json\n") and result.endswith("```"):
-            result = result[8:-3]
-        elif result.startswith("```\n") and result.endswith("```"):
-            result = result[4:-3]
-        print(">>>", result)
+        # starts with ```json\n, ends with ```
+        # or starts with ```\n, ends with ```
+        # or starts with \n```javascript\n, ends with ```
+
+        regex = r"```(json|javascript|)?(.*)```"
+        matches = re.findall(regex, result.strip(), re.MULTILINE | re.DOTALL)
+        if not matches:
+            return result
+
+        # we have a match, try to parse it
+        result = matches[0][1]
         return json.loads(result.strip())
-
-
diff --git a/server/reflector/llm/llm_openai.py b/server/reflector/llm/llm_openai.py
index d4c565d6..517902e9 100644
--- a/server/reflector/llm/llm_openai.py
+++ b/server/reflector/llm/llm_openai.py
@@ -1,7 +1,6 @@
 from reflector.llm.base import LLM
 from reflector.logger import logger
 from reflector.settings import settings
-import json
 import httpx
 
 
diff --git a/server/reflector/processors/audio_transcript_auto.py b/server/reflector/processors/audio_transcript_auto.py
index 0ece84f3..9b792009 100644
--- a/server/reflector/processors/audio_transcript_auto.py
+++ b/server/reflector/processors/audio_transcript_auto.py
@@ -13,8 +13,8 @@ class AudioTranscriptAutoProcessor(AudioTranscriptProcessor):
     BACKEND_DEFAULT = "whisper"
 
     def __init__(self, backend=None, **kwargs):
-        super().__init__(**kwargs)
         self.processor = self.BACKENDS[backend or self.BACKEND_DEFAULT]()
+        super().__init__(**kwargs)
 
     def connect(self, processor: Processor):
         self.processor.connect(processor)
diff --git a/server/reflector/processors/audio_transcript_whisper.py b/server/reflector/processors/audio_transcript_whisper.py
index 9a85e9bf..0b768543 100644
--- a/server/reflector/processors/audio_transcript_whisper.py
+++ b/server/reflector/processors/audio_transcript_whisper.py
@@ -32,7 +32,11 @@ class AudioTranscriptWhisperProcessor(AudioTranscriptProcessor):
             transcript.text += segment.text
             for word in segment.words:
                 transcript.words.append(
-                    Word(text=word.word, start=ts + word.start, end=ts + word.end)
+                    Word(
+                        text=word.word,
+                        start=round(ts + word.start, 3),
+                        end=round(ts + word.end, 3),
+                    )
                 )
 
         return transcript
diff --git a/server/reflector/processors/transcript_summarizer.py b/server/reflector/processors/transcript_summarizer.py
index 4e149602..e4e55e9e 100644
--- a/server/reflector/processors/transcript_summarizer.py
+++ b/server/reflector/processors/transcript_summarizer.py
@@ -28,4 +28,3 @@ class TranscriptSummarizerProcessor(Processor):
             return
         self.logger.info(f"Writing to {self.filename}")
         await self.emit(self.filename)
-
diff --git a/server/reflector/tools/process.py b/server/reflector/tools/process.py
index aefbc153..0c8611d8 100644
--- a/server/reflector/tools/process.py
+++ b/server/reflector/tools/process.py
@@ -1,4 +1,3 @@
-from pathlib import Path
 import av
 from reflector.logger import logger
 from reflector.processors import (
@@ -8,11 +7,48 @@ from reflector.processors import (
     AudioTranscriptAutoProcessor,
     TranscriptLinerProcessor,
     TranscriptTopicDetectorProcessor,
-    TranscriptSummarizerProcessor,
+    # TranscriptSummarizerProcessor,
 )
 import asyncio
 
 
+async def process_audio_file(filename, event_callback):
+    async def on_transcript(data):
+        await event_callback("transcript", data)
+
+    async def on_topic(data):
+        await event_callback("topic", data)
+
+    async def on_summary(data):
+        await event_callback("summary", data)
+
+    # transcription output
+    pipeline = Pipeline(
+        AudioChunkerProcessor(),
+        AudioMergeProcessor(),
+        AudioTranscriptAutoProcessor.as_threaded(),
+        TranscriptLinerProcessor(callback=on_transcript),
+        TranscriptTopicDetectorProcessor.as_threaded(callback=on_topic),
+        # TranscriptSummarizerProcessor.as_threaded(
+        #     callback=on_summary
+        # ),
+    )
+    pipeline.describe()
+
+    # start processing audio
+    logger.info(f"Opening {filename}")
+    container = av.open(filename)
+    try:
+        logger.info("Start pushing audio into the pipeline")
+        for frame in container.decode(audio=0):
+            await pipeline.push(frame)
+    finally:
+        logger.info("Flushing the pipeline")
+        await pipeline.flush()
+
+    logger.info("All done !")
+
+
 if __name__ == "__main__":
     import argparse
 
