Add Modal backend for audio mixdown

2026-02-04 18:06:48 +00:00 · 2026-01-21 17:06:17 -05:00
59 changed files with 973 additions and 2431 deletions
--- a/.gitleaksignore
+++ b/.gitleaksignore
@@ -3,4 +3,3 @@ docs/docs/installation/auth-setup.md:curl-auth-header:250
 docs/docs/installation/daily-setup.md:curl-auth-header:277
 gpu/self_hosted/DEV_SETUP.md:curl-auth-header:74
 gpu/self_hosted/DEV_SETUP.md:curl-auth-header:83
-server/reflector/worker/process.py:generic-api-key:465
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,33 +1,5 @@
 # Changelog

-## [0.31.0](https://github.com/Monadical-SAS/reflector/compare/v0.30.0...v0.31.0) (2026-01-23)
-
-
-### Features
-
-* mixdown optional ([#834](https://github.com/Monadical-SAS/reflector/issues/834)) ([fc3ef6c](https://github.com/Monadical-SAS/reflector/commit/fc3ef6c8933231c731fad84e7477a476a6220a5e))
-
-## [0.30.0](https://github.com/Monadical-SAS/reflector/compare/v0.29.0...v0.30.0) (2026-01-23)
-
-
-### Features
-
-* brady bunch ([#816](https://github.com/Monadical-SAS/reflector/issues/816)) ([6c175a1](https://github.com/Monadical-SAS/reflector/commit/6c175a11d8a3745095bfad06a4ad3ccdfd278433))
-
-## [0.29.0](https://github.com/Monadical-SAS/reflector/compare/v0.28.1...v0.29.0) (2026-01-21)
-
-
-### Features
-
-* set hatchet as default for multitracks ([#822](https://github.com/Monadical-SAS/reflector/issues/822)) ([c723752](https://github.com/Monadical-SAS/reflector/commit/c723752b7e15aa48a41ad22856f147a5517d3f46))
-
-## [0.28.1](https://github.com/Monadical-SAS/reflector/compare/v0.28.0...v0.28.1) (2026-01-21)
-
-
-### Bug Fixes
-
-* ics non-sync bugfix ([#823](https://github.com/Monadical-SAS/reflector/issues/823)) ([23d2bc2](https://github.com/Monadical-SAS/reflector/commit/23d2bc283d4d02187b250d2055103e0374ee93d6))
-
 ## [0.28.0](https://github.com/Monadical-SAS/reflector/compare/v0.27.0...v0.28.0) (2026-01-20)


--- a/gpu/modal_deployments/deploy-all.sh
+++ b/gpu/modal_deployments/deploy-all.sh
@@ -131,6 +131,15 @@ if [ -z "$DIARIZER_URL" ]; then
 fi
 echo "  -> $DIARIZER_URL"

+echo ""
+echo "Deploying mixdown (CPU audio processing)..."
+MIXDOWN_URL=$(modal deploy reflector_mixdown.py 2>&1 | grep -o 'https://[^ ]*web.modal.run' | head -1)
+if [ -z "$MIXDOWN_URL" ]; then
+    echo "Error: Failed to deploy mixdown. Check Modal dashboard for details."
+    exit 1
+fi
+echo "  -> $MIXDOWN_URL"
+
 # --- Output Configuration ---
 echo ""
 echo "=========================================="
@@ -147,4 +156,8 @@ echo ""
 echo "DIARIZATION_BACKEND=modal"
 echo "DIARIZATION_URL=$DIARIZER_URL"
 echo "DIARIZATION_MODAL_API_KEY=$API_KEY"
+echo ""
+echo "MIXDOWN_BACKEND=modal"
+echo "MIXDOWN_URL=$MIXDOWN_URL"
+echo "MIXDOWN_MODAL_API_KEY=$API_KEY"
 echo "# --- End Modal Configuration ---"
--- a/gpu/modal_deployments/reflector_mixdown.py
+++ b/gpu/modal_deployments/reflector_mixdown.py
@@ -0,0 +1,379 @@
+"""
+Reflector GPU backend - audio mixdown
+======================================
+
+CPU-intensive audio mixdown service for combining multiple audio tracks.
+Uses PyAV filter graph (amix) for high-quality audio mixing.
+"""
+
+import os
+import tempfile
+import time
+from fractions import Fraction
+
+import modal
+
+MIXDOWN_TIMEOUT = 900  # 15 minutes
+SCALEDOWN_WINDOW = 60  # 1 minute idle before shutdown
+
+app = modal.App("reflector-mixdown")
+
+# CPU-based image (no GPU needed for audio processing)
+image = (
+    modal.Image.debian_slim(python_version="3.12")
+    .apt_install("ffmpeg")  # Required by PyAV
+    .pip_install(
+        "av==13.1.0",  # PyAV for audio processing
+        "requests==2.32.3",  # HTTP for presigned URL downloads/uploads
+        "fastapi==0.115.12",  # API framework
+    )
+)
+
+
+@app.function(
+    cpu=4.0,  # 4 CPU cores for audio processing
+    timeout=MIXDOWN_TIMEOUT,
+    scaledown_window=SCALEDOWN_WINDOW,
+    secrets=[modal.Secret.from_name("reflector-gpu")],
+    image=image,
+)
+@modal.concurrent(max_inputs=10)
+@modal.asgi_app()
+def web():
+    import logging
+    import secrets
+    import shutil
+
+    import av
+    import requests
+    from av.audio.resampler import AudioResampler
+    from fastapi import Depends, FastAPI, HTTPException, status
+    from fastapi.security import OAuth2PasswordBearer
+    from pydantic import BaseModel
+
+    # Setup logging
+    logging.basicConfig(
+        level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"
+    )
+    logger = logging.getLogger(__name__)
+
+    app = FastAPI()
+    oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+    # Validate API key exists at startup
+    API_KEY = os.environ.get("REFLECTOR_GPU_APIKEY")
+    if not API_KEY:
+        raise RuntimeError("REFLECTOR_GPU_APIKEY not configured in Modal secrets")
+
+    def apikey_auth(apikey: str = Depends(oauth2_scheme)):
+        # Use constant-time comparison to prevent timing attacks
+        if secrets.compare_digest(apikey, API_KEY):
+            return
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Invalid API key",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    class MixdownRequest(BaseModel):
+        track_urls: list[str]
+        output_url: str
+        target_sample_rate: int = 48000
+        expected_duration_sec: float | None = None
+
+    class MixdownResponse(BaseModel):
+        duration_ms: float
+        tracks_mixed: int
+        audio_uploaded: bool
+
+    def download_track(url: str, temp_dir: str, index: int) -> str:
+        """Download track from presigned URL to temp file using streaming."""
+        logger.info(f"Downloading track {index + 1}")
+        response = requests.get(url, stream=True, timeout=300)
+
+        if response.status_code == 404:
+            raise HTTPException(status_code=404, detail=f"Track {index} not found")
+        if response.status_code == 403:
+            raise HTTPException(
+                status_code=403, detail=f"Track {index} presigned URL expired"
+            )
+
+        response.raise_for_status()
+
+        temp_path = os.path.join(temp_dir, f"track_{index}.webm")
+        total_bytes = 0
+        with open(temp_path, "wb") as f:
+            for chunk in response.iter_content(chunk_size=8192):
+                if chunk:
+                    f.write(chunk)
+                    total_bytes += len(chunk)
+
+        logger.info(f"Track {index + 1} downloaded: {total_bytes} bytes")
+        return temp_path
+
+    def mixdown_tracks_modal(
+        track_paths: list[str],
+        output_path: str,
+        target_sample_rate: int,
+        expected_duration_sec: float | None,
+        logger,
+    ) -> float:
+        """Mix multiple audio tracks using PyAV filter graph.
+
+        Args:
+            track_paths: List of local file paths to audio tracks
+            output_path: Local path for output MP3 file
+            target_sample_rate: Sample rate for output (Hz)
+            expected_duration_sec: Optional fallback duration if container metadata unavailable
+            logger: Logger instance for progress tracking
+
+        Returns:
+            Duration in milliseconds
+        """
+        logger.info(f"Starting mixdown of {len(track_paths)} tracks")
+
+        # Build PyAV filter graph: N abuffer -> amix -> aformat -> sink
+        graph = av.filter.Graph()
+        inputs = []
+
+        for idx in range(len(track_paths)):
+            args = (
+                f"time_base=1/{target_sample_rate}:"
+                f"sample_rate={target_sample_rate}:"
+                f"sample_fmt=s32:"
+                f"channel_layout=stereo"
+            )
+            in_ctx = graph.add("abuffer", args=args, name=f"in{idx}")
+            inputs.append(in_ctx)
+
+        mixer = graph.add("amix", args=f"inputs={len(inputs)}:normalize=0", name="mix")
+        fmt = graph.add(
+            "aformat",
+            args=f"sample_fmts=s32:channel_layouts=stereo:sample_rates={target_sample_rate}",
+            name="fmt",
+        )
+        sink = graph.add("abuffersink", name="out")
+
+        # Connect inputs to mixer (no delays for Modal implementation)
+        for idx, in_ctx in enumerate(inputs):
+            in_ctx.link_to(mixer, 0, idx)
+
+        mixer.link_to(fmt)
+        fmt.link_to(sink)
+        graph.configure()
+
+        # Open all containers
+        containers = []
+        try:
+            for i, path in enumerate(track_paths):
+                try:
+                    c = av.open(path)
+                    containers.append(c)
+                except Exception as e:
+                    logger.warning(
+                        f"Failed to open container {i}: {e}",
+                    )
+
+            if not containers:
+                raise ValueError("Could not open any track containers")
+
+            # Calculate total duration for progress reporting
+            max_duration_sec = 0.0
+            for c in containers:
+                if c.duration is not None:
+                    dur_sec = c.duration / av.time_base
+                    max_duration_sec = max(max_duration_sec, dur_sec)
+            if max_duration_sec == 0.0 and expected_duration_sec:
+                max_duration_sec = expected_duration_sec
+
+            # Setup output container
+            out_container = av.open(output_path, "w", format="mp3")
+            out_stream = out_container.add_stream("libmp3lame", rate=target_sample_rate)
+
+            decoders = [c.decode(audio=0) for c in containers]
+            active = [True] * len(decoders)
+            resamplers = [
+                AudioResampler(format="s32", layout="stereo", rate=target_sample_rate)
+                for _ in decoders
+            ]
+
+            current_max_time = 0.0
+            last_log_time = time.monotonic()
+            start_time = time.monotonic()
+
+            total_duration = 0
+
+            while any(active):
+                for i, (dec, is_active) in enumerate(zip(decoders, active)):
+                    if not is_active:
+                        continue
+                    try:
+                        frame = next(dec)
+                    except StopIteration:
+                        active[i] = False
+                        inputs[i].push(None)  # Signal end of stream
+                        continue
+
+                    if frame.sample_rate != target_sample_rate:
+                        continue
+
+                    # Progress logging (every 5 seconds)
+                    if frame.time is not None:
+                        current_max_time = max(current_max_time, frame.time)
+                        now = time.monotonic()
+                        if now - last_log_time >= 5.0:
+                            elapsed = now - start_time
+                            if max_duration_sec > 0:
+                                progress_pct = min(
+                                    100.0, (current_max_time / max_duration_sec) * 100
+                                )
+                                logger.info(
+                                    f"Mixdown progress: {progress_pct:.1f}% @ {current_max_time:.1f}s (elapsed: {elapsed:.1f}s)"
+                                )
+                            else:
+                                logger.info(
+                                    f"Mixdown progress: @ {current_max_time:.1f}s (elapsed: {elapsed:.1f}s)"
+                                )
+                            last_log_time = now
+
+                    out_frames = resamplers[i].resample(frame) or []
+                    for rf in out_frames:
+                        rf.sample_rate = target_sample_rate
+                        rf.time_base = Fraction(1, target_sample_rate)
+                        inputs[i].push(rf)
+
+                    # Pull mixed frames from sink and encode
+                    while True:
+                        try:
+                            mixed = sink.pull()
+                        except Exception:
+                            break
+                        mixed.sample_rate = target_sample_rate
+                        mixed.time_base = Fraction(1, target_sample_rate)
+
+                        # Encode and mux
+                        for packet in out_stream.encode(mixed):
+                            out_container.mux(packet)
+                            total_duration += packet.duration
+
+            # Flush remaining frames from filter graph
+            while True:
+                try:
+                    mixed = sink.pull()
+                except Exception:
+                    break
+                mixed.sample_rate = target_sample_rate
+                mixed.time_base = Fraction(1, target_sample_rate)
+
+                for packet in out_stream.encode(mixed):
+                    out_container.mux(packet)
+                    total_duration += packet.duration
+
+            # Flush encoder
+            for packet in out_stream.encode():
+                out_container.mux(packet)
+                total_duration += packet.duration
+
+            # Calculate duration in milliseconds
+            if total_duration > 0:
+                # Use the same calculation as AudioFileWriterProcessor
+                duration_ms = round(
+                    float(total_duration * out_stream.time_base * 1000), 2
+                )
+            else:
+                duration_ms = 0.0
+
+            out_container.close()
+            logger.info(f"Mixdown complete: duration={duration_ms}ms")
+
+        finally:
+            # Cleanup all containers
+            for c in containers:
+                if c is not None:
+                    try:
+                        c.close()
+                    except Exception:
+                        pass
+
+        return duration_ms
+
+    @app.post("/v1/audio/mixdown", dependencies=[Depends(apikey_auth)])
+    def mixdown(request: MixdownRequest) -> MixdownResponse:
+        """Mix multiple audio tracks into a single MP3 file.
+
+        Tracks are downloaded from presigned S3 URLs, mixed using PyAV,
+        and uploaded to a presigned S3 PUT URL.
+        """
+        if not request.track_urls:
+            raise HTTPException(status_code=400, detail="No track URLs provided")
+
+        logger.info(f"Mixdown request: {len(request.track_urls)} tracks")
+
+        temp_dir = tempfile.mkdtemp()
+        temp_files = []
+        output_mp3_path = None
+
+        try:
+            # Download all tracks
+            for i, url in enumerate(request.track_urls):
+                temp_path = download_track(url, temp_dir, i)
+                temp_files.append(temp_path)
+
+            # Mix tracks
+            output_mp3_path = os.path.join(temp_dir, "mixed.mp3")
+            duration_ms = mixdown_tracks_modal(
+                temp_files,
+                output_mp3_path,
+                request.target_sample_rate,
+                request.expected_duration_sec,
+                logger,
+            )
+
+            # Upload result to S3
+            logger.info("Uploading result to S3")
+            file_size = os.path.getsize(output_mp3_path)
+            with open(output_mp3_path, "rb") as f:
+                upload_response = requests.put(
+                    request.output_url, data=f, timeout=300
+                )
+
+            if upload_response.status_code == 403:
+                raise HTTPException(
+                    status_code=403, detail="Output presigned URL expired"
+                )
+
+            upload_response.raise_for_status()
+            logger.info(f"Upload complete: {file_size} bytes")
+
+            return MixdownResponse(
+                duration_ms=duration_ms,
+                tracks_mixed=len(request.track_urls),
+                audio_uploaded=True,
+            )
+
+        except HTTPException:
+            raise
+        except Exception as e:
+            logger.error(f"Mixdown failed: {e}", exc_info=True)
+            raise HTTPException(status_code=500, detail=f"Mixdown failed: {str(e)}")
+
+        finally:
+            # Cleanup temp files
+            for temp_path in temp_files:
+                try:
+                    os.unlink(temp_path)
+                except Exception as e:
+                    logger.warning(f"Failed to cleanup temp file {temp_path}: {e}")
+
+            if output_mp3_path and os.path.exists(output_mp3_path):
+                try:
+                    os.unlink(output_mp3_path)
+                except Exception as e:
+                    logger.warning(f"Failed to cleanup output file {output_mp3_path}: {e}")
+
+            try:
+                shutil.rmtree(temp_dir)
+            except Exception as e:
+                logger.warning(f"Failed to cleanup temp directory {temp_dir}: {e}")
+
+    return app
--- a/server/docs/DAILY_REFLECTOR_DATA_MODEL.md
+++ b/server/docs/DAILY_REFLECTOR_DATA_MODEL.md
@@ -1,496 +0,0 @@
-# Daily.co and Reflector Data Model
-
-This document explains the data model relationships between Daily.co's API concepts and Reflector's database schema, clarifying common sources of confusion.
-
---
-
-## Table of Contents
-
-1. [Core Entities Overview](#core-entities-overview)
-2. [Daily.co vs Reflector Terminology](#dailyco-vs-reflector-terminology)
-3. [Entity Relationships](#entity-relationships)
-4. [Recording Multiplicity](#recording-multiplicity)
-5. [Session Identifiers Explained](#session-identifiers-explained)
-6. [Time-Based Matching](#time-based-matching)
-7. [Multitrack Recording Details](#multitrack-recording-details)
-8. [Verified Example](#verified-example)
-
---
-
-## Core Entities Overview
-
-### Reflector's Four Primary Entities
-
-```
-┌─────────────────────────────────────────────────────────────────┐
-│ Room (Reflector)                                                │
-│ - Persistent meeting template                                   │
-│ - User-created configuration                                    │
-│ - Example: "team-standup"                                       │
-└────────────────────┬────────────────────────────────────────────┘
-                     │ 1:N
-                     ▼
-┌─────────────────────────────────────────────────────────────────┐
-│ Meeting (Reflector)                                             │
-│ - Single session instance                                       │
-│ - Creates NEW Daily.co room with timestamp                      │
-│ - Example: "team-standup-20260115120000"                        │
-└────────────────────┬────────────────────────────────────────────┘
-                     │ 1:N
-                     ▼
-┌─────────────────────────────────────────────────────────────────┐
-│ Recording (Reflector + Daily.co)                                │
-│ - One segment of audio/video                                    │
-│ - New recording created on stop/restart                         │
-│ - track_keys: JSON array of S3 file paths                       │
-└────────────────────┬────────────────────────────────────────────┘
-                     │ 1:1
-                     ▼
-┌─────────────────────────────────────────────────────────────────┐
-│ Transcript (Reflector)                                          │
-│ - Processed audio with transcription                            │
-│ - Diarization, summaries, topics                                │
-│ - One transcript per recording                                  │
-└─────────────────────────────────────────────────────────────────┘
-```
-
---
-
-## Daily.co vs Reflector Terminology
-
-### Room
-
-| Aspect | Daily.co | Reflector |
-|--------|----------|-----------|
-| **Definition** | Virtual meeting space on Daily.co platform | User-created meeting template/configuration |
-| **Lifetime** | Configurable expiration | Persistent until user deletes |
-| **Creation** | API call for each meeting | Pre-created by user once |
-| **Reuse** | Can host multiple sessions | Generates new Daily.co room per meeting |
-| **Name Format** | `room-name` (reusable) | `room-name` (base identifier) |
-| **Timestamping** | Not required | Meeting adds timestamp: `{name}-YYYYMMDDHHMMSS` |
-
-**Example:**
-```
-Reflector Room: "daily-private-igor" (persistent config)
-    ↓ starts meeting
-Daily.co Room: "daily-private-igor-20260110042117"
-```
-
-### Meeting
-
-| Aspect | Daily.co | Reflector |
-|--------|----------|-----------|
-| **Definition** | Session that starts when first participant joins | Explicit database record of a session |
-| **Identifier** | `mtgSessionId` (generated by Daily.co) | `meeting.id` (UUID, generated by Reflector) |
-| **Creation** | Implicit (first participant join) | Explicit API call before participants join |
-| **Purpose** | Tracks active session state | Links recordings, transcripts, participants |
-| **Scope** | Per room instance | Per Reflector room + timestamp |
-
-**Critical Limitation:** Daily.co's recordings API often does NOT return `mtgSessionId`, requiring time-based matching (see [Time-Based Matching](#time-based-matching)).
-
-### Recording
-
-| Aspect | Daily.co | Reflector |
-|--------|----------|-----------|
-| **Definition** | Audio/video files on S3 | Metadata + processing status |
-| **Types** | `cloud` (composed video), `raw-tracks` (multitrack) | Stores references + `track_keys` array |
-| **Multiplicity** | One recording object per start/stop cycle | One DB row per Daily.co recording object |
-| **Identifier** | Daily.co `recording_id` | Same `recording_id` (stored in DB) |
-| **Multitrack** | Array of `.webm` files (one per participant) | `track_keys` JSON array with S3 paths |
-| **Linkage** | Via `room_name` + `start_ts` | FK `meeting_id` (set via time-based match) |
-
-**Critical Behavior:** Recording **stops/restarts** create **separate recording objects** with unique IDs.
-
---
-
-## Entity Relationships
-
-### Database Schema Relationships
-
-```sql
-- Simplified schema showing key relationships
-
-TABLE room (
-    id VARCHAR PRIMARY KEY,
-    name VARCHAR UNIQUE,
-    platform VARCHAR  -- 'whereby' | 'daily'
-)
-
-TABLE meeting (
-    id VARCHAR PRIMARY KEY,
-    room_id VARCHAR REFERENCES room(id) ON DELETE CASCADE,  -- nullable
-    room_name VARCHAR,  -- Daily.co room name (timestamped)
-    start_date TIMESTAMP,
-    platform VARCHAR
-)
-
-TABLE recording (
-    id VARCHAR PRIMARY KEY,  -- Daily.co recording_id
-    meeting_id VARCHAR,      -- FK to meeting (set via time-based match)
-    bucket_name VARCHAR,
-    object_key VARCHAR,      -- S3 prefix
-    track_keys JSON,         -- Array of S3 keys for multitrack
-    recorded_at TIMESTAMP
-)
-
-TABLE transcript (
-    id VARCHAR PRIMARY KEY,
-    recording_id VARCHAR,    -- nullable FK
-    meeting_id VARCHAR,      -- nullable FK
-    room_id VARCHAR,         -- nullable FK
-    participants JSON,       -- [{id, speaker, name, user_id}, ...]
-    title VARCHAR,
-    long_summary VARCHAR,
-    webvtt TEXT
-)
-```
-
-**Relationship Cardinalities:**
-```
-1 Room → N Meetings
-1 Meeting → N Recordings (common: 1-21 recordings per meeting)
-1 Recording → 1 Transcript
-1 Meeting → N Transcripts (via recordings)
-```
-
---
-
-## Recording Multiplicity
-
-### Why Multiple Recordings Per Meeting?
-
-Daily.co creates a **new recording object** (new ID, new files) whenever recording stops and restarts. This happens due to:
-
-1. **Manual stop/start** - User clicks stop, then start recording again
-2. **Network reconnection** - Participant drops, reconnects → triggers restart
-3. **Participant rejoin** - Last participant leaves, new one joins → new session
-
---
-
-## Session Identifiers Explained
-
-### The Hidden Entity: Daily.co Meeting Session
-
-Daily.co has an **implicit ephemeral entity** that sits between Room and Recording:
-
-```
-Daily.co Room: "daily-private-igor-20260110042117"
-    │
-    ├─ Daily.co Meeting Session #1 (mtgSessionId: c04334de...)
-    │   └─ Recording #3 (f4a50f94) - 4s, 1 track
-    │
-    └─ Daily.co Meeting Session #2 (mtgSessionId: 4cdae3c0...)
-        ├─ Recording #2 (b0fa94da) - 80s, 2 tracks  ← recording stopped
-        └─ Recording #1 (05edf519) - 62s, 1 track   ← then restarted
-```
-
-**Daily.co Meeting Session:**
- **Lifecycle:** Starts when first participant joins, ends when last participant leaves
- **Identifier:** `mtgSessionId` (generated by Daily.co)
- **Persistence:** Ephemeral - new ID if everyone leaves and someone rejoins
- **Relationship:** 1 Session → N Recordings (if recording stops/restarts during session)
-
-**Key Insight:** Multiple recordings can share the same `mtgSessionId` if recording was stopped and restarted while participants remained connected.
-
-### mtgSessionId (Meeting Session Identifier)
-
-`mtgSessionId` identifies a **Daily.co meeting session** (not individual participants, not a room).
-
-### session_id (Per-Participant)
-
-**Different concept:** Per-participant connection identifier from webhooks.
-
-**Reflector Tracking:** `daily_participant_session` table
-```sql
-TABLE daily_participant_session (
-    id VARCHAR PRIMARY KEY,        -- {meeting_id}:{user_id}:{joined_at_ms}
-    meeting_id VARCHAR,
-    session_id VARCHAR,            -- From webhook (per-participant)
-    user_id VARCHAR,
-    user_name VARCHAR,
-    joined_at TIMESTAMP,
-    left_at TIMESTAMP
-)
-```
---
-
-## Time-Based Matching
-
-### Problem Statement
-
-Daily.co's recordings API does not reliably return `mtgSessionId`, making it impossible to directly link recordings to meetings via Daily.co's identifiers.
-
-**Example API response:**
-```json
-{
-  "id": "recording-uuid",
-  "room_name": "daily-private-igor-20260110042117",
-  "start_ts": 1768018896,
-  "mtgSessionId": null  ← Missing!
-}
-```
-
-### Solution: Time-Based Matching
-
-**Implementation:** `reflector/db/meetings.py:get_by_room_name_and_time()`
-
-
---
-
-## Multitrack Recording Details
-
-### track_keys JSON Array
-
-**Schema:** `recording.track_keys` (JSON, nullable)
-```sql
-- Example recording with 2 audio tracks
-{
-  "id": "b0fa94da-73b5-4f95-9239-5216a682a505",
-  "track_keys": [
-    "igormonadical/daily-private-igor-20260110042117/1768018896877-890c0eae-e186-4534-a7bd-7c794b7d6d7f-cam-audio-1768018914565",
-    "igormonadical/daily-private-igor-20260110042117/1768018896877-9660e8e9-4297-4f17-951d-0b2bf2401803-cam-audio-1768018899286"
-  ]
-}
-```
-
-**Semantics:**
- `track_keys = null` → Not multitrack (cloud recording)
- `track_keys = []` → Multitrack recording with no audio captured (silence/muted)
- `track_keys = [...]` → Multitrack with N audio tracks
-
-**Property:** `recording.is_multitrack` (Python)
-```python
-@property
-def is_multitrack(self) -> bool:
-    return self.track_keys is not None and len(self.track_keys) > 0
-```
-
-### Track Filename Format
-
-Daily.co multitrack filenames encode timing and participant information:
-
-**Format:** `{recording_start_ts}-{participant_id}-cam-audio-{track_start_ts}`
-
-**Example:** `1768018896877-890c0eae-e186-4534-a7bd-7c794b7d6d7f-cam-audio-1768018914565`
-
-**Parsed Components:**
-```python
-# reflector/utils/daily.py:25-60
-class DailyRecordingFilename(NamedTuple):
-    recording_start_ts: int  # 1768018896877 (milliseconds)
-    participant_id: str      # 890c0eae-e186-4534-a7bd-7c794b7d6d7f
-    track_start_ts: int      # 1768018914565 (milliseconds)
-```
-
-**Note:** Browser downloads from S3 add `.webm` extension due to MIME headers, but S3 object keys have no extension.
-
-### Video Track Filtering
-
-Daily.co API returns both audio and video tracks, but Reflector only processes audio.
-
-**Filtering Logic:** `reflector/worker/process.py:660`
-```python
-track_keys = [t.s3Key for t in recording.tracks if t.type == "audio"]
-```
-
-**Example API Response:**
-```json
-{
-  "tracks": [
-    {"type": "audio", "s3Key": "...cam-audio-1768018914565"},
-    {"type": "audio", "s3Key": "...cam-audio-1768018899286"},
-    {"type": "video", "s3Key": "...cam-video-1768018897095"}  ← Filtered out
-  ]
-}
-```
-
-**Result:** Only 2 audio tracks stored in `recording.track_keys`, video track discarded.
-
-**Rationale:** Reflector is audio transcription system; video not needed for processing.
-
-### Track-to-Participant Mapping
-
-**Flow:**
-1. Daily.co webhook/polling provides `track_keys` array
-2. Each track filename contains `participant_id`
-3. Reflector queries Daily.co API: `GET /meetings/{mtgSessionId}/participants`
-4. Maps `participant_id` → `user_name`
-5. Stores in `transcript.participants` JSON:
-```json
-[
-  {
-    "id": "890c0eae-e186-4534-a7bd-7c794b7d6d7f",
-    "speaker": 0,
-    "name": "test2",
-    "user_id": "907f2cc1-eaab-435f-8ee2-09185f416b22"
-  },
-  {
-    "id": "9660e8e9-4297-4f17-951d-0b2bf2401803",
-    "speaker": 1,
-    "name": "test",
-    "user_id": "907f2cc1-eaab-435f-8ee2-09185f416b22"
-  }
-]
-```
-
-**Diarization:** Multitrack recordings don't need speaker diarization AI — speaker identity comes from separate audio tracks.
-
---
-
-## Example
-
-### Meeting: daily-private-igor-20260110042117
-
-**Context:** User conducted test recording with start/stop cycles, producing 3 recordings.
-
-#### Database State
-
-```sql
-- Meeting
-id: 034804b8-cee2-4fb4-94d7-122f6f068a61
-room_name: daily-private-igor-20260110042117
-start_date: 2026-01-10 04:21:17+00
-```
-
-#### Daily.co API Response
-
-```json
-[
-  {
-    "id": "f4a50f94-053c-4f9d-bda6-78ad051fbc36",
-    "room_name": "daily-private-igor-20260110042117",
-    "start_ts": 1768018885,
-    "duration": 4,
-    "status": "finished",
-    "mtgSessionId": "c04334de-42a0-4c2a-96be-a49b068dca85",
-    "tracks": [
-      {"type": "audio", "s3Key": "...62e8f3ae...cam-audio-1768018885417"}
-    ]
-  },
-  {
-    "id": "b0fa94da-73b5-4f95-9239-5216a682a505",
-    "room_name": "daily-private-igor-20260110042117",
-    "start_ts": 1768018896,
-    "duration": 80,
-    "status": "finished",
-    "mtgSessionId": "4cdae3c0-86cb-4578-8a6d-3a228bb48345",
-    "tracks": [
-      {"type": "audio", "s3Key": "...890c0eae...cam-audio-1768018914565"},
-      {"type": "audio", "s3Key": "...9660e8e9...cam-audio-1768018899286"},
-      {"type": "video", "s3Key": "...9660e8e9...cam-video-1768018897095"}
-    ]
-  },
-  {
-    "id": "05edf519-9048-4b49-9a75-73e9826fd950",
-    "room_name": "daily-private-igor-20260110042117",
-    "start_ts": 1768018914,
-    "duration": 62,
-    "status": "finished",
-    "mtgSessionId": "4cdae3c0-86cb-4578-8a6d-3a228bb48345",
-    "tracks": [
-      {"type": "audio", "s3Key": "...890c0eae...cam-audio-1768018914948"}
-    ]
-  }
-]
-```
-
-**Key Observations:**
- 3 recording objects returned by Daily.co
- 2 different `mtgSessionId` values (2 different meeting instances)
- Recording #2 has 3 tracks (2 audio + 1 video)
- Timestamps: 1768018885 → 1768018896 (+11s) → 1768018914 (+18s)
-
-#### Reflector Database
-
-**Recordings:**
-```
-┌──────────────────────────────────────┬──────────────┬────────────┬──────────────────────────────────────┐
-│ id                                   │ track_count  │ duration   │ mtgSessionId                         │
-├──────────────────────────────────────┼──────────────┼────────────┼──────────────────────────────────────┤
-│ f4a50f94-053c-4f9d-bda6-78ad051fbc36 │ 1            │ 4s         │ c04334de-42a0-4c2a-96be-a49b068dca85 │
-│ b0fa94da-73b5-4f95-9239-5216a682a505 │ 2 (video=0)  │ 80s        │ 4cdae3c0-86cb-4578-8a6d-3a228bb48345 │
-│ 05edf519-9048-4b49-9a75-73e9826fd950 │ 1            │ 62s        │ 4cdae3c0-86cb-4578-8a6d-3a228bb48345 │
-└──────────────────────────────────────┴──────────────┴────────────┴──────────────────────────────────────┘
-```
-**Note:** Recording #2 has 2 audio tracks (video filtered out), not 3.
-
-**Transcripts:**
-```
-┌──────────────────────────────────────┬──────────────────────────────────────┬──────────────┬──────────────────────────────────────────────┐
-│ id                                   │ recording_id                         │ participants │ title                                        │
-├──────────────────────────────────────┼──────────────────────────────────────┼──────────────┼──────────────────────────────────────────────┤
-│ 17149b1f-546c-4837-80a0-f8140bd16592 │ f4a50f94-053c-4f9d-bda6-78ad051fbc36 │ 1 (test)     │ (empty - no speech)                          │
-│ 49801332-3222-4c11-bdb2-375479fc87f2 │ b0fa94da-73b5-4f95-9239-5216a682a505 │ 2 (test,     │ "Examination and Validation Procedures       │
-│                                      │                                      │   test2)     │  Review"                                     │
-│ e5271e12-20fb-42d2-b5a8-21438abadef9 │ 05edf519-9048-4b49-9a75-73e9826fd950 │ 1 (test2)    │ "Technical Sound Check Procedure Review"     │
-└──────────────────────────────────────┴──────────────────────────────────────┴──────────────┴──────────────────────────────────────────────┘
-```
-
-**Transcript Content:**
-
-*Transcript #1* (17149b1f): Empty WebVTT (no audio captured)
-
-*Transcript #2* (49801332):
-```webvtt
-WEBVTT
-
-00:00:03.109 --> 00:00:05.589
-<v Speaker1>Test, test, test. Test, test, test, test, test.
-
-00:00:19.829 --> 00:00:22.710
-<v Speaker0>Test test test test test test test test test test test.
-```
-**AI-Generated Summary:**
-> "The meeting focused on the critical importance of rigorous testing for ensuring reliability and quality, with test and test2 emphasizing the need for a structured testing framework and meticulous documentation..."
-
-*Transcript #3* (e5271e12):
-```webvtt
-WEBVTT
-
-00:00:02.029 --> 00:00:04.910
-<v Speaker0>Test, test, test, test, test, test, test, test, test, test, test.
-```
-
-#### Validation: track_keys → participants
-
-**Recording #2 (b0fa94da) tracks:**
-```json
-[
-  ".../890c0eae-e186-4534-a7bd-7c794b7d6d7f-cam-audio-...",
-  ".../9660e8e9-4297-4f17-951d-0b2bf2401803-cam-audio-..."
-]
-```
-
-**Transcript #2 (49801332) participants:**
-```json
-[
-  {"id": "890c0eae-e186-4534-a7bd-7c794b7d6d7f", "speaker": 0, "name": "test2"},
-  {"id": "9660e8e9-4297-4f17-951d-0b2bf2401803", "speaker": 1, "name": "test"}
-]
-```
-
-### Data Flow
-
-```
-Daily.co API: 3 recordings
-    ↓
-Polling: _poll_raw_tracks_recordings()
-    ↓
-Worker: process_multitrack_recording.delay() × 3
-    ↓
-DB: 3 recording rows created
-    ↓
-Pipeline: Audio processing + transcription × 3
-    ↓
-DB: 3 transcript rows created (1:1 with recordings)
-    ↓
-UI: User sees 3 separate transcripts
-```
-
-**Result:** ✅ 1:1 Recording → Transcript relationship maintained.
-
-
---
-**Document Version:** 1.0
-**Last Verified:** 2026-01-15
-**Data Source:** Production database + Daily.co API inspection
--- a/server/migrations/versions/1b1e6a6fc465_add_cloud_recording_support.py
+++ b/server/migrations/versions/1b1e6a6fc465_add_cloud_recording_support.py
@@ -1,40 +0,0 @@
-"""add cloud recording support
-
-Revision ID: 1b1e6a6fc465
-Revises: bd3a729bb379
-Create Date: 2026-01-09 17:17:33.535620
-
-"""
-
-from typing import Sequence, Union
-
-import sqlalchemy as sa
-from alembic import op
-
-# revision identifiers, used by Alembic.
-revision: str = "1b1e6a6fc465"
-down_revision: Union[str, None] = "bd3a729bb379"
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    with op.batch_alter_table("meeting", schema=None) as batch_op:
-        batch_op.add_column(
-            sa.Column("daily_composed_video_s3_key", sa.String(), nullable=True)
-        )
-        batch_op.add_column(
-            sa.Column("daily_composed_video_duration", sa.Integer(), nullable=True)
-        )
-
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    with op.batch_alter_table("meeting", schema=None) as batch_op:
-        batch_op.drop_column("daily_composed_video_duration")
-        batch_op.drop_column("daily_composed_video_s3_key")
-
-    # ### end Alembic commands ###
--- a/server/migrations/versions/80beb1ea3269_replace_use_hatchet_with_use_celery.py
+++ b/server/migrations/versions/80beb1ea3269_replace_use_hatchet_with_use_celery.py
@@ -1,44 +0,0 @@
-"""replace_use_hatchet_with_use_celery
-
-Revision ID: 80beb1ea3269
-Revises: bd3a729bb379
-Create Date: 2026-01-20 16:26:25.555869
-
-"""
-
-from typing import Sequence, Union
-
-import sqlalchemy as sa
-from alembic import op
-
-# revision identifiers, used by Alembic.
-revision: str = "80beb1ea3269"
-down_revision: Union[str, None] = "bd3a729bb379"
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    with op.batch_alter_table("room", schema=None) as batch_op:
-        batch_op.add_column(
-            sa.Column(
-                "use_celery",
-                sa.Boolean(),
-                server_default=sa.text("false"),
-                nullable=False,
-            )
-        )
-        batch_op.drop_column("use_hatchet")
-
-
-def downgrade() -> None:
-    with op.batch_alter_table("room", schema=None) as batch_op:
-        batch_op.add_column(
-            sa.Column(
-                "use_hatchet",
-                sa.Boolean(),
-                server_default=sa.text("false"),
-                nullable=False,
-            )
-        )
-        batch_op.drop_column("use_celery")
--- a/server/migrations/versions/e69f08ead8ea_merge_cloud_recording_and_celery_heads.py
+++ b/server/migrations/versions/e69f08ead8ea_merge_cloud_recording_and_celery_heads.py
@@ -1,23 +0,0 @@
-"""merge cloud recording and celery heads
-
-Revision ID: e69f08ead8ea
-Revises: 1b1e6a6fc465, 80beb1ea3269
-Create Date: 2026-01-21 21:39:10.326841
-
-"""
-
-from typing import Sequence, Union
-
-# revision identifiers, used by Alembic.
-revision: str = "e69f08ead8ea"
-down_revision: Union[str, None] = ("1b1e6a6fc465", "80beb1ea3269")
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    pass
-
-
-def downgrade() -> None:
-    pass
--- a/server/reflector/dailyco_api/init.py
+++ b/server/reflector/dailyco_api/init.py
@@ -3,7 +3,7 @@ Daily.co API Module
 """