@@ -20,42 +56,12 @@ if __name__ == "__main__":
     parser.add_argument("source", help="Source file (mp3, wav, mp4...)")
     args = parser.parse_args()
 
-    async def main():
-        async def on_transcript(transcript):
-            print(f"Transcript: [{transcript.human_timestamp}]: {transcript.text}")
+    async def event_callback(event, data):
+        if event == "transcript":
+            print(f"Transcript[{data.human_timestamp}]: {data.text}")
+        elif event == "topic":
+            print(f"Topic: {data}")
+        elif event == "summary":
+            print(f"Summary: {data}")
 
-        async def on_summary(summary):
-            print(f"Summary: {summary.title} - {summary.summary}")
-
-        async def on_final_summary(path):
-            print(f"Final Summary: {path}")
-
-        # transcription output
-        result_fn = Path(args.source).with_suffix(".jsonl")
-
-        pipeline = Pipeline(
-            AudioChunkerProcessor(),
-            AudioMergeProcessor(),
-            AudioTranscriptAutoProcessor.as_threaded(),
-            TranscriptLinerProcessor(callback=on_transcript),
-            TranscriptTopicDetectorProcessor.as_threaded(callback=on_summary),
-            TranscriptSummarizerProcessor.as_threaded(
-                filename=result_fn, callback=on_final_summary
-            ),
-        )
-        pipeline.describe()
-
-        # start processing audio
-        logger.info(f"Opening {args.source}")
-        container = av.open(args.source)
-        try:
-            logger.info("Start pushing audio into the pipeline")
-            for frame in container.decode(audio=0):
-                await pipeline.push(frame)
-        finally:
-            logger.info("Flushing the pipeline")
-            await pipeline.flush()
-
-        logger.info("All done !")
-
-    asyncio.run(main())
+    asyncio.run(process_audio_file(args.source, event_callback))
diff --git a/server/reflector/views/rtc_offer.py b/server/reflector/views/rtc_offer.py
index 03f9decf..f462a37a 100644
--- a/server/reflector/views/rtc_offer.py
+++ b/server/reflector/views/rtc_offer.py
@@ -73,8 +73,8 @@ async def rtc_offer(params: RtcOffer, request: Request):
     ctx.pipeline = Pipeline(
         AudioChunkerProcessor(),
         AudioMergeProcessor(),
-        AudioTranscriptAutoProcessor.as_threaded(),
-        TranscriptLinerProcessor(callback=on_transcript),
+        AudioTranscriptAutoProcessor.as_threaded(callback=on_transcript),
+        TranscriptLinerProcessor(),
         TranscriptTopicDetectorProcessor.as_threaded(callback=on_summary),
         # FinalSummaryProcessor.as_threaded(
         #     filename=result_fn, callback=on_final_summary
diff --git a/server/tests/test_processors_pipeline.py b/server/tests/test_processors_pipeline.py
new file mode 100644
index 00000000..312f76d6
--- /dev/null
+++ b/server/tests/test_processors_pipeline.py
@@ -0,0 +1,45 @@
+import pytest
+from unittest.mock import patch
+
+
+@pytest.mark.asyncio
+async def test_basic_process(event_loop):
+    # goal is to start the server, and send rtc audio to it
+    # validate the events received
+    from reflector.tools.process import process_audio_file
+    from reflector.settings import settings
+    from reflector.llm.base import LLM
+    from pathlib import Path
+
+    # use an LLM test backend
+    settings.LLM_BACKEND = "test"
+
+    class LLMTest(LLM):
+        async def _generate(self, prompt: str, **kwargs) -> str:
+            return {
+                "title": "TITLE",
+                "summary": "SUMMARY",
+            }
+
+    LLM.register("test", LLMTest)
+
+    # event callback
+    marks = {
+        "transcript": 0,
+        "topic": 0,
+        # "summary": 0,
+    }
+
+    async def event_callback(event, data):
+        print(f"{event}: {data}")
+        marks[event] += 1
+
+    # invoke the process and capture events
+    path = Path(__file__).parent / "records" / "test_mathieu_hello.wav"
+    await process_audio_file(path.as_posix(), event_callback)
+    print(marks)
+
+    # validate the events
+    assert marks["transcript"] == 5
+    assert marks["topic"] == 4
+    # assert marks["summary"] == 1