 # Client
-from .client import DailyApiClient, DailyApiError, RecordingType
+from .client import DailyApiClient, DailyApiError

 # Request models
 from .requests import (
@@ -64,7 +64,6 @@ __all__ = [
    # Client
    "DailyApiClient",
    "DailyApiError",
-    "RecordingType",
    # Requests
    "CreateRoomRequest",
    "RoomProperties",
--- a/server/reflector/dailyco_api/client.py
+++ b/server/reflector/dailyco_api/client.py
@@ -7,8 +7,7 @@ Reference: https://docs.daily.co/reference/rest-api
 """

 from http import HTTPStatus
-from typing import Any, Literal
-from uuid import UUID
+from typing import Any

 import httpx
 import structlog
@@ -33,8 +32,6 @@ from .responses import (

 logger = structlog.get_logger(__name__)

-RecordingType = Literal["cloud", "raw-tracks"]
-

 class DailyApiError(Exception):
    """Daily.co API error with full request/response context."""
@@ -398,38 +395,6 @@ class DailyApiClient:

        return [RecordingResponse(**r) for r in data["data"]]

-    async def start_recording(
-        self,
-        room_name: NonEmptyString,
-        recording_type: RecordingType,
-        instance_id: UUID,
-    ) -> dict[str, Any]:
-        """Start recording via REST API.
-
-        Reference: https://docs.daily.co/reference/rest-api/rooms/recordings/start
-
-        Args:
-            room_name: Daily.co room name
-            recording_type: Recording type
-            instance_id: UUID for this recording session
-
-        Returns:
-            Recording start confirmation from Daily.co API
-
-        Raises:
-            DailyApiError: If API request fails
-        """
-        client = await self._get_client()
-        response = await client.post(
-            f"{self.base_url}/rooms/{room_name}/recordings/start",
-            headers=self.headers,
-            json={
-                "type": recording_type,
-                "instanceId": str(instance_id),
-            },
-        )
-        return await self._handle_response(response, "start_recording")
-
    # ============================================================================
    # MEETING TOKENS
    # ============================================================================
--- a/server/reflector/dailyco_api/instance_id.py
+++ b/server/reflector/dailyco_api/instance_id.py
@@ -1,37 +0,0 @@
-"""
-Daily.co recording instanceId generation utilities.
-
-Deterministic instance ID generation for cloud and raw-tracks recordings.
-MUST match frontend logic
-"""
-
-from uuid import UUID, uuid5
-
-from reflector.utils.string import NonEmptyString
-
-# Namespace UUID for UUIDv5 generation of raw-tracks instanceIds
-# DO NOT CHANGE: Breaks instanceId determinism across deployments and frontend/backend matching
-RAW_TRACKS_NAMESPACE = UUID("a1b2c3d4-e5f6-7890-abcd-ef1234567890")
-
-
-def generate_cloud_instance_id(meeting_id: NonEmptyString) -> UUID:
-    """
-    Generate instanceId for cloud recording.
-
-    Cloud recordings use meeting ID directly as instanceId.
-    This ensures each meeting has one unique cloud recording.
-    """
-    return UUID(meeting_id)
-
-
-def generate_raw_tracks_instance_id(meeting_id: NonEmptyString) -> UUID:
-    """
-    Generate instanceId for raw-tracks recording.
-
-    Raw-tracks recordings use UUIDv5(meeting_id, namespace) to ensure
-    different instanceId from cloud while remaining deterministic.
-
-    Daily.co requires cloud and raw-tracks to have different instanceIds
-    for concurrent recording.
-    """
-    return uuid5(RAW_TRACKS_NAMESPACE, meeting_id)
--- a/server/reflector/dailyco_api/requests.py
+++ b/server/reflector/dailyco_api/requests.py
@@ -88,6 +88,13 @@ class MeetingTokenProperties(BaseModel):
    is_owner: bool = Field(
        default=False, description="Grant owner privileges to token holder"
    )
+    start_cloud_recording: bool = Field(
+        default=False, description="Automatically start cloud recording on join"
+    )
+    start_cloud_recording_opts: dict | None = Field(
+        default=None,
+        description="Options for startRecording when start_cloud_recording is true (e.g., maxDuration)",
+    )
    enable_recording_ui: bool = Field(
        default=True, description="Show recording controls in UI"
    )
--- a/server/reflector/dailyco_api/responses.py
+++ b/server/reflector/dailyco_api/responses.py
@@ -116,7 +116,6 @@ class RecordingS3Info(BaseModel):

    bucket_name: NonEmptyString
    bucket_region: NonEmptyString
-    key: NonEmptyString | None = None
    endpoint: NonEmptyString | None = None


@@ -133,9 +132,6 @@ class RecordingResponse(BaseModel):
    id: NonEmptyString = Field(description="Recording identifier")
    room_name: NonEmptyString = Field(description="Room where recording occurred")
    start_ts: int = Field(description="Recording start timestamp (Unix epoch seconds)")
-    type: Literal["cloud", "raw-tracks"] | None = Field(
-        None, description="Recording type (may be missing from API)"
-    )
    status: RecordingStatus = Field(
        description="Recording status ('in-progress' or 'finished')"
    )
@@ -149,9 +145,6 @@ class RecordingResponse(BaseModel):
        None, description="Token for sharing recording"
    )
    s3: RecordingS3Info | None = Field(None, description="S3 bucket information")
-    s3key: NonEmptyString | None = Field(
-        None, description="S3 key for cloud recordings (top-level field)"
-    )
    tracks: list[DailyTrack] = Field(
        default_factory=list,
        description="Track list for raw-tracks recordings (always array, never null)",
--- a/server/reflector/db/meetings.py
+++ b/server/reflector/db/meetings.py
@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta
+from datetime import datetime
 from typing import Any, Literal

 import sqlalchemy as sa
@@ -9,7 +9,7 @@ from reflector.db import get_database, metadata
 from reflector.db.rooms import Room
 from reflector.schemas.platform import WHEREBY_PLATFORM, Platform
 from reflector.utils import generate_uuid4
-from reflector.utils.string import NonEmptyString, assert_equal
+from reflector.utils.string import assert_equal

 meetings = sa.Table(
    "meeting",
@@ -63,9 +63,6 @@ meetings = sa.Table(
        nullable=False,
        server_default=assert_equal(WHEREBY_PLATFORM, "whereby"),
    ),
-    # Daily.co composed video (Brady Bunch grid layout) - Daily.co only, not Whereby
-    sa.Column("daily_composed_video_s3_key", sa.String, nullable=True),
-    sa.Column("daily_composed_video_duration", sa.Integer, nullable=True),
    sa.Index("idx_meeting_room_id", "room_id"),
    sa.Index("idx_meeting_calendar_event", "calendar_event_id"),
 )
@@ -113,9 +110,6 @@ class Meeting(BaseModel):
    calendar_event_id: str | None = None
    calendar_metadata: dict[str, Any] | None = None
    platform: Platform = WHEREBY_PLATFORM
-    # Daily.co composed video (Brady Bunch grid) - Daily.co only
-    daily_composed_video_s3_key: str | None = None
-    daily_composed_video_duration: int | None = None


 class MeetingController:
@@ -177,90 +171,6 @@ class MeetingController:
            return None
        return Meeting(**result)

-    async def get_by_room_name_all(self, room_name: str) -> list[Meeting]:
-        """Get all meetings for a room name (not just most recent)."""
-        query = meetings.select().where(meetings.c.room_name == room_name)
-        results = await get_database().fetch_all(query)
-        return [Meeting(**r) for r in results]
-
-    async def get_by_room_name_and_time(
-        self,
-        room_name: NonEmptyString,
-        recording_start: datetime,
-        time_window_hours: int = 168,
-    ) -> Meeting | None:
-        """
-        Get meeting by room name closest to recording timestamp.
-
-        HACK ALERT: Daily.co doesn't return instanceId in recordings API response,
-        and mtgSessionId is separate from our instanceId. Time-based matching is
-        the least-bad workaround.
-
-        This handles edge case of duplicate room_name values in DB (race conditions,
-        double-clicks, etc.) by matching based on temporal proximity.
-
-        Algorithm:
-        1. Find meetings within time_window_hours of recording_start
-        2. Return meeting with start_date closest to recording_start
-        3. If tie, return first by meeting.id (deterministic)
-
-        Args:
-            room_name: Daily.co room name from recording
-            recording_start: Timezone-aware datetime from recording.start_ts
-            time_window_hours: Search window (default 168 = 1 week)
-
-        Returns:
-            Meeting closest to recording timestamp, or None if no matches
-
-        Failure modes:
-        - Multiple meetings in same room within ~5 minutes: picks closest
-        - All meetings outside time window: returns None
-        - Clock skew between Daily.co and DB: 1-week window tolerates this
-
-        Why 1 week window:
-        - Handles webhook failures (recording discovered days later)
-        - Tolerates clock skew
-        - Rejects unrelated meetings from weeks ago
-
-        """
-        # Validate timezone-aware datetime
-        if recording_start.tzinfo is None:
-            raise ValueError(
-                f"recording_start must be timezone-aware, got naive datetime: {recording_start}"
-            )
-
-        window_start = recording_start - timedelta(hours=time_window_hours)
-        window_end = recording_start + timedelta(hours=time_window_hours)
-
-        query = (
-            meetings.select()
-            .where(
-                sa.and_(
-                    meetings.c.room_name == room_name,
-                    meetings.c.start_date >= window_start,
-                    meetings.c.start_date <= window_end,
-                )
-            )
-            .order_by(meetings.c.start_date)
-        )
-
-        results = await get_database().fetch_all(query)
-        if not results:
-            return None
-
-        candidates = [Meeting(**r) for r in results]
-
-        # Find meeting with start_date closest to recording_start
-        closest = min(
-            candidates,
-            key=lambda m: (
-                abs((m.start_date - recording_start).total_seconds()),
-                m.id,  # Tie-breaker: deterministic by UUID
-            ),
-        )
-
-        return closest
-
    async def get_active(self, room: Room, current_time: datetime) -> Meeting | None:
        """
        Get latest active meeting for a room.
@@ -350,44 +260,6 @@ class MeetingController:
        query = meetings.update().where(meetings.c.id == meeting_id).values(**kwargs)
        await get_database().execute(query)

-    async def set_cloud_recording_if_missing(
-        self,
-        meeting_id: NonEmptyString,
-        s3_key: NonEmptyString,
-        duration: int,
-    ) -> bool:
-        """
-        Set cloud recording only if not already set.
-
-        Returns True if updated, False if already set.
-        Prevents webhook/polling race condition via atomic WHERE clause.
-        """
-        # Check current value before update to detect actual change
-        meeting_before = await self.get_by_id(meeting_id)
-        if not meeting_before:
-            return False
-
-        was_null = meeting_before.daily_composed_video_s3_key is None
-
-        query = (
-            meetings.update()
-            .where(
-                sa.and_(
-                    meetings.c.id == meeting_id,
-                    meetings.c.daily_composed_video_s3_key.is_(None),
-                )
-            )
-            .values(
-                daily_composed_video_s3_key=s3_key,
-                daily_composed_video_duration=duration,
-            )
-        )
-        await get_database().execute(query)
-
-        # Return True only if value was NULL before (actual update occurred)
-        # If was_null=False, the WHERE clause prevented the update
-        return was_null
-
    async def increment_num_clients(self, meeting_id: str) -> None:
        """Atomically increment participant count."""
        query = (
--- a/server/reflector/db/recordings.py
+++ b/server/reflector/db/recordings.py
@@ -7,7 +7,6 @@ from sqlalchemy import or_

 from reflector.db import get_database, metadata
 from reflector.utils import generate_uuid4
-from reflector.utils.string import NonEmptyString

 recordings = sa.Table(
    "recording",
@@ -72,19 +71,6 @@ class RecordingController:
        query = recordings.delete().where(recordings.c.id == id)
        await get_database().execute(query)

-    async def set_meeting_id(
-        self,
-        recording_id: NonEmptyString,
-        meeting_id: NonEmptyString,
-    ) -> None:
-        """Link recording to meeting."""
-        query = (
-            recordings.update()
-            .where(recordings.c.id == recording_id)
-            .values(meeting_id=meeting_id)
-        )
-        await get_database().execute(query)
-
    # no check for existence
    async def get_by_ids(self, recording_ids: list[str]) -> list[Recording]:
        if not recording_ids:
--- a/server/reflector/db/rooms.py
+++ b/server/reflector/db/rooms.py
@@ -58,7 +58,7 @@ rooms = sqlalchemy.Table(
        nullable=False,
    ),
    sqlalchemy.Column(
-        "use_celery",
+        "use_hatchet",
        sqlalchemy.Boolean,
        nullable=False,
        server_default=false(),
@@ -97,7 +97,7 @@ class Room(BaseModel):
    ics_last_sync: datetime | None = None
    ics_last_etag: str | None = None
    platform: Platform = Field(default_factory=lambda: settings.DEFAULT_VIDEO_PLATFORM)
-    use_celery: bool = False
+    use_hatchet: bool = False
    skip_consent: bool = False


--- a/server/reflector/hatchet/run_workers_cpu.py
+++ b/server/reflector/hatchet/run_workers_cpu.py
@@ -12,9 +12,14 @@ from reflector.hatchet.workflows.daily_multitrack_pipeline import (
    daily_multitrack_pipeline,
 )
 from reflector.logger import logger
+from reflector.settings import settings


 def main():
+    if not settings.HATCHET_ENABLED:
+        logger.error("HATCHET_ENABLED is False, not starting CPU workers")
+        return
+
    hatchet = HatchetClientManager.get_client()

    logger.info(
--- a/server/reflector/hatchet/run_workers_llm.py
+++ b/server/reflector/hatchet/run_workers_llm.py
@@ -11,6 +11,7 @@ from reflector.hatchet.workflows.subject_processing import subject_workflow
 from reflector.hatchet.workflows.topic_chunk_processing import topic_chunk_workflow
 from reflector.hatchet.workflows.track_processing import track_workflow
 from reflector.logger import logger
+from reflector.settings import settings

 SLOTS = 10
 WORKER_NAME = "llm-worker-pool"
@@ -18,6 +19,10 @@ POOL = "llm-io"


 def main():
+    if not settings.HATCHET_ENABLED:
+        logger.error("HATCHET_ENABLED is False, not starting LLM workers")
+        return
+
    hatchet = HatchetClientManager.get_client()

    logger.info(
--- a/server/reflector/hatchet/workflows/daily_multitrack_pipeline.py
+++ b/server/reflector/hatchet/workflows/daily_multitrack_pipeline.py
@@ -489,7 +489,7 @@ async def process_tracks(input: PipelineInput, ctx: Context) -> ProcessTracksRes
 )
@with_error_handling(TaskName.MIXDOWN_TRACKS)
 async def mixdown_tracks(input: PipelineInput, ctx: Context) -> MixdownResult:
-    """Mix all padded tracks into single audio file using PyAV (same as Celery)."""
+    """Mix all padded tracks into single audio file using PyAV or Modal backend."""
    ctx.log("mixdown_tracks: mixing padded tracks into single audio file")

    track_result = ctx.task_output(process_tracks)
@@ -513,7 +513,7 @@ async def mixdown_tracks(input: PipelineInput, ctx: Context) -> MixdownResult:

    storage = _spawn_storage()

-    # Presign URLs on demand (avoids stale URLs on workflow replay)
+    # Presign URLs for padded tracks (same expiration for both backends)
    padded_urls = []
    for track_info in padded_tracks:
        if track_info.key:
@@ -534,33 +534,104 @@ async def mixdown_tracks(input: PipelineInput, ctx: Context) -> MixdownResult:
        logger.error("Mixdown failed - no decodable audio frames found")
        raise ValueError("No decodable audio frames in any track")

-    output_path = tempfile.mktemp(suffix=".mp3")
-    duration_ms_callback_capture_container = [0.0]
+    output_key = f"{input.transcript_id}/audio.mp3"

-    async def capture_duration(d):
-        duration_ms_callback_capture_container[0] = d
+    # Conditional: Modal or local backend
+    if settings.MIXDOWN_BACKEND == "modal":
+        ctx.log("mixdown_tracks: using Modal backend")

-    writer = AudioFileWriterProcessor(path=output_path, on_duration=capture_duration)
+        # Presign PUT URL for output (Modal will upload directly)
+        output_url = await storage.get_file_url(
+            output_key,
+            operation="put_object",
+            expires_in=PRESIGNED_URL_EXPIRATION_SECONDS,
+        )

-    await mixdown_tracks_pyav(
-        valid_urls,
-        writer,
-        target_sample_rate,
-        offsets_seconds=None,
-        logger=logger,
-        progress_callback=make_audio_progress_logger(ctx, TaskName.MIXDOWN_TRACKS),
-        expected_duration_sec=recording_duration if recording_duration > 0 else None,
-    )
-    await writer.flush()
+        from reflector.processors.audio_mixdown_modal import (  # noqa: PLC0415
+            AudioMixdownModalProcessor,
+        )

-    file_size = Path(output_path).stat().st_size
-    storage_path = f"{input.transcript_id}/audio.mp3"
+        try:
+            processor = AudioMixdownModalProcessor()
+            result = await processor.mixdown(
+                track_urls=valid_urls,
+                output_url=output_url,
+                target_sample_rate=target_sample_rate,
+                expected_duration_sec=recording_duration
+                if recording_duration > 0
+                else None,
+            )
+            duration_ms = result.duration_ms
+            tracks_mixed = result.tracks_mixed

-    with open(output_path, "rb") as mixed_file:
-        await storage.put_file(storage_path, mixed_file)
+            ctx.log(
+                f"mixdown_tracks: Modal returned duration={duration_ms}ms, tracks={tracks_mixed}"
+            )
+        except httpx.HTTPStatusError as e:
+            error_detail = e.response.text if hasattr(e.response, "text") else str(e)
+            logger.error(
+                "[Hatchet] Modal mixdown HTTP error",
+                transcript_id=input.transcript_id,
+                status_code=e.response.status_code if hasattr(e, "response") else None,
+                error=error_detail,
+            )
+            raise RuntimeError(
+                f"Modal mixdown failed with HTTP {e.response.status_code}: {error_detail}"
+            )
+        except httpx.TimeoutException:
+            logger.error(
+                "[Hatchet] Modal mixdown timeout",
+                transcript_id=input.transcript_id,
+                timeout=settings.MIXDOWN_TIMEOUT,
+            )
+            raise RuntimeError(
+                f"Modal mixdown timeout after {settings.MIXDOWN_TIMEOUT}s"
+            )
+        except ValueError as e:
+            logger.error(
+                "[Hatchet] Modal mixdown validation error",
+                transcript_id=input.transcript_id,
+                error=str(e),
+            )
+            raise
+    else:
+        ctx.log("mixdown_tracks: using local backend")

-    Path(output_path).unlink(missing_ok=True)
+        # Existing local implementation
+        output_path = tempfile.mktemp(suffix=".mp3")
+        duration_ms_callback_capture_container = [0.0]

+        async def capture_duration(d):
+            duration_ms_callback_capture_container[0] = d
+
+        writer = AudioFileWriterProcessor(
+            path=output_path, on_duration=capture_duration
+        )
+
+        await mixdown_tracks_pyav(
+            valid_urls,
+            writer,
+            target_sample_rate,
+            offsets_seconds=None,
+            logger=logger,
+            progress_callback=make_audio_progress_logger(ctx, TaskName.MIXDOWN_TRACKS),
+            expected_duration_sec=recording_duration
+            if recording_duration > 0
+            else None,
+        )
+        await writer.flush()
+
+        file_size = Path(output_path).stat().st_size
+        with open(output_path, "rb") as mixed_file:
+            await storage.put_file(output_key, mixed_file)
+
+        Path(output_path).unlink(missing_ok=True)
+        duration_ms = duration_ms_callback_capture_container[0]
+        tracks_mixed = len(valid_urls)
+
+        ctx.log(f"mixdown_tracks: local mixdown uploaded {file_size} bytes")
+
+    # Update DB (same for both backends)
    async with fresh_db_connection():
        from reflector.db.transcripts import transcripts_controller  # noqa: PLC0415

@@ -570,12 +641,12 @@ async def mixdown_tracks(input: PipelineInput, ctx: Context) -> MixdownResult:
                transcript, {"audio_location": "storage"}
            )

-    ctx.log(f"mixdown_tracks complete: uploaded {file_size} bytes to {storage_path}")
+    ctx.log(f"mixdown_tracks complete: uploaded to {output_key}")

    return MixdownResult(
-        audio_key=storage_path,
-        duration=duration_ms_callback_capture_container[0],
-        tracks_mixed=len(valid_urls),
+        audio_key=output_key,
+        duration=duration_ms,
+        tracks_mixed=tracks_mixed,
    )


@@ -1095,7 +1166,7 @@ async def identify_action_items(


@daily_multitrack_pipeline.task(
-    parents=[generate_title, generate_recap, identify_action_items],
+    parents=[generate_waveform, generate_title, generate_recap, identify_action_items],
    execution_timeout=timedelta(seconds=TIMEOUT_SHORT),
    retries=3,
 )
@@ -1149,8 +1220,8 @@ async def finalize(input: PipelineInput, ctx: Context) -> FinalizeResult:
            transcript,
            "TRANSCRIPT",
            TranscriptText(
-                text="",
-                translation=None,
+                text=merged_transcript.text,
+                translation=merged_transcript.translation,
            ),
            logger=logger,
        )
@@ -1347,34 +1418,14 @@ async def send_webhook(input: PipelineInput, ctx: Context) -> WebhookResult:
            f"participants={len(payload.transcript.participants)})"
        )

-        try:
-            response = await send_webhook_request(
-                url=room.webhook_url,
-                payload=payload,
-                event_type="transcript.completed",
-                webhook_secret=room.webhook_secret,
-                timeout=30.0,
-            )
+        response = await send_webhook_request(
+            url=room.webhook_url,
+            payload=payload,
+            event_type="transcript.completed",
+            webhook_secret=room.webhook_secret,
+            timeout=30.0,
+        )

-            ctx.log(f"send_webhook complete: status_code={response.status_code}")
-            return WebhookResult(webhook_sent=True, response_code=response.status_code)
+        ctx.log(f"send_webhook complete: status_code={response.status_code}")

-        except httpx.HTTPStatusError as e:
-            ctx.log(
-                f"send_webhook failed (HTTP {e.response.status_code}), continuing anyway"
-            )
-            return WebhookResult(
-                webhook_sent=False, response_code=e.response.status_code
-            )
-
-        except httpx.ConnectError as e:
-            ctx.log(f"send_webhook failed (connection error), continuing anyway: {e}")
-            return WebhookResult(webhook_sent=False)
-
-        except httpx.TimeoutException as e:
-            ctx.log(f"send_webhook failed (timeout), continuing anyway: {e}")
-            return WebhookResult(webhook_sent=False)
-
-        except Exception as e:
-            ctx.log(f"send_webhook unexpected error, continuing anyway: {e}")
-            return WebhookResult(webhook_sent=False)
+        return WebhookResult(webhook_sent=True, response_code=response.status_code)
--- a/server/reflector/processors/audio_mixdown_modal.py
+++ b/server/reflector/processors/audio_mixdown_modal.py
@@ -0,0 +1,89 @@
+"""
+Modal.com backend for audio mixdown.
+
+Uses Modal's CPU containers to offload audio mixing from Hatchet workers.
+Communicates via presigned S3 URLs for both input and output.
+"""
+
+import httpx
+from pydantic import BaseModel
+
+from reflector.settings import settings
+
+
+class MixdownResponse(BaseModel):
+    """Response from Modal mixdown endpoint."""
+
+    duration_ms: float
+    tracks_mixed: int
+    audio_uploaded: bool
+
+
+class AudioMixdownModalProcessor:
+    """Audio mixdown processor using Modal.com CPU backend.
+
+    Sends track URLs (presigned GET) and output URL (presigned PUT) to Modal.
+    Modal handles download, mixdown via PyAV, and upload.
+    """
+
+    def __init__(self, modal_api_key: str | None = None):
+        if not settings.MIXDOWN_URL:
+            raise ValueError("MIXDOWN_URL required to use AudioMixdownModalProcessor")
+
+        self.mixdown_url = settings.MIXDOWN_URL + "/v1"
+        self.timeout = settings.MIXDOWN_TIMEOUT
+        self.modal_api_key = modal_api_key or settings.MIXDOWN_MODAL_API_KEY
+
+        if not self.modal_api_key:
+            raise ValueError(
+                "MIXDOWN_MODAL_API_KEY required to use AudioMixdownModalProcessor"
+            )
+
+    async def mixdown(
+        self,
+        track_urls: list[str],
+        output_url: str,
+        target_sample_rate: int,
+        expected_duration_sec: float | None = None,
+    ) -> MixdownResponse:
+        """Mix multiple audio tracks via Modal backend.
+
+        Args:
+            track_urls: List of presigned GET URLs for audio tracks (non-empty)
+            output_url: Presigned PUT URL for output MP3
+            target_sample_rate: Sample rate for output (Hz, must be positive)
+            expected_duration_sec: Optional fallback duration if container metadata unavailable
+
+        Returns:
+            MixdownResponse with duration_ms, tracks_mixed, audio_uploaded
+
+        Raises:
+            ValueError: If track_urls is empty or target_sample_rate invalid
+            httpx.HTTPStatusError: On HTTP errors (404, 403, 500, etc.)
+            httpx.TimeoutException: On timeout
+        """
+        # Validate inputs
+        if not track_urls:
+            raise ValueError("track_urls cannot be empty")
+        if target_sample_rate <= 0:
+            raise ValueError(
+                f"target_sample_rate must be positive, got {target_sample_rate}"
+            )
+        if expected_duration_sec is not None and expected_duration_sec < 0:
+            raise ValueError(
+                f"expected_duration_sec cannot be negative, got {expected_duration_sec}"
+            )
+
+        async with httpx.AsyncClient(timeout=self.timeout) as client:
+            response = await client.post(
+                f"{self.mixdown_url}/audio/mixdown",
+                headers={"Authorization": f"Bearer {self.modal_api_key}"},
+                json={
+                    "track_urls": track_urls,
+                    "output_url": output_url,
+                    "target_sample_rate": target_sample_rate,
+                    "expected_duration_sec": expected_duration_sec,
+                },
+            )
+            response.raise_for_status()
+            return MixdownResponse(**response.json())
--- a/server/reflector/services/ics_sync.py
+++ b/server/reflector/services/ics_sync.py
@@ -319,6 +319,21 @@ class ICSSyncService:
            calendar = self.fetch_service.parse_ics(ics_content)

            content_hash = hashlib.md5(ics_content.encode()).hexdigest()
+            if room.ics_last_etag == content_hash:
+                logger.info("No changes in ICS for room", room_id=room.id)
+                room_url = f"{settings.UI_BASE_URL}/{room.name}"
+                events, total_events = self.fetch_service.extract_room_events(
+                    calendar, room.name, room_url
+                )
+                return {
+                    "status": SyncStatus.UNCHANGED,
+                    "hash": content_hash,
+                    "events_found": len(events),
+                    "total_events": total_events,
+                    "events_created": 0,
+                    "events_updated": 0,
+                    "events_deleted": 0,
+                }

            # Extract matching events
            room_url = f"{settings.UI_BASE_URL}/{room.name}"
@@ -356,44 +371,6 @@ class ICSSyncService:
        time_since_sync = datetime.now(timezone.utc) - room.ics_last_sync
        return time_since_sync.total_seconds() >= room.ics_fetch_interval

-    def _event_data_changed(self, existing: CalendarEvent, new_data: EventData) -> bool:
-        """Check if event data has changed by comparing relevant fields.
-
-        IMPORTANT: When adding fields to CalendarEvent/EventData, update this method
-        and the _COMPARED_FIELDS set below for runtime validation.
-        """
-        # Fields that come from ICS and should trigger updates when changed
-        _COMPARED_FIELDS = {
-            "title",
-            "description",
-            "start_time",
-            "end_time",
-            "location",
-            "attendees",
-            "ics_raw_data",
-        }
-
-        # Runtime exhaustiveness check: ensure we're comparing all EventData fields
-        event_data_fields = set(EventData.__annotations__.keys()) - {"ics_uid"}
-        if event_data_fields != _COMPARED_FIELDS:
-            missing = event_data_fields - _COMPARED_FIELDS
-            extra = _COMPARED_FIELDS - event_data_fields
-            raise RuntimeError(
-                f"_event_data_changed() field mismatch: "
-                f"missing={missing}, extra={extra}. "
-                f"Update the comparison logic when adding/removing fields."
-            )
-
-        return (
-            existing.title != new_data["title"]
-            or existing.description != new_data["description"]
-            or existing.start_time != new_data["start_time"]
-            or existing.end_time != new_data["end_time"]
-            or existing.location != new_data["location"]
-            or existing.attendees != new_data["attendees"]
-            or existing.ics_raw_data != new_data["ics_raw_data"]
-        )
-
    async def _sync_events_to_database(
        self, room_id: str, events: list[EventData]
    ) -> SyncStats:
@@ -409,14 +386,11 @@ class ICSSyncService:
            )

            if existing:
-                # Only count as updated if data actually changed
-                if self._event_data_changed(existing, event_data):
-                    updated += 1
-                    await calendar_events_controller.upsert(calendar_event)
+                updated += 1
            else:
                created += 1
-                await calendar_events_controller.upsert(calendar_event)

+            await calendar_events_controller.upsert(calendar_event)
            current_ics_uids.append(event_data["ics_uid"])

        # Soft delete events that are no longer in calendar
--- a/server/reflector/services/transcript_process.py
+++ b/server/reflector/services/transcript_process.py
@@ -11,7 +11,7 @@ from typing import Literal, Union, assert_never

 import celery
 from celery.result import AsyncResult
-from hatchet_sdk.clients.rest.exceptions import ApiException, NotFoundException
+from hatchet_sdk.clients.rest.exceptions import ApiException
 from hatchet_sdk.clients.rest.models import V1TaskStatus

 from reflector.db.recordings import recordings_controller
@@ -23,6 +23,7 @@ from reflector.pipelines.main_file_pipeline import task_pipeline_file_process
 from reflector.pipelines.main_multitrack_pipeline import (
    task_pipeline_multitrack_process,
 )
+from reflector.settings import settings
 from reflector.utils.string import NonEmptyString


@@ -101,8 +102,8 @@ async def validate_transcript_for_processing(
    if transcript.locked:
        return ValidationLocked(detail="Recording is locked")

-    # Check if recording is ready for processing
-    if transcript.status == "idle" and not transcript.workflow_run_id:
+    # hatchet is idempotent anyways + if it wasn't dispatched successfully
+    if transcript.status == "idle" and not settings.HATCHET_ENABLED:
        return ValidationNotReady(detail="Recording is not ready for processing")

    # Check Celery tasks
@@ -115,8 +116,7 @@ async def validate_transcript_for_processing(
    ):
        return ValidationAlreadyScheduled(detail="already running")

-    # Check Hatchet workflow status if workflow_run_id exists
-    if transcript.workflow_run_id:
+    if settings.HATCHET_ENABLED and transcript.workflow_run_id:
        try:
            status = await HatchetClientManager.get_workflow_run_status(
                transcript.workflow_run_id
@@ -181,16 +181,19 @@ async def dispatch_transcript_processing(
    Returns AsyncResult for Celery tasks, None for Hatchet workflows.
    """
    if isinstance(config, MultitrackProcessingConfig):
-        use_celery = False
+        # Check if room has use_hatchet=True (overrides env vars)
+        room_forces_hatchet = False
        if config.room_id:
            room = await rooms_controller.get_by_id(config.room_id)
-            use_celery = room.use_celery if room else False
+            room_forces_hatchet = room.use_hatchet if room else False

-        use_hatchet = not use_celery
+        # Start durable workflow if enabled (Hatchet)
+        # and if room has use_hatchet=True
+        use_hatchet = settings.HATCHET_ENABLED and room_forces_hatchet

-        if use_celery:
+        if room_forces_hatchet:
            logger.info(
-                "Room uses legacy Celery processing",
+                "Room forces Hatchet workflow",
                room_id=config.room_id,
                transcript_id=config.transcript_id,
            )
@@ -212,39 +215,24 @@ async def dispatch_transcript_processing(
                    )
                    return None
                else:
-                    # Workflow can't replay (CANCELLED, COMPLETED, or 404 deleted)
+                    # Workflow exists but can't replay (CANCELLED, COMPLETED, etc.)
                    # Log and proceed to start new workflow
-                    try:
-                        status = await HatchetClientManager.get_workflow_run_status(
-                            transcript.workflow_run_id
-                        )
-                        logger.info(
-                            "Old workflow not replayable, starting new",
-                            old_workflow_id=transcript.workflow_run_id,
-                            old_status=status.value,
-                        )
-                    except NotFoundException:
-                        # Workflow deleted from Hatchet but ID still in DB
-                        logger.info(
-                            "Old workflow not found in Hatchet, starting new",
-                            old_workflow_id=transcript.workflow_run_id,
-                        )
-
-            # Force: cancel old workflow if exists
-            if force and transcript and transcript.workflow_run_id:
-                try:
-                    await HatchetClientManager.cancel_workflow(
+                    status = await HatchetClientManager.get_workflow_run_status(
                        transcript.workflow_run_id
                    )
                    logger.info(
-                        "Cancelled old workflow (--force)",
-                        workflow_id=transcript.workflow_run_id,
-                    )
-                except NotFoundException:
-                    logger.info(
-                        "Old workflow already deleted (--force)",
-                        workflow_id=transcript.workflow_run_id,
+                        "Old workflow not replayable, starting new",
+                        old_workflow_id=transcript.workflow_run_id,
+                        old_status=status.value,
                    )
+
+            # Force: cancel old workflow if exists
+            if force and transcript and transcript.workflow_run_id:
+                await HatchetClientManager.cancel_workflow(transcript.workflow_run_id)
+                logger.info(
+                    "Cancelled old workflow (--force)",
+                    workflow_id=transcript.workflow_run_id,
+                )
                await transcripts_controller.update(
                    transcript, {"workflow_run_id": None}
                )
--- a/server/reflector/settings.py
+++ b/server/reflector/settings.py
@@ -98,6 +98,17 @@ class Settings(BaseSettings):
    # Diarization: local pyannote.audio
    DIARIZATION_PYANNOTE_AUTH_TOKEN: str | None = None

+    # Audio Mixdown
+    # backends:
+    #   - local: in-process PyAV mixdown (runs in same process as Hatchet worker)
+    #   - modal: HTTP API client to Modal.com CPU container
+    MIXDOWN_BACKEND: str = "local"
+    MIXDOWN_URL: str | None = None
+    MIXDOWN_TIMEOUT: int = 900  # 15 minutes
+
+    # Mixdown: modal backend
+    MIXDOWN_MODAL_API_KEY: str | None = None
+
    # Sentry
    SENTRY_DSN: str | None = None

@@ -158,10 +169,19 @@ class Settings(BaseSettings):
    ZULIP_API_KEY: str | None = None
    ZULIP_BOT_EMAIL: str | None = None

-    # Hatchet workflow orchestration (always enabled for multitrack processing)
+    # Durable workflow orchestration
+    # Provider: "hatchet" (or "none" to disable)
+    DURABLE_WORKFLOW_PROVIDER: str = "none"
+
+    # Hatchet workflow orchestration
    HATCHET_CLIENT_TOKEN: str | None = None
    HATCHET_CLIENT_TLS_STRATEGY: str = "none"  # none, tls, mtls
    HATCHET_DEBUG: bool = False

+    @property
+    def HATCHET_ENABLED(self) -> bool:
+        """True if Hatchet is the active provider."""
+        return self.DURABLE_WORKFLOW_PROVIDER == "hatchet"
+

 settings = Settings()
--- a/server/reflector/video_platforms/daily.py
+++ b/server/reflector/video_platforms/daily.py
@@ -1,5 +1,4 @@
 from datetime import datetime
-from uuid import UUID

 from reflector.dailyco_api import (
    CreateMeetingTokenRequest,
@@ -13,11 +12,9 @@ from reflector.dailyco_api import (
    RoomProperties,
    verify_webhook_signature,
 )
-from reflector.dailyco_api import RecordingType as DailyRecordingType
 from reflector.db.daily_participant_sessions import (
    daily_participant_sessions_controller,
 )
-from reflector.db.meetings import meetings_controller
 from reflector.db.rooms import Room
 from reflector.logger import logger
 from reflector.storage import get_dailyco_storage
@@ -61,9 +58,10 @@ class DailyClient(VideoPlatformClient):
        enable_recording = None
        if room.recording_type == self.RECORDING_LOCAL:
            enable_recording = "local"
-        elif room.recording_type == self.RECORDING_CLOUD:
-            # Don't set enable_recording - recordings started via REST API (not auto-start)
-            enable_recording = None
+        elif (
+            room.recording_type == self.RECORDING_CLOUD
+        ):  # daily "cloud" is not our "cloud"
+            enable_recording = "raw-tracks"

        properties = RoomProperties(
            enable_recording=enable_recording,
@@ -108,6 +106,8 @@ class DailyClient(VideoPlatformClient):
        Daily.co doesn't provide historical session API, so we query our database
        where participant.joined/left webhooks are stored.
        """
+        from reflector.db.meetings import meetings_controller  # noqa: PLC0415
+
        meeting = await meetings_controller.get_by_room_name(room_name)
        if not meeting:
            return []
@@ -179,14 +179,21 @@ class DailyClient(VideoPlatformClient):
    async def create_meeting_token(
        self,
        room_name: DailyRoomName,
+        start_cloud_recording: bool,
        enable_recording_ui: bool,
        user_id: NonEmptyString | None = None,
        is_owner: bool = False,
        max_recording_duration_seconds: int | None = None,
    ) -> NonEmptyString:
+        start_cloud_recording_opts = None
+        if start_cloud_recording and max_recording_duration_seconds:
+            start_cloud_recording_opts = {"maxDuration": max_recording_duration_seconds}
+
        properties = MeetingTokenProperties(
            room_name=room_name,
            user_id=user_id,
+            start_cloud_recording=start_cloud_recording,
+            start_cloud_recording_opts=start_cloud_recording_opts,
            enable_recording_ui=enable_recording_ui,
            is_owner=is_owner,
        )
@@ -194,23 +201,6 @@ class DailyClient(VideoPlatformClient):
        result = await self._api_client.create_meeting_token(request)
        return result.token

-    async def start_recording(
-        self,
-        room_name: DailyRoomName,
-        recording_type: DailyRecordingType,
-        instance_id: UUID,
-    ) -> dict:
-        """Start recording via Daily.co REST API.
-
-        Args:
-            instance_id: UUID for this recording session - one UUID per "room" in Daily (which is "meeting" in Reflector)
-        """
-        return await self._api_client.start_recording(
-            room_name=room_name,
-            recording_type=recording_type,
-            instance_id=instance_id,
-        )
-
    async def close(self):
        """Clean up API client resources."""
        await self._api_client.close()
--- a/server/reflector/views/daily.py
+++ b/server/reflector/views/daily.py
@@ -19,7 +19,6 @@ from reflector.video_platforms.factory import create_platform_client
 from reflector.worker.process import (
    poll_daily_room_presence_task,
    process_multitrack_recording,
-    store_cloud_recording,
 )

 router = APIRouter()
@@ -175,64 +174,46 @@ async def _handle_recording_started(event: RecordingStartedEvent):
 async def _handle_recording_ready(event: RecordingReadyEvent):
    room_name = event.payload.room_name
    recording_id = event.payload.recording_id
-    recording_type = event.payload.type
+    tracks = event.payload.tracks
+
+    if not tracks:
+        logger.warning(
+            "recording.ready-to-download: missing tracks",
+            room_name=room_name,
+            recording_id=recording_id,
+            payload=event.payload,
+        )
+        return

    logger.info(
        "Recording ready for download",
        room_name=room_name,
        recording_id=recording_id,
-        recording_type=recording_type,
+        num_tracks=len(tracks),
        platform="daily",
    )

    bucket_name = settings.DAILYCO_STORAGE_AWS_BUCKET_NAME
    if not bucket_name:
-        logger.error("DAILYCO_STORAGE_AWS_BUCKET_NAME not configured")
+        logger.error(
+            "DAILYCO_STORAGE_AWS_BUCKET_NAME not configured; cannot process Daily recording"
+        )
        return

-    if recording_type == "cloud":
-        await store_cloud_recording(
-            recording_id=recording_id,
-            room_name=room_name,
-            s3_key=event.payload.s3_key,
-            duration=event.payload.duration,
-            start_ts=event.payload.start_ts,
-            source="webhook",
-        )
+    track_keys = [t.s3Key for t in tracks if t.type == "audio"]

-    elif recording_type == "raw-tracks":
-        tracks = event.payload.tracks
-        if not tracks:
-            logger.warning(
-                "raw-tracks recording: missing tracks array",
-                room_name=room_name,
-                recording_id=recording_id,
-            )
-            return
+    logger.info(
+        "Recording webhook queuing processing",
+        recording_id=recording_id,
+        room_name=room_name,
+    )

-        track_keys = [t.s3Key for t in tracks if t.type == "audio"]
-
-        logger.info(
-            "Raw-tracks recording queuing processing",
-            recording_id=recording_id,
-            room_name=room_name,
-            num_tracks=len(track_keys),
-        )
-
-        process_multitrack_recording.delay(
-            bucket_name=bucket_name,
-            daily_room_name=room_name,
-            recording_id=recording_id,
-            track_keys=track_keys,
-            recording_start_ts=event.payload.start_ts,
-        )
-
-    else:
-        logger.warning(
-            "Unknown recording type",
-            recording_type=recording_type,
-            recording_id=recording_id,
-        )
+    process_multitrack_recording.delay(
+        bucket_name=bucket_name,
+        daily_room_name=room_name,
+        recording_id=recording_id,
+        track_keys=track_keys,
+    )


 async def _handle_recording_error(event: RecordingErrorEvent):
--- a/server/reflector/views/meetings.py
+++ b/server/reflector/views/meetings.py
@@ -1,23 +1,16 @@
-import json
 from datetime import datetime, timezone
-from typing import Annotated, Any, Optional
-from uuid import UUID
+from typing import Annotated, Optional

 from fastapi import APIRouter, Depends, HTTPException, Request
 from pydantic import BaseModel

 import reflector.auth as auth
-from reflector.dailyco_api import RecordingType
-from reflector.dailyco_api.client import DailyApiError
 from reflector.db.meetings import (
    MeetingConsent,
    meeting_consent_controller,
    meetings_controller,
 )
 from reflector.db.rooms import rooms_controller
-from reflector.logger import logger
-from reflector.utils.string import NonEmptyString
-from reflector.video_platforms.factory import create_platform_client

 router = APIRouter()

@@ -80,72 +73,3 @@ async def meeting_deactivate(
    await meetings_controller.update_meeting(meeting_id, is_active=False)

    return {"status": "success", "meeting_id": meeting_id}
-
-
-class StartRecordingRequest(BaseModel):
-    type: RecordingType
-    instanceId: UUID
-
-
-@router.post("/meetings/{meeting_id}/recordings/start")
-async def start_recording(
-    meeting_id: NonEmptyString, body: StartRecordingRequest
-) -> dict[str, Any]:
-    """Start cloud or raw-tracks recording via Daily.co REST API.
-
-    Both cloud and raw-tracks are started via REST API to bypass enable_recording limitation of allowing only 1 recording at a time.
-    Uses different instanceIds for cloud vs raw-tracks (same won't work)
-
-    Note: No authentication required - anonymous users supported. TODO this is a DOS vector
-    """
-    meeting = await meetings_controller.get_by_id(meeting_id)
-    if not meeting:
-        raise HTTPException(status_code=404, detail="Meeting not found")
-
-    log = logger.bind(
-        meeting_id=meeting_id,
-        room_name=meeting.room_name,
-        recording_type=body.type,
-        instance_id=body.instanceId,
-    )
-
-    try:
-        client = create_platform_client("daily")
-        result = await client.start_recording(
-            room_name=meeting.room_name,
-            recording_type=body.type,
-            instance_id=body.instanceId,
-        )
-
-        log.info(f"Started {body.type} recording via REST API")
-
-        return {"status": "ok", "result": result}
-
-    except DailyApiError as e:
-        # Parse Daily.co error response to detect "has an active stream"
-        try:
-            error_body = json.loads(e.response_body)
-            error_info = error_body.get("info", "")
-
-            # "has an active stream" means recording already started by another participant
-            # This is SUCCESS from business logic perspective - return 200
-            if "has an active stream" in error_info:
-                log.info(
-                    f"{body.type} recording already active (started by another participant)"
-                )
-                return {"status": "already_active", "instanceId": str(body.instanceId)}
-        except (json.JSONDecodeError, KeyError):
-            pass  # Fall through to error handling
-
-        # All other Daily.co API errors
-        log.error(f"Failed to start {body.type} recording", error=str(e))
-        raise HTTPException(
-            status_code=500, detail=f"Failed to start recording: {str(e)}"
-        )
-
-    except Exception as e:
-        # Non-Daily.co errors
-        log.error(f"Failed to start {body.type} recording", error=str(e))
-        raise HTTPException(
-            status_code=500, detail=f"Failed to start recording: {str(e)}"
-        )
--- a/server/reflector/views/rooms.py
+++ b/server/reflector/views/rooms.py
@@ -73,8 +73,6 @@ class Meeting(BaseModel):
    calendar_event_id: str | None = None
    calendar_metadata: dict[str, Any] | None = None
    platform: Platform
-    daily_composed_video_s3_key: str | None = None
-    daily_composed_video_duration: int | None = None


 class CreateRoom(BaseModel):
@@ -588,6 +586,7 @@ async def rooms_join_meeting(
        )
        token = await client.create_meeting_token(
            meeting.room_name,
+            start_cloud_recording=meeting.recording_type == "cloud",
            enable_recording_ui=enable_recording_ui,
            user_id=user_id,
            is_owner=user_id == room.user_id,
--- a/server/reflector/worker/app.py
+++ b/server/reflector/worker/app.py
@@ -6,11 +6,6 @@ from celery.schedules import crontab
 from reflector.settings import settings

 logger = structlog.get_logger(__name__)
-
-# Polling intervals (seconds)
-# Webhook-aware: 180s when webhook configured (backup mode), 15s when no webhook (primary discovery)
-POLL_DAILY_RECORDINGS_INTERVAL_SEC = 180.0 if settings.DAILY_WEBHOOK_SECRET else 15.0
-
 if celery.current_app.main != "default":
    logger.info(f"Celery already configured ({celery.current_app})")
    app = celery.current_app
@@ -49,7 +44,7 @@ else:
        },
        "poll_daily_recordings": {
            "task": "reflector.worker.process.poll_daily_recordings",
-            "schedule": POLL_DAILY_RECORDINGS_INTERVAL_SEC,
+            "schedule": 180.0,  # Every 3 minutes (configurable lookback window)
        },
        "trigger_daily_reconciliation": {
            "task": "reflector.worker.process.trigger_daily_reconciliation",
--- a/server/reflector/worker/process.py
+++ b/server/reflector/worker/process.py
@@ -2,7 +2,7 @@ import json
 import os
 import re
 from datetime import datetime, timezone
-from typing import List, Literal
+from typing import List
 from urllib.parse import unquote

 import av
@@ -42,7 +42,6 @@ from reflector.utils.daily import (
    filter_cam_audio_tracks,
    recording_lock_key,
 )
-from reflector.utils.string import NonEmptyString
 from reflector.video_platforms.factory import create_platform_client
 from reflector.video_platforms.whereby_utils import (
    parse_whereby_recording_filename,
@@ -176,18 +175,13 @@ async def process_multitrack_recording(
    daily_room_name: DailyRoomName,
    recording_id: str,
    track_keys: list[str],
-    recording_start_ts: int,
 ):
-    """
-    Process raw-tracks (multitrack) recording from Daily.co.
-    """
    logger.info(
        "Processing multitrack recording",
        bucket=bucket_name,
        room_name=daily_room_name,
        recording_id=recording_id,
        provided_keys=len(track_keys),
-        recording_start_ts=recording_start_ts,
    )

    if not track_keys:
@@ -218,7 +212,7 @@ async def process_multitrack_recording(
        )

        await _process_multitrack_recording_inner(
-            bucket_name, daily_room_name, recording_id, track_keys, recording_start_ts
+            bucket_name, daily_room_name, recording_id, track_keys
        )


@@ -227,18 +221,8 @@ async def _process_multitrack_recording_inner(
    daily_room_name: DailyRoomName,
    recording_id: str,
    track_keys: list[str],
-    recording_start_ts: int,
 ):
-    """
-    Process multitrack recording (first time or reprocessing).
-
-    For first processing (webhook/polling):
-    - Uses recording_start_ts for time-based meeting matching (no instanceId available)
-
-    For reprocessing:
-    - Uses recording.meeting_id directly (already linked during first processing)
-    - recording_start_ts is ignored
-    """
+    """Inner function containing the actual processing logic."""

    tz = timezone.utc
    recorded_at = datetime.now(tz)
@@ -256,53 +240,7 @@ async def _process_multitrack_recording_inner(
            exc_info=True,
        )

-    # Check if recording already exists (reprocessing path)
-    recording = await recordings_controller.get_by_id(recording_id)
-
-    if recording and recording.meeting_id:
-        # Reprocessing: recording exists with meeting already linked
-        meeting = await meetings_controller.get_by_id(recording.meeting_id)
-        if not meeting:
-            logger.error(
-                "Reprocessing: meeting not found for recording - skipping",
-                meeting_id=recording.meeting_id,
-                recording_id=recording_id,
-            )
-            return
-
-        logger.info(
-            "Reprocessing: using existing recording.meeting_id",
-            recording_id=recording_id,
-            meeting_id=meeting.id,
-            room_name=daily_room_name,
-        )
-    else:
-        # First processing: recording doesn't exist, need time-based matching
-        # (Daily.co doesn't return instanceId in API, must match by timestamp)
-        recording_start = datetime.fromtimestamp(recording_start_ts, tz=timezone.utc)
-        meeting = await meetings_controller.get_by_room_name_and_time(
-            room_name=daily_room_name,
-            recording_start=recording_start,
-            time_window_hours=168,  # 1 week
-        )
-        if not meeting:
-            logger.error(
-                "Raw-tracks: no meeting found within 1-week window (time-based match) - skipping",
-                recording_id=recording_id,
-                room_name=daily_room_name,
-                recording_start_ts=recording_start_ts,
-                recording_start=recording_start.isoformat(),
-            )
-            return  # Skip processing, will retry on next poll
-        logger.info(
-            "First processing: found meeting via time-based matching",
-            meeting_id=meeting.id,
-            room_name=daily_room_name,
-            recording_id=recording_id,
-            time_delta_seconds=abs(
-                (meeting.start_date - recording_start).total_seconds()
-            ),
-        )
+    meeting = await meetings_controller.get_by_room_name(daily_room_name)

    room_name_base = extract_base_room_name(daily_room_name)

@@ -310,8 +248,18 @@ async def _process_multitrack_recording_inner(
    if not room:
        raise Exception(f"Room not found: {room_name_base}")

+    if not meeting:
+        raise Exception(f"Meeting not found: {room_name_base}")
+
+    logger.info(
+        "Found existing Meeting for recording",
+        meeting_id=meeting.id,
+        room_name=daily_room_name,
+        recording_id=recording_id,
+    )
+
+    recording = await recordings_controller.get_by_id(recording_id)
    if not recording:
-        # Create recording (only happens during first processing)
        object_key_dir = os.path.dirname(track_keys[0]) if track_keys else ""
        recording = await recordings_controller.create(
            Recording(
@@ -323,19 +271,7 @@ async def _process_multitrack_recording_inner(
                track_keys=track_keys,
            )
        )
-    elif not recording.meeting_id:
-        # Recording exists but meeting_id is null (failed first processing)
-        # Update with meeting from time-based matching
-        await recordings_controller.set_meeting_id(
-            recording_id=recording.id,
-            meeting_id=meeting.id,
-        )
-        recording.meeting_id = meeting.id
-        logger.info(
-            "Updated existing recording with meeting_id",
-            recording_id=recording.id,
-            meeting_id=meeting.id,
-        )
+    # else: Recording already exists; metadata set at creation time

    transcript = await transcripts_controller.get_by_recording_id(recording.id)
    if not transcript:
@@ -351,12 +287,11 @@ async def _process_multitrack_recording_inner(
            room_id=room.id,
        )

-    use_celery = room and room.use_celery
-    use_hatchet = not use_celery
+    use_hatchet = settings.HATCHET_ENABLED and room and room.use_hatchet

-    if use_celery:
+    if room and room.use_hatchet and not settings.HATCHET_ENABLED:
        logger.info(
-            "Room uses legacy Celery processing",
+            "Room forces Hatchet workflow",
            room_id=room.id,
            transcript_id=transcript.id,
        )
@@ -402,11 +337,9 @@ async def poll_daily_recordings():
    """Poll Daily.co API for recordings and process missing ones.

    Fetches latest recordings from Daily.co API (default limit 100), compares with DB,
-    and stores/queues missing recordings:
-    - Cloud recordings: Store S3 key in meeting table
-    - Raw-tracks recordings: Queue multitrack processing
+    and queues processing for recordings not already in DB.

-    Acts as fallback when webhooks active, primary discovery when webhooks unavailable.
+    For each missing recording, uses audio tracks from API response.

    Worker-level locking provides idempotency (see process_multitrack_recording).
    """
@@ -447,222 +380,51 @@ async def poll_daily_recordings():
        )
        return

-    # Separate cloud and raw-tracks recordings
-    cloud_recordings = []
-    raw_tracks_recordings = []
-    for rec in finished_recordings:
-        if rec.type:
-            # Daily.co API returns null type - make sure this assumption stays
-            # If this logs, Daily.co API changed - we can remove inference logic.
-            recording_type = rec.type
-            logger.warning(
-                "Recording has explicit type field from Daily.co API (unexpected, API may have changed)",
-                recording_id=rec.id,
-                room_name=rec.room_name,
-                recording_type=recording_type,
-                has_s3key=bool(rec.s3key),
-                tracks_count=len(rec.tracks),
-            )
-        else:
-            # DAILY.CO API LIMITATION:
-            # GET /recordings response does NOT include type field.
-            # Daily.co docs mention type field exists, but API never returns it.
-            # Verified: 84 recordings from Nov 2025 - Jan 2026 ALL have type=None.
-            #
-            # This is not a recent API change - Daily.co has never returned type.
-            # Must infer from structural properties.
-            #
-            # Inference heuristic (reliable for finished recordings):
-            # - Has tracks array → raw-tracks
-            # - Has s3key but no tracks → cloud
-            # - Neither → failed/incomplete recording
-            if len(rec.tracks) > 0:
-                recording_type = "raw-tracks"
-            elif rec.s3key and len(rec.tracks) == 0:
-                recording_type = "cloud"
-            else:
-                logger.warning(
-                    "Recording has no type, no s3key, and no tracks - likely failed recording",
-                    recording_id=rec.id,
-                    room_name=rec.room_name,
-                    status=rec.status,
-                    duration=rec.duration,
-                    mtg_session_id=rec.mtgSessionId,
-                )
-                continue
-
-        if recording_type == "cloud":
-            cloud_recordings.append(rec)
-        else:
-            raw_tracks_recordings.append(rec)
-
-    logger.debug(
-        "Poll results",
-        total=len(finished_recordings),
-        cloud=len(cloud_recordings),
-        raw_tracks=len(raw_tracks_recordings),
-    )
-
-    # Process cloud recordings
-    await _poll_cloud_recordings(cloud_recordings)
-
-    # Process raw-tracks recordings
-    await _poll_raw_tracks_recordings(raw_tracks_recordings, bucket_name)
-
-
-async def store_cloud_recording(
-    recording_id: NonEmptyString,
-    room_name: NonEmptyString,
-    s3_key: NonEmptyString,
-    duration: int,
-    start_ts: int,
-    source: Literal["webhook", "polling"],
-) -> bool:
-    """
-    Store cloud recording reference in meeting table.
-
-    Common function for both webhook and polling code paths.
-    Uses time-based matching to handle duplicate room_name values.
-
-    Args:
-        recording_id: Daily.co recording ID
-        room_name: Daily.co room name
-        s3_key: S3 key where recording is stored
-        duration: Recording duration in seconds
-        start_ts: Unix timestamp when recording started
-        source: "webhook" or "polling" (for logging)
-
-    Returns:
-        True if stored, False if skipped/failed
-    """
-    recording_start = datetime.fromtimestamp(start_ts, tz=timezone.utc)
-
-    meeting = await meetings_controller.get_by_room_name_and_time(
-        room_name=room_name,
-        recording_start=recording_start,
-        time_window_hours=168,  # 1 week
-    )
-
-    if not meeting:
-        logger.warning(
-            f"Cloud recording ({source}): no meeting found within 1-week window",
-            recording_id=recording_id,
-            room_name=room_name,
-            recording_start_ts=start_ts,
-            recording_start=recording_start.isoformat(),
-        )
-        return False
-
-    success = await meetings_controller.set_cloud_recording_if_missing(
-        meeting_id=meeting.id,
-        s3_key=s3_key,
-        duration=duration,
-    )
-
-    if not success:
-        logger.debug(
-            f"Cloud recording ({source}): already set (race lost)",
-            recording_id=recording_id,
-            room_name=room_name,
-            meeting_id=meeting.id,
-        )
-        return False
-
-    logger.info(
-        f"Cloud recording stored via {source} (time-based match)",
-        meeting_id=meeting.id,
-        recording_id=recording_id,
-        s3_key=s3_key,
-        duration=duration,
-        time_delta_seconds=abs((meeting.start_date - recording_start).total_seconds()),
-    )
-    return True
-
-
-async def _poll_cloud_recordings(cloud_recordings: List[FinishedRecordingResponse]):
-    """
-    Store cloud recordings missing from meeting table via polling.
-
-    Uses time-based matching via store_cloud_recording().
-    """
-    if not cloud_recordings:
-        return
-
-    stored_count = 0
-    for recording in cloud_recordings:
-        # Extract S3 key from recording (cloud recordings use s3key field)
-        s3_key = recording.s3key or (recording.s3.key if recording.s3 else None)
-        if not s3_key:
-            logger.warning(
-                "Cloud recording: missing S3 key",
-                recording_id=recording.id,
-                room_name=recording.room_name,
-            )
-            continue
-
-        stored = await store_cloud_recording(
-            recording_id=recording.id,
-            room_name=recording.room_name,
-            s3_key=s3_key,
-            duration=recording.duration,
-            start_ts=recording.start_ts,
-            source="polling",
-        )
-        if stored:
-            stored_count += 1
-
-    logger.info(
-        "Cloud recording polling complete",
-        total=len(cloud_recordings),
-        stored=stored_count,
-    )
-
-
-async def _poll_raw_tracks_recordings(
-    raw_tracks_recordings: List[FinishedRecordingResponse],
-    bucket_name: str,
-):
-    """Queue raw-tracks recordings missing from DB (existing logic)."""
-    if not raw_tracks_recordings:
-        return
-
-    recording_ids = [rec.id for rec in raw_tracks_recordings]
+    recording_ids = [rec.id for rec in finished_recordings]
    existing_recordings = await recordings_controller.get_by_ids(recording_ids)
    existing_ids = {rec.id for rec in existing_recordings}

    missing_recordings = [
-        rec for rec in raw_tracks_recordings if rec.id not in existing_ids
+        rec for rec in finished_recordings if rec.id not in existing_ids
    ]

    if not missing_recordings:
        logger.debug(
-            "All raw-tracks recordings already in DB",
-            api_count=len(raw_tracks_recordings),
+            "All recordings already in DB",
+            api_count=len(finished_recordings),
            existing_count=len(existing_recordings),
        )
        return

    logger.info(
-        "Found raw-tracks recordings missing from DB",
+        "Found recordings missing from DB",
        missing_count=len(missing_recordings),
-        total_api_count=len(raw_tracks_recordings),
+        total_api_count=len(finished_recordings),
        existing_count=len(existing_recordings),
    )

    for recording in missing_recordings:
        if not recording.tracks:
-            logger.warning(
-                "Finished raw-tracks recording has no tracks (no audio captured)",
-                recording_id=recording.id,
-                room_name=recording.room_name,
-            )
+            if recording.status == "finished":
+                logger.warning(
+                    "Finished recording has no tracks (no audio captured)",
+                    recording_id=recording.id,
+                    room_name=recording.room_name,
+                )
+            else:
+                logger.debug(
+                    "No tracks in recording yet",
+                    recording_id=recording.id,
+                    room_name=recording.room_name,
+                    status=recording.status,
+                )
            continue

        track_keys = [t.s3Key for t in recording.tracks if t.type == "audio"]

        if not track_keys:
            logger.warning(
-                "No audio tracks found in raw-tracks recording",
+                "No audio tracks found in recording (only video tracks)",
                recording_id=recording.id,
                room_name=recording.room_name,
                total_tracks=len(recording.tracks),
@@ -670,7 +432,7 @@ async def _poll_raw_tracks_recordings(
            continue

        logger.info(
-            "Queueing missing raw-tracks recording for processing",
+            "Queueing missing recording for processing",
            recording_id=recording.id,
            room_name=recording.room_name,
            track_count=len(track_keys),
@@ -681,7 +443,6 @@ async def _poll_raw_tracks_recordings(
            daily_room_name=recording.room_name,
            recording_id=recording.id,
            track_keys=track_keys,
-            recording_start_ts=recording.start_ts,
        )


@@ -1049,6 +810,7 @@ async def reprocess_failed_daily_recordings():
                )
                continue

+            # Fetch room to check use_hatchet flag
            room = None
            if meeting.room_id:
                room = await rooms_controller.get_by_id(meeting.room_id)
@@ -1072,10 +834,10 @@ async def reprocess_failed_daily_recordings():
                )
                continue

-            use_celery = room and room.use_celery
-            use_hatchet = not use_celery
+            use_hatchet = settings.HATCHET_ENABLED and room and room.use_hatchet

            if use_hatchet:
+                # Hatchet requires a transcript for workflow_run_id tracking
                if not transcript:
                    logger.warning(
                        "No transcript for Hatchet reprocessing, skipping",
@@ -1121,16 +883,11 @@ async def reprocess_failed_daily_recordings():
                    transcript_status=transcript.status if transcript else None,
                )

-                # For reprocessing, pass actual recording time (though it's ignored - see _process_multitrack_recording_inner)
-                # Reprocessing uses recording.meeting_id directly instead of time-based matching
-                recording_start_ts = int(recording.recorded_at.timestamp())
-
                process_multitrack_recording.delay(
                    bucket_name=bucket_name,
                    daily_room_name=meeting.room_name,
                    recording_id=recording.id,
                    track_keys=recording.track_keys,
-                    recording_start_ts=recording_start_ts,
                )

            reprocessed_count += 1
--- a/server/tests/test_dailyco_instance_id.py
+++ b/server/tests/test_dailyco_instance_id.py
@@ -1,147 +0,0 @@
-"""
-Tests for Daily.co instanceId generation.
-
-Verifies deterministic behavior and frontend/backend consistency.
-"""
-
-import pytest
-
-from reflector.dailyco_api.instance_id import (
-    RAW_TRACKS_NAMESPACE,
-    generate_cloud_instance_id,
-    generate_raw_tracks_instance_id,
-)
-
-
-class TestInstanceIdDeterminism:
-    """Test deterministic generation of instanceIds."""
-
-    def test_cloud_instance_id_is_meeting_id(self):
-        """Cloud instanceId is meeting ID directly (implicitly tests determinism)."""
-        meeting_id = "550e8400-e29b-41d4-a716-446655440000"
-        result1 = generate_cloud_instance_id(meeting_id)
-        result2 = generate_cloud_instance_id(meeting_id)
-        assert str(result1) == meeting_id
-        assert result1 == result2
-
-    def test_raw_tracks_instance_id_deterministic(self):
-        """Raw-tracks instanceId generation is deterministic."""
-        meeting_id = "550e8400-e29b-41d4-a716-446655440000"
-        result1 = generate_raw_tracks_instance_id(meeting_id)
-        result2 = generate_raw_tracks_instance_id(meeting_id)
-        assert result1 == result2
-
-    def test_raw_tracks_different_from_cloud(self):
-        """Raw-tracks instanceId differs from cloud instanceId."""
-        meeting_id = "550e8400-e29b-41d4-a716-446655440000"
-        cloud_id = generate_cloud_instance_id(meeting_id)
-        raw_tracks_id = generate_raw_tracks_instance_id(meeting_id)
-        assert cloud_id != raw_tracks_id
-
-    def test_different_meetings_different_instance_ids(self):
-        """Different meetings generate different instanceIds."""
-        meeting_id1 = "550e8400-e29b-41d4-a716-446655440000"
-        meeting_id2 = "6ba7b810-9dad-11d1-80b4-00c04fd430c8"
-
-        cloud1 = generate_cloud_instance_id(meeting_id1)
-        cloud2 = generate_cloud_instance_id(meeting_id2)
-        assert cloud1 != cloud2
-
-        raw1 = generate_raw_tracks_instance_id(meeting_id1)
-        raw2 = generate_raw_tracks_instance_id(meeting_id2)
-        assert raw1 != raw2
-
-
-class TestFrontendBackendConsistency:
-    """Test that backend matches frontend logic."""
-
-    def test_namespace_matches_frontend(self):
-        """Namespace UUID matches frontend RAW_TRACKS_NAMESPACE constant."""
-        # From www/app/[roomName]/components/DailyRoom.tsx
-        frontend_namespace = "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
-        assert str(RAW_TRACKS_NAMESPACE) == frontend_namespace
-
-    def test_raw_tracks_generation_matches_frontend_logic(self):
-        """Backend UUIDv5 generation matches frontend uuidv5() call."""
-        # Example meeting ID
-        meeting_id = "550e8400-e29b-41d4-a716-446655440000"
-
-        # Backend result
-        backend_result = generate_raw_tracks_instance_id(meeting_id)
-
-        # Expected result from frontend: uuidv5(meeting.id, RAW_TRACKS_NAMESPACE)
-        # Python uuid5 uses (namespace, name) argument order
-        # JavaScript uuid.v5(name, namespace) - same args, different order
-        # Frontend: uuidv5(meeting.id, "a1b2c3d4-e5f6-7890-abcd-ef1234567890")
-        # Backend: uuid5(UUID("a1b2c3d4-e5f6-7890-abcd-ef1234567890"), meeting.id)
-
-        # Verify it's a valid UUID (will raise if not)
-        assert len(str(backend_result)) == 36
-        assert backend_result.version == 5
-
-
-class TestEdgeCases:
-    """Test edge cases and error conditions."""
-
-    def test_invalid_uuid_format_raises(self):
-        """Invalid UUID format raises ValueError."""
-        with pytest.raises(ValueError):
-            generate_cloud_instance_id("not-a-uuid")
-
-    def test_lowercase_uuid_normalized_for_cloud(self):
-        """Cloud instanceId: lowercase/uppercase UUIDs produce same result."""
-        meeting_id_lower = "550e8400-e29b-41d4-a716-446655440000"
-        meeting_id_upper = "550E8400-E29B-41D4-A716-446655440000"
-
-        cloud_lower = generate_cloud_instance_id(meeting_id_lower)
-        cloud_upper = generate_cloud_instance_id(meeting_id_upper)
-        assert cloud_lower == cloud_upper
-
-    def test_uuid5_is_case_sensitive_warning(self):
-        """
-        Documents uuid5 case sensitivity - different case UUIDs produce different hashes.
-
-        Not a problem: meeting.id always lowercase from DB and API.
-        Frontend generates raw-tracks instanceId from lowercase meeting.id.
-        Backend receives lowercase meeting_id when matching.
-
-        This test documents the behavior, not a requirement.
-        """
-        meeting_id_lower = "550e8400-e29b-41d4-a716-446655440000"
-        meeting_id_upper = "550E8400-E29B-41D4-A716-446655440000"
-
-        raw_lower = generate_raw_tracks_instance_id(meeting_id_lower)
-        raw_upper = generate_raw_tracks_instance_id(meeting_id_upper)
-        assert raw_lower != raw_upper
-
-
-class TestMtgSessionIdVsInstanceId:
-    """
-    Documents that Daily.co's mtgSessionId differs from our instanceId.
-
-    Why this matters: We investigated using mtgSessionId for matching but discovered
-    it's Daily.co-generated and unrelated to instanceId we send. This test documents
-    that finding so we don't investigate it again.
-
-    Production data from 2026-01-13:
-    - Meeting ID:            4ad503b6-8189-4910-a8f7-68cdd1b7f990
-    - Cloud instanceId:      4ad503b6-8189-4910-a8f7-68cdd1b7f990 (same as meeting ID)
-    - Raw-tracks instanceId: 784b3af3-c7dd-57f0-ac54-2ee91c6927cb (UUIDv5 derived)
-    - Recording mtgSessionId: f25a2e09-740f-4932-9c0d-b1bebaa669c6 (different!)
-
-    Conclusion: Cannot use mtgSessionId for recording-to-meeting matching.
-    """
-
-    def test_mtg_session_id_differs_from_our_instance_ids(self):
-        """mtgSessionId (Daily.co) != instanceId (ours) for both cloud and raw-tracks."""
-        meeting_id = "4ad503b6-8189-4910-a8f7-68cdd1b7f990"
-        expected_raw_tracks_id = "784b3af3-c7dd-57f0-ac54-2ee91c6927cb"
-        mtg_session_id = "f25a2e09-740f-4932-9c0d-b1bebaa669c6"
-
-        cloud_instance_id = generate_cloud_instance_id(meeting_id)
-        raw_tracks_instance_id = generate_raw_tracks_instance_id(meeting_id)
-
-        assert str(cloud_instance_id) == meeting_id
-        assert str(raw_tracks_instance_id) == expected_raw_tracks_id
-        assert str(cloud_instance_id) != mtg_session_id
-        assert str(raw_tracks_instance_id) != mtg_session_id
--- a/server/tests/test_hatchet_dispatch.py
+++ b/server/tests/test_hatchet_dispatch.py
@@ -2,9 +2,10 @@
 Tests for Hatchet workflow dispatch and routing logic.

 These tests verify:
-1. Hatchet workflow validation and replay logic
-2. Force flag to cancel and restart workflows
-3. Validation prevents concurrent workflows
+1. Routing to Hatchet when HATCHET_ENABLED=True
+2. Replay logic for failed workflows
+3. Force flag to cancel and restart
+4. Validation prevents concurrent workflows
 """

 from unittest.mock import AsyncMock, patch
@@ -33,22 +34,25 @@ async def test_hatchet_validation_blocks_running_workflow():
        workflow_run_id="running-workflow-123",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        mock_hatchet.get_workflow_run_status = AsyncMock(
-            return_value=V1TaskStatus.RUNNING
-        )
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True

        with patch(
-            "reflector.services.transcript_process.task_is_scheduled_or_active"
-        ) as mock_celery_check:
-            mock_celery_check.return_value = False
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            mock_hatchet.get_workflow_run_status = AsyncMock(
+                return_value=V1TaskStatus.RUNNING
+            )

-            result = await validate_transcript_for_processing(mock_transcript)
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False

-        assert isinstance(result, ValidationAlreadyScheduled)
-        assert "running" in result.detail.lower()
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            assert isinstance(result, ValidationAlreadyScheduled)
+            assert "running" in result.detail.lower()


@pytest.mark.usefixtures("setup_database")
@@ -68,21 +72,24 @@ async def test_hatchet_validation_blocks_queued_workflow():
        workflow_run_id="queued-workflow-123",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        mock_hatchet.get_workflow_run_status = AsyncMock(
-            return_value=V1TaskStatus.QUEUED
-        )
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True

        with patch(
-            "reflector.services.transcript_process.task_is_scheduled_or_active"
-        ) as mock_celery_check:
-            mock_celery_check.return_value = False
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            mock_hatchet.get_workflow_run_status = AsyncMock(
+                return_value=V1TaskStatus.QUEUED
+            )

-            result = await validate_transcript_for_processing(mock_transcript)
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False

-        assert isinstance(result, ValidationAlreadyScheduled)
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            assert isinstance(result, ValidationAlreadyScheduled)


@pytest.mark.usefixtures("setup_database")
@@ -103,22 +110,25 @@ async def test_hatchet_validation_allows_failed_workflow():
        recording_id="test-recording-id",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        mock_hatchet.get_workflow_run_status = AsyncMock(
-            return_value=V1TaskStatus.FAILED
-        )
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True

        with patch(
-            "reflector.services.transcript_process.task_is_scheduled_or_active"
-        ) as mock_celery_check:
-            mock_celery_check.return_value = False
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            mock_hatchet.get_workflow_run_status = AsyncMock(
+                return_value=V1TaskStatus.FAILED
+            )

-            result = await validate_transcript_for_processing(mock_transcript)
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False

-        assert isinstance(result, ValidationOk)
-        assert result.transcript_id == "test-transcript-id"
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            assert isinstance(result, ValidationOk)
+            assert result.transcript_id == "test-transcript-id"


@pytest.mark.usefixtures("setup_database")
@@ -139,21 +149,24 @@ async def test_hatchet_validation_allows_completed_workflow():
        recording_id="test-recording-id",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        mock_hatchet.get_workflow_run_status = AsyncMock(
-            return_value=V1TaskStatus.COMPLETED
-        )
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True

        with patch(
-            "reflector.services.transcript_process.task_is_scheduled_or_active"
-        ) as mock_celery_check:
-            mock_celery_check.return_value = False
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            mock_hatchet.get_workflow_run_status = AsyncMock(
+                return_value=V1TaskStatus.COMPLETED
+            )

-            result = await validate_transcript_for_processing(mock_transcript)
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False

-        assert isinstance(result, ValidationOk)
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            assert isinstance(result, ValidationOk)


@pytest.mark.usefixtures("setup_database")
@@ -174,23 +187,26 @@ async def test_hatchet_validation_allows_when_status_check_fails():
        recording_id="test-recording-id",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        # Status check fails (workflow might be deleted)
-        mock_hatchet.get_workflow_run_status = AsyncMock(
-            side_effect=ApiException("Workflow not found")
-        )
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True

        with patch(
-            "reflector.services.transcript_process.task_is_scheduled_or_active"
-        ) as mock_celery_check:
-            mock_celery_check.return_value = False
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            # Status check fails (workflow might be deleted)
+            mock_hatchet.get_workflow_run_status = AsyncMock(
+                side_effect=ApiException("Workflow not found")
+            )

-            result = await validate_transcript_for_processing(mock_transcript)
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False

-        # Should allow processing when we can't get status
-        assert isinstance(result, ValidationOk)
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            # Should allow processing when we can't get status
+            assert isinstance(result, ValidationOk)


@pytest.mark.usefixtures("setup_database")
@@ -211,11 +227,47 @@ async def test_hatchet_validation_skipped_when_no_workflow_id():
        recording_id="test-recording-id",
    )

-    with patch(
-        "reflector.services.transcript_process.HatchetClientManager"
-    ) as mock_hatchet:
-        # Should not be called
-        mock_hatchet.get_workflow_run_status = AsyncMock()
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = True
+
+        with patch(
+            "reflector.services.transcript_process.HatchetClientManager"
+        ) as mock_hatchet:
+            # Should not be called
+            mock_hatchet.get_workflow_run_status = AsyncMock()
+
+            with patch(
+                "reflector.services.transcript_process.task_is_scheduled_or_active"
+            ) as mock_celery_check:
+                mock_celery_check.return_value = False
+
+                result = await validate_transcript_for_processing(mock_transcript)
+
+            # Should not check Hatchet status
+            mock_hatchet.get_workflow_run_status.assert_not_called()
+            assert isinstance(result, ValidationOk)
+
+
+@pytest.mark.usefixtures("setup_database")
+@pytest.mark.asyncio
+async def test_hatchet_validation_skipped_when_disabled():
+    """Test that Hatchet validation is skipped when HATCHET_ENABLED is False."""
+    from reflector.services.transcript_process import (
+        ValidationOk,
+        validate_transcript_for_processing,
+    )
+
+    mock_transcript = Transcript(
+        id="test-transcript-id",
+        name="Test",
+        status="uploaded",
+        source_kind="room",
+        workflow_run_id="some-workflow-123",
+        recording_id="test-recording-id",
+    )
+
+    with patch("reflector.services.transcript_process.settings") as mock_settings:
+        mock_settings.HATCHET_ENABLED = False  # Hatchet disabled

        with patch(
            "reflector.services.transcript_process.task_is_scheduled_or_active"
@@ -224,8 +276,7 @@ async def test_hatchet_validation_skipped_when_no_workflow_id():

            result = await validate_transcript_for_processing(mock_transcript)

-        # Should not check Hatchet status
-        mock_hatchet.get_workflow_run_status.assert_not_called()
+        # Should not check Hatchet at all
        assert isinstance(result, ValidationOk)


--- a/server/tests/test_ics_sync.py
+++ b/server/tests/test_ics_sync.py
@@ -189,17 +189,14 @@ async def test_ics_sync_service_sync_room_calendar():
        assert events[0].ics_uid == "sync-event-1"
        assert events[0].title == "Sync Test Meeting"

-        # Second sync with same content (calendar unchanged, but sync always runs)
+        # Second sync with same content (should be unchanged)
        # Refresh room to get updated etag and force sync by setting old sync time
        room = await rooms_controller.get_by_id(room.id)
        await rooms_controller.update(
            room, {"ics_last_sync": datetime.now(timezone.utc) - timedelta(minutes=10)}
        )
        result = await sync_service.sync_room_calendar(room)
-        assert result["status"] == "success"
-        assert result["events_created"] == 0
-        assert result["events_updated"] == 0
-        assert result["events_deleted"] == 0
+        assert result["status"] == "unchanged"

        # Third sync with updated event
        event["summary"] = "Updated Meeting Title"
@@ -291,43 +288,3 @@ async def test_ics_sync_service_error_handling():
        result = await sync_service.sync_room_calendar(room)
        assert result["status"] == "error"
        assert "Network error" in result["error"]
-
-
-@pytest.mark.asyncio
-async def test_event_data_changed_exhaustiveness():
-    """Test that _event_data_changed compares all EventData fields (except ics_uid).
-
-    This test ensures programmers don't forget to update the comparison logic
-    when adding new fields to EventData/CalendarEvent.
-    """
-    from reflector.services.ics_sync import EventData
-
-    sync_service = ICSSyncService()
-
-    from reflector.db.calendar_events import CalendarEvent
-
-    now = datetime.now(timezone.utc)
-    event_data: EventData = {
-        "ics_uid": "test-123",
-        "title": "Test",
-        "description": "Desc",
-        "location": "Loc",
-        "start_time": now,
-        "end_time": now + timedelta(hours=1),
-        "attendees": [],
-        "ics_raw_data": "raw",
-    }
-
-    existing = CalendarEvent(
-        room_id="room1",
-        **event_data,
-    )
-
-    # Will raise RuntimeError if fields are missing from comparison
-    result = sync_service._event_data_changed(existing, event_data)
-    assert result is False
-
-    modified_data = event_data.copy()
-    modified_data["title"] = "Changed Title"
-    result = sync_service._event_data_changed(existing, modified_data)
-    assert result is True
--- a/server/tests/test_time_based_meeting_matching.py
+++ b/server/tests/test_time_based_meeting_matching.py
@@ -1,374 +0,0 @@
-"""
-Integration tests for time-based meeting-to-recording matching.
-
-Tests the critical path for matching Daily.co recordings to meetings when
-API doesn't return instanceId.
-"""
-
-from datetime import datetime, timedelta, timezone
-
-import pytest
-
-from reflector.db.meetings import meetings_controller
-from reflector.db.rooms import rooms_controller
-
-
-@pytest.fixture
-async def test_room():
-    """Create a test room for meetings."""
-    room = await rooms_controller.add(
-        name="test-room-time",
-        user_id="test-user-id",
-        zulip_auto_post=False,
-        zulip_stream="",
-        zulip_topic="",
-        is_locked=False,
-        room_mode="normal",
-        recording_type="cloud",
-        recording_trigger="automatic",
-        is_shared=False,
-        platform="daily",
-    )
-    return room
-
-
-@pytest.fixture
-def base_time():
-    """Fixed timestamp for deterministic tests."""
-    return datetime(2026, 1, 14, 9, 0, 0, tzinfo=timezone.utc)
-
-
-class TestTimeBasedMatching:
-    """Test get_by_room_name_and_time() matching logic."""
-
-    async def test_exact_time_match(self, test_room, base_time):
-        """Recording timestamp exactly matches meeting start_date."""
-        meeting = await meetings_controller.create(
-            id="meeting-exact",
-            room_name="daily-test-20260114090000",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-20260114090000",
-            recording_start=base_time,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == meeting.id
-
-    async def test_recording_slightly_after_meeting_start(self, test_room, base_time):
-        """Recording started 1 minute after meeting (participants joined late)."""
-        meeting = await meetings_controller.create(
-            id="meeting-late",
-            room_name="daily-test-20260114090100",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        recording_start = base_time + timedelta(minutes=1)
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-20260114090100",
-            recording_start=recording_start,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == meeting.id
-
-    async def test_duplicate_room_names_picks_closest(self, test_room, base_time):
-        """
-        Two meetings with same room_name (duplicate/race condition).
-        Should pick closest by timestamp.
-        """
-        meeting1 = await meetings_controller.create(
-            id="meeting-1-first",
-            room_name="daily-duplicate-room",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        meeting2 = await meetings_controller.create(
-            id="meeting-2-second",
-            room_name="daily-duplicate-room",  # Same room_name!
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time + timedelta(seconds=0.99),  # 0.99s later
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        # Recording started 0.5s after meeting1
-        # Distance: meeting1 = 0.5s, meeting2 = 0.49s → meeting2 is closer
-        recording_start = base_time + timedelta(seconds=0.5)
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-duplicate-room",
-            recording_start=recording_start,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == meeting2.id  # meeting2 is closer (0.49s vs 0.5s)
-
-    async def test_outside_time_window_returns_none(self, test_room, base_time):
-        """Recording outside 1-week window returns None."""
-        await meetings_controller.create(
-            id="meeting-old",
-            room_name="daily-test-old",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        # Recording 8 days later (outside 7-day window)
-        recording_start = base_time + timedelta(days=8)
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-old",
-            recording_start=recording_start,
-            time_window_hours=168,
-        )
-
-        assert result is None
-
-    async def test_tie_breaker_deterministic(self, test_room, base_time):
-        """When time delta identical, tie-breaker by meeting.id is deterministic."""
-        meeting_z = await meetings_controller.create(
-            id="zzz-last-uuid",
-            room_name="daily-test-tie",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        meeting_a = await meetings_controller.create(
-            id="aaa-first-uuid",
-            room_name="daily-test-tie",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,  # Exact same start_date
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-tie",
-            recording_start=base_time,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        # Tie-breaker: lexicographically first UUID
-        assert result.id == "aaa-first-uuid"
-
-    async def test_timezone_naive_datetime_raises(self, test_room, base_time):
-        """Timezone-naive datetime raises ValueError."""
-        await meetings_controller.create(
-            id="meeting-tz",
-            room_name="daily-test-tz",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        # Naive datetime (no timezone)
-        naive_dt = datetime(2026, 1, 14, 9, 0, 0)
-
-        with pytest.raises(ValueError, match="timezone-aware"):
-            await meetings_controller.get_by_room_name_and_time(
-                room_name="daily-test-tz",
-                recording_start=naive_dt,
-                time_window_hours=168,
-            )
-
-    async def test_one_week_boundary_after_included(self, test_room, base_time):
-        """Meeting 1-week AFTER recording is included (window_end boundary)."""
-        meeting_time = base_time + timedelta(hours=168)
-
-        await meetings_controller.create(
-            id="meeting-boundary-after",
-            room_name="daily-test-boundary-after",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=meeting_time,
-            end_date=meeting_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-boundary-after",
-            recording_start=base_time,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == "meeting-boundary-after"
-
-    async def test_one_week_boundary_before_included(self, test_room, base_time):
-        """Meeting 1-week BEFORE recording is included (window_start boundary)."""
-        meeting_time = base_time - timedelta(hours=168)
-
-        await meetings_controller.create(
-            id="meeting-boundary-before",
-            room_name="daily-test-boundary-before",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=meeting_time,
-            end_date=meeting_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-boundary-before",
-            recording_start=base_time,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == "meeting-boundary-before"
-
-    async def test_recording_before_meeting_start(self, test_room, base_time):
-        """Recording started before meeting (clock skew or early join)."""
-        await meetings_controller.create(
-            id="meeting-early",
-            room_name="daily-test-early",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        recording_start = base_time - timedelta(minutes=2)
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-early",
-            recording_start=recording_start,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == "meeting-early"
-
-    async def test_mixed_inside_outside_window(self, test_room, base_time):
-        """Multiple meetings, only one inside window - returns the inside one."""
-        await meetings_controller.create(
-            id="meeting-old",
-            room_name="daily-test-mixed",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time - timedelta(days=10),
-            end_date=base_time - timedelta(days=10, hours=-1),
-            room=test_room,
-        )
-
-        await meetings_controller.create(
-            id="meeting-inside",
-            room_name="daily-test-mixed",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time - timedelta(days=2),
-            end_date=base_time - timedelta(days=2, hours=-1),
-            room=test_room,
-        )
-
-        await meetings_controller.create(
-            id="meeting-future",
-            room_name="daily-test-mixed",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time + timedelta(days=10),
-            end_date=base_time + timedelta(days=10, hours=1),
-            room=test_room,
-        )
-
-        result = await meetings_controller.get_by_room_name_and_time(
-            room_name="daily-test-mixed",
-            recording_start=base_time,
-            time_window_hours=168,
-        )
-
-        assert result is not None
-        assert result.id == "meeting-inside"
-
-
-class TestAtomicCloudRecordingUpdate:
-    """Test atomic update prevents race conditions."""
-
-    async def test_first_update_succeeds(self, test_room, base_time):
-        """First call to set_cloud_recording_if_missing succeeds."""
-        meeting = await meetings_controller.create(
-            id="meeting-atomic-1",
-            room_name="daily-test-atomic",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        success = await meetings_controller.set_cloud_recording_if_missing(
-            meeting_id=meeting.id,
-            s3_key="first-s3-key",
-            duration=100,
-        )
-
-        assert success is True
-
-        updated = await meetings_controller.get_by_id(meeting.id)
-        assert updated.daily_composed_video_s3_key == "first-s3-key"
-        assert updated.daily_composed_video_duration == 100
-
-    async def test_second_update_fails_atomically(self, test_room, base_time):
-        """Second call to update same meeting doesn't overwrite (atomic check)."""
-        meeting = await meetings_controller.create(
-            id="meeting-atomic-2",
-            room_name="daily-test-atomic2",
-            room_url="https://example.daily.co/test",
-            host_room_url="https://example.daily.co/test?t=host",
-            start_date=base_time,
-            end_date=base_time + timedelta(hours=1),
-            room=test_room,
-        )
-
-        success1 = await meetings_controller.set_cloud_recording_if_missing(
-            meeting_id=meeting.id,
-            s3_key="first-s3-key",
-            duration=100,
-        )
-
-        assert success1 is True
-
-        after_first = await meetings_controller.get_by_id(meeting.id)
-        assert after_first.daily_composed_video_s3_key == "first-s3-key"
-
-        success2 = await meetings_controller.set_cloud_recording_if_missing(
-            meeting_id=meeting.id,
-            s3_key="bucket/path/should-not-overwrite",
-            duration=200,
-        )
-
-        assert success2 is False
-
-        final = await meetings_controller.get_by_id(meeting.id)
-        assert final.daily_composed_video_s3_key == "first-s3-key"
-        assert final.daily_composed_video_duration == 100
--- a/server/tests/test_transcripts_process.py
+++ b/server/tests/test_transcripts_process.py
@@ -162,24 +162,9 @@ async def test_dailyco_recording_uses_multitrack_pipeline(client):
    from datetime import datetime, timezone

    from reflector.db.recordings import Recording, recordings_controller
-    from reflector.db.rooms import rooms_controller
    from reflector.db.transcripts import transcripts_controller

-    room = await rooms_controller.add(
-        name="test-room",
-        user_id="test-user",
-        zulip_auto_post=False,
-        zulip_stream="",
-        zulip_topic="",
-        is_locked=False,
-        room_mode="normal",
-        recording_type="cloud",
-        recording_trigger="automatic-2nd-participant",
-        is_shared=False,
-    )
-    # Force Celery backend for test
-    await rooms_controller.update(room, {"use_celery": True})
-
+    # Create transcript with Daily.co multitrack recording
    transcript = await transcripts_controller.add(
        "",
        source_kind="room",
@@ -187,7 +172,6 @@ async def test_dailyco_recording_uses_multitrack_pipeline(client):
        target_language="en",
        user_id="test-user",
        share_mode="public",
-        room_id=room.id,
    )

    track_keys = [
--- a/www/app/(app)/rooms/page.tsx
+++ b/www/app/(app)/rooms/page.tsx
@@ -302,10 +302,10 @@ export default function RoomsList() {
        return;
      }

-      const platform: "whereby" | "daily" =
+      const platform: "whereby" | "daily" | null =
        room.platform === "whereby" || room.platform === "daily"
          ? room.platform
-          : "daily";
+          : null;

      const roomData = {
        name: room.name,
--- a/www/app/(app)/transcripts/[transcriptId]/correct/page.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/correct/page.tsx
@@ -16,7 +16,6 @@ import {
 import { useError } from "../../../../(errors)/errorContext";
 import { useRouter } from "next/navigation";
 import { Box, Grid } from "@chakra-ui/react";
-import { parseNonEmptyString } from "../../../../lib/utils";

 export type TranscriptCorrect = {
  params: Promise<{
@@ -26,7 +25,8 @@ export type TranscriptCorrect = {

 export default function TranscriptCorrect(props: TranscriptCorrect) {
  const params = use(props.params);
-  const transcriptId = parseNonEmptyString(params.transcriptId);
+
+  const { transcriptId } = params;

  const updateTranscriptMutation = useTranscriptUpdate();
  const transcript = useTranscriptGet(transcriptId);
--- a/www/app/(app)/transcripts/[transcriptId]/finalSummary.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/finalSummary.tsx
@@ -3,8 +3,7 @@ import React from "react";
 import Markdown from "react-markdown";
 import "../../../styles/markdown.css";
 import type { components } from "../../../reflector-api";
-type GetTranscriptWithParticipants =
-  components["schemas"]["GetTranscriptWithParticipants"];
+type GetTranscript = components["schemas"]["GetTranscript"];
 type GetTranscriptTopic = components["schemas"]["GetTranscriptTopic"];
 import { useTranscriptUpdate } from "../../../lib/apiHooks";
 import {
@@ -19,7 +18,7 @@ import { LuPen } from "react-icons/lu";
 import { useError } from "../../../(errors)/errorContext";

 type FinalSummaryProps = {
-  transcript: GetTranscriptWithParticipants;
+  transcript: GetTranscript;
  topics: GetTranscriptTopic[];
  onUpdate: (newSummary: string) => void;
  finalSummaryRef: React.Dispatch<React.SetStateAction<HTMLDivElement | null>>;
--- a/www/app/(app)/transcripts/[transcriptId]/page.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/page.tsx
@@ -9,9 +9,7 @@ import React, { useEffect, useState, use } from "react";
 import FinalSummary from "./finalSummary";
 import TranscriptTitle from "../transcriptTitle";
 import Player from "../player";
-import { useWebSockets } from "../useWebSockets";
 import { useRouter } from "next/navigation";
-import { parseNonEmptyString } from "../../../lib/utils";
 import {
  Box,
  Flex,
@@ -32,7 +30,7 @@ type TranscriptDetails = {

 export default function TranscriptDetails(details: TranscriptDetails) {
  const params = use(details.params);
-  const transcriptId = parseNonEmptyString(params.transcriptId);
+  const transcriptId = params.transcriptId;
  const router = useRouter();
  const statusToRedirect = [
    "idle",
@@ -51,7 +49,6 @@ export default function TranscriptDetails(details: TranscriptDetails) {
    transcriptId,
    waiting || mp3.audioDeleted === true,
  );
-  useWebSockets(transcriptId);
  const useActiveTopic = useState<Topic | null>(null);
  const [finalSummaryElement, setFinalSummaryElement] =
    useState<HTMLDivElement | null>(null);
--- a/www/app/(app)/transcripts/[transcriptId]/processing/page.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/processing/page.tsx
@@ -10,7 +10,6 @@ import {
 } from "@chakra-ui/react";
 import { useRouter } from "next/navigation";
 import { useTranscriptGet } from "../../../../lib/apiHooks";
-import { parseNonEmptyString } from "../../../../lib/utils";

 type TranscriptProcessing = {
  params: Promise<{
@@ -20,7 +19,7 @@ type TranscriptProcessing = {

 export default function TranscriptProcessing(details: TranscriptProcessing) {
  const params = use(details.params);
-  const transcriptId = parseNonEmptyString(params.transcriptId);
+  const transcriptId = params.transcriptId;
  const router = useRouter();

  const transcript = useTranscriptGet(transcriptId);
--- a/www/app/(app)/transcripts/[transcriptId]/record/page.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/record/page.tsx
@@ -12,7 +12,6 @@ import { Box, Text, Grid, Heading, VStack, Flex } from "@chakra-ui/react";
 import LiveTrancription from "../../liveTranscription";
 import { useTranscriptGet } from "../../../../lib/apiHooks";
 import { TranscriptStatus } from "../../../../lib/transcript";
-import { parseNonEmptyString } from "../../../../lib/utils";

 type TranscriptDetails = {
  params: Promise<{
@@ -22,14 +21,13 @@ type TranscriptDetails = {

 const TranscriptRecord = (details: TranscriptDetails) => {
  const params = use(details.params);
-  const transcriptId = parseNonEmptyString(params.transcriptId);
-  const transcript = useTranscriptGet(transcriptId);
+  const transcript = useTranscriptGet(params.transcriptId);
  const [transcriptStarted, setTranscriptStarted] = useState(false);
  const useActiveTopic = useState<Topic | null>(null);

-  const webSockets = useWebSockets(transcriptId);
+  const webSockets = useWebSockets(params.transcriptId);

-  const mp3 = useMp3(transcriptId, true);
+  const mp3 = useMp3(params.transcriptId, true);

  const router = useRouter();

--- a/www/app/(app)/transcripts/[transcriptId]/upload/page.tsx
+++ b/www/app/(app)/transcripts/[transcriptId]/upload/page.tsx
@@ -7,7 +7,6 @@ import useMp3 from "../../useMp3";
 import { Center, VStack, Text, Heading } from "@chakra-ui/react";
 import FileUploadButton from "../../fileUploadButton";
 import { useTranscriptGet } from "../../../../lib/apiHooks";
-import { parseNonEmptyString } from "../../../../lib/utils";

 type TranscriptUpload = {
  params: Promise<{
@@ -17,13 +16,12 @@ type TranscriptUpload = {

 const TranscriptUpload = (details: TranscriptUpload) => {
  const params = use(details.params);
-  const transcriptId = parseNonEmptyString(params.transcriptId);
-  const transcript = useTranscriptGet(transcriptId);
+  const transcript = useTranscriptGet(params.transcriptId);
  const [transcriptStarted, setTranscriptStarted] = useState(false);

-  const webSockets = useWebSockets(transcriptId);
+  const webSockets = useWebSockets(params.transcriptId);

-  const mp3 = useMp3(transcriptId, true);
+  const mp3 = useMp3(params.transcriptId, true);

  const router = useRouter();

--- a/www/app/(app)/transcripts/createTranscript.ts
+++ b/www/app/(app)/transcripts/createTranscript.ts
@@ -2,11 +2,10 @@ import type { components } from "../../reflector-api";
 import { useTranscriptCreate } from "../../lib/apiHooks";

 type CreateTranscript = components["schemas"]["CreateTranscript"];
-type GetTranscriptWithParticipants =
-  components["schemas"]["GetTranscriptWithParticipants"];
+type GetTranscript = components["schemas"]["GetTranscript"];

 type UseCreateTranscript = {
-  transcript: GetTranscriptWithParticipants | null;
+  transcript: GetTranscript | null;
  loading: boolean;
  error: Error | null;
  create: (transcriptCreationDetails: CreateTranscript) => Promise<void>;
--- a/www/app/(app)/transcripts/shareAndPrivacy.tsx
+++ b/www/app/(app)/transcripts/shareAndPrivacy.tsx
@@ -2,8 +2,7 @@ import { useEffect, useState } from "react";

 import { ShareMode, toShareMode } from "../../lib/shareMode";
 import type { components } from "../../reflector-api";
-type GetTranscriptWithParticipants =
-  components["schemas"]["GetTranscriptWithParticipants"];
+type GetTranscript = components["schemas"]["GetTranscript"];
 type GetTranscriptTopic = components["schemas"]["GetTranscriptTopic"];
 type UpdateTranscript = components["schemas"]["UpdateTranscript"];
 import {
@@ -28,7 +27,7 @@ import { featureEnabled } from "../../lib/features";

 type ShareAndPrivacyProps = {
  finalSummaryElement: HTMLDivElement | null;
-  transcript: GetTranscriptWithParticipants;
+  transcript: GetTranscript;
  topics: GetTranscriptTopic[];
 };

--- a/www/app/(app)/transcripts/shareZulip.tsx
+++ b/www/app/(app)/transcripts/shareZulip.tsx
@@ -1,8 +1,7 @@
 import { useState, useEffect, useMemo } from "react";
 import type { components } from "../../reflector-api";

-type GetTranscriptWithParticipants =
-  components["schemas"]["GetTranscriptWithParticipants"];
+type GetTranscript = components["schemas"]["GetTranscript"];
 type GetTranscriptTopic = components["schemas"]["GetTranscriptTopic"];
 import {
  BoxProps,
@@ -27,7 +26,7 @@ import {
 import { featureEnabled } from "../../lib/features";

 type ShareZulipProps = {
-  transcript: GetTranscriptWithParticipants;
+  transcript: GetTranscript;
  topics: GetTranscriptTopic[];
  disabled: boolean;
 };
--- a/www/app/(app)/transcripts/transcriptTitle.tsx
+++ b/www/app/(app)/transcripts/transcriptTitle.tsx
@@ -1,10 +1,8 @@
 import { useState } from "react";
 import type { components } from "../../reflector-api";
-import { parseMaybeNonEmptyString } from "../../lib/utils";

 type UpdateTranscript = components["schemas"]["UpdateTranscript"];
-type GetTranscriptWithParticipants =
-  components["schemas"]["GetTranscriptWithParticipants"];
+type GetTranscript = components["schemas"]["GetTranscript"];
 type GetTranscriptTopic = components["schemas"]["GetTranscriptTopic"];
 import {
  useTranscriptUpdate,
@@ -22,7 +20,7 @@ type TranscriptTitle = {
  onUpdate: (newTitle: string) => void;

  // share props
-  transcript: GetTranscriptWithParticipants | null;
+  transcript: GetTranscript | null;
  topics: GetTranscriptTopic[] | null;
  finalSummaryElement: HTMLDivElement | null;
 };
@@ -33,7 +31,7 @@ const TranscriptTitle = (props: TranscriptTitle) => {
  const [isEditing, setIsEditing] = useState(false);
  const updateTranscriptMutation = useTranscriptUpdate();
  const participantsQuery = useTranscriptParticipants(
-    props.transcript?.id ? parseMaybeNonEmptyString(props.transcript.id) : null,
+    props.transcript?.id || null,
  );

  const updateTitle = async (newTitle: string, transcriptId: string) => {
--- a/www/app/(app)/transcripts/useMp3.ts
+++ b/www/app/(app)/transcripts/useMp3.ts
@@ -1,6 +1,5 @@
 import { useEffect, useState } from "react";
 import { useTranscriptGet } from "../../lib/apiHooks";
-import { parseMaybeNonEmptyString } from "../../lib/utils";
 import { useAuth } from "../../lib/AuthProvider";
 import { API_URL } from "../../lib/apiClient";

@@ -28,7 +27,7 @@ const useMp3 = (transcriptId: string, waiting?: boolean): Mp3Response => {
    data: transcript,
    isLoading: transcriptMetadataLoading,
    error: transcriptError,
-  } = useTranscriptGet(later ? null : parseMaybeNonEmptyString(transcriptId));
+  } = useTranscriptGet(later ? null : transcriptId);

  const [serviceWorker, setServiceWorker] =
    useState<ServiceWorkerRegistration | null>(null);
--- a/www/app/(app)/transcripts/useParticipants.ts
+++ b/www/app/(app)/transcripts/useParticipants.ts
@@ -1,7 +1,6 @@
 import type { components } from "../../reflector-api";
 type Participant = components["schemas"]["Participant"];
 import { useTranscriptParticipants } from "../../lib/apiHooks";
-import { parseMaybeNonEmptyString } from "../../lib/utils";

 type ErrorParticipants = {
  error: Error;
@@ -33,7 +32,7 @@ const useParticipants = (transcriptId: string): UseParticipants => {
    isLoading: loading,
    error,
    refetch,
-  } = useTranscriptParticipants(parseMaybeNonEmptyString(transcriptId));
+  } = useTranscriptParticipants(transcriptId || null);

  // Type-safe return based on state
  if (error) {
--- a/www/app/(app)/transcripts/useTopicWithWords.ts
+++ b/www/app/(app)/transcripts/useTopicWithWords.ts
@@ -1,6 +1,5 @@
 import type { components } from "../../reflector-api";
 import { useTranscriptTopicsWithWordsPerSpeaker } from "../../lib/apiHooks";
-import { parseMaybeNonEmptyString } from "../../lib/utils";

 type GetTranscriptTopicWithWordsPerSpeaker =
  components["schemas"]["GetTranscriptTopicWithWordsPerSpeaker"];
@@ -39,7 +38,7 @@ const useTopicWithWords = (
    error,
    refetch,
  } = useTranscriptTopicsWithWordsPerSpeaker(
-    parseMaybeNonEmptyString(transcriptId),
+    transcriptId || null,
    topicId || null,
  );

--- a/www/app/(app)/transcripts/useTopics.ts
+++ b/www/app/(app)/transcripts/useTopics.ts
@@ -1,6 +1,5 @@
 import { useTranscriptTopics } from "../../lib/apiHooks";
 import type { components } from "../../reflector-api";
-import { parseMaybeNonEmptyString } from "../../lib/utils";

 type GetTranscriptTopic = components["schemas"]["GetTranscriptTopic"];

@@ -11,11 +10,7 @@ type TranscriptTopics = {
 };

 const useTopics = (id: string): TranscriptTopics => {
-  const {
-    data: topics,
-    isLoading: loading,
-    error,
-  } = useTranscriptTopics(parseMaybeNonEmptyString(id));
+  const { data: topics, isLoading: loading, error } = useTranscriptTopics(id);

  return {
    topics: topics || null,
--- a/www/app/(app)/transcripts/useWaveform.ts
+++ b/www/app/(app)/transcripts/useWaveform.ts
@@ -1,6 +1,5 @@
 import type { components } from "../../reflector-api";
 import { useTranscriptWaveform } from "../../lib/apiHooks";
-import { parseMaybeNonEmptyString } from "../../lib/utils";

 type AudioWaveform = components["schemas"]["AudioWaveform"];

@@ -15,7 +14,7 @@ const useWaveform = (id: string, skip: boolean): AudioWaveFormResponse => {
    data: waveform,
    isLoading: loading,
    error,
-  } = useTranscriptWaveform(skip ? null : parseMaybeNonEmptyString(id));
+  } = useTranscriptWaveform(skip ? null : id);

  return {
    waveform: waveform || null,
--- a/www/app/(app)/transcripts/useWebSockets.ts
+++ b/www/app/(app)/transcripts/useWebSockets.ts
@@ -7,12 +7,6 @@ type GetTranscriptSegmentTopic =
  components["schemas"]["GetTranscriptSegmentTopic"];
 import { useQueryClient } from "@tanstack/react-query";
 import { $api, WEBSOCKET_URL } from "../../lib/apiClient";
-import {
-  invalidateTranscript,
-  invalidateTranscriptTopics,
-  invalidateTranscriptWaveform,
-} from "../../lib/apiHooks";
-import { NonEmptyString } from "../../lib/utils";

 export type UseWebSockets = {
  transcriptTextLive: string;
@@ -375,10 +369,15 @@ export const useWebSockets = (transcriptId: string | null): UseWebSockets => {
            });
            console.debug("TOPIC event:", message.data);
            // Invalidate topics query to sync with WebSocket data
-            invalidateTranscriptTopics(
-              queryClient,
-              transcriptId as NonEmptyString,
-            );
+            queryClient.invalidateQueries({
+              queryKey: $api.queryOptions(
+                "get",
+                "/v1/transcripts/{transcript_id}/topics",
+                {
+                  params: { path: { transcript_id: transcriptId } },
+                },
+              ).queryKey,
+            });
            break;

          case "FINAL_SHORT_SUMMARY":
@@ -389,7 +388,15 @@ export const useWebSockets = (transcriptId: string | null): UseWebSockets => {
            if (message.data) {
              setFinalSummary(message.data);
              // Invalidate transcript query to sync summary
-              invalidateTranscript(queryClient, transcriptId as NonEmptyString);
+              queryClient.invalidateQueries({
+                queryKey: $api.queryOptions(
+                  "get",
+                  "/v1/transcripts/{transcript_id}",
+                  {
+                    params: { path: { transcript_id: transcriptId } },
+                  },
+                ).queryKey,
+              });
            }
            break;

@@ -398,7 +405,15 @@ export const useWebSockets = (transcriptId: string | null): UseWebSockets => {
            if (message.data) {
              setTitle(message.data.title);
              // Invalidate transcript query to sync title
-              invalidateTranscript(queryClient, transcriptId as NonEmptyString);
+              queryClient.invalidateQueries({
+                queryKey: $api.queryOptions(
+                  "get",
+                  "/v1/transcripts/{transcript_id}",
+                  {
+                    params: { path: { transcript_id: transcriptId } },
+                  },
+                ).queryKey,
+              });
            }
            break;

@@ -409,10 +424,6 @@ export const useWebSockets = (transcriptId: string | null): UseWebSockets => {
            );
            if (message.data) {
              setWaveForm(message.data.waveform);
-              invalidateTranscriptWaveform(
-                queryClient,
-                transcriptId as NonEmptyString,
-              );
            }
            break;
          case "DURATION":
--- a/www/app/[roomName]/MeetingSelection.tsx
+++ b/www/app/[roomName]/MeetingSelection.tsx
@@ -26,7 +26,7 @@ import { useRouter } from "next/navigation";
 import { formatDateTime, formatStartedAgo } from "../lib/timeUtils";
 import MeetingMinimalHeader from "../components/MeetingMinimalHeader";
 import { NonEmptyString } from "../lib/utils";
-import { MeetingId, assertMeetingId } from "../lib/types";
+import { MeetingId } from "../lib/types";

 type Meeting = components["schemas"]["Meeting"];

@@ -315,9 +315,7 @@ export default function MeetingSelection({
                        variant="outline"
                        colorScheme="red"
                        size="md"
-                        onClick={() =>
-                          handleEndMeeting(assertMeetingId(meeting.id))
-                        }
+                        onClick={() => handleEndMeeting(meeting.id)}
                        loading={deactivateMeetingMutation.isPending}
                      >
                        <Icon as={LuX} me={2} />
@@ -462,9 +460,7 @@ export default function MeetingSelection({
                          variant="outline"
                          colorScheme="red"
                          size="md"
-                          onClick={() =>
-                            handleEndMeeting(assertMeetingId(meeting.id))
-                          }
+                          onClick={() => handleEndMeeting(meeting.id)}
                          loading={deactivateMeetingMutation.isPending}
                        >
                          <Icon as={LuX} me={2} />
--- a/www/app/[roomName]/components/DailyRoom.tsx
+++ b/www/app/[roomName]/components/DailyRoom.tsx
@@ -22,29 +22,14 @@ import DailyIframe, {
 import type { components } from "../../reflector-api";
 import { useAuth } from "../../lib/AuthProvider";
 import { useConsentDialog } from "../../lib/consent";
-import {
-  useRoomJoinMeeting,
-  useMeetingStartRecording,
-} from "../../lib/apiHooks";
+import { useRoomJoinMeeting } from "../../lib/apiHooks";
 import { omit } from "remeda";
-import {
-  assertExists,
-  NonEmptyString,
-  parseNonEmptyString,
-} from "../../lib/utils";
-import { assertMeetingId, DailyRecordingType } from "../../lib/types";
-import { useUuidV5 } from "react-uuid-hook";
+import { assertExists } from "../../lib/utils";
+import { assertMeetingId } from "../../lib/types";

 const CONSENT_BUTTON_ID = "recording-consent";
 const RECORDING_INDICATOR_ID = "recording-indicator";

-// Namespace UUID for UUIDv5 generation of raw-tracks instanceIds
-// DO NOT CHANGE: Breaks instanceId determinism across deployments
-const RAW_TRACKS_NAMESPACE = "a1b2c3d4-e5f6-7890-abcd-ef1234567890";
-
-const RECORDING_START_DELAY_MS = 2000;
-const RECORDING_START_MAX_RETRIES = 5;
-
 type Meeting = components["schemas"]["Meeting"];
 type Room = components["schemas"]["RoomDetails"];

@@ -88,7 +73,9 @@ const useFrame = (
  cbs: {
    onLeftMeeting: () => void;
    onCustomButtonClick: (ev: DailyEventObjectCustomButtonClick) => void;
-    onJoinMeeting: () => void;
+    onJoinMeeting: (
+      startRecording: (args: { type: "raw-tracks" }) => void,
+    ) => void;
  },
 ) => {
  const [{ frame, joined }, setState] = useState(USE_FRAME_INIT_STATE);
@@ -139,7 +126,7 @@ const useFrame = (
        console.error("frame is null in joined-meeting callback");
        return;
      }
-      cbs.onJoinMeeting();
+      cbs.onJoinMeeting(frame.startRecording.bind(frame));
    };
    frame.on("joined-meeting", joinCb);
    return () => {
@@ -186,15 +173,8 @@ export default function DailyRoom({ meeting, room }: DailyRoomProps) {
  const authLastUserId = auth.lastUserId;
  const [container, setContainer] = useState<HTMLDivElement | null>(null);
  const joinMutation = useRoomJoinMeeting();
-  const startRecordingMutation = useMeetingStartRecording();
  const [joinedMeeting, setJoinedMeeting] = useState<Meeting | null>(null);

-  // Generate deterministic instanceIds so all participants use SAME IDs
-  const cloudInstanceId = parseNonEmptyString(meeting.id);
-  const rawTracksInstanceId = parseNonEmptyString(
-    useUuidV5(meeting.id, RAW_TRACKS_NAMESPACE)[0],
-  );
-
  const roomName = params?.roomName as string;

  const {
@@ -248,72 +228,19 @@ export default function DailyRoom({ meeting, room }: DailyRoomProps) {
    ],
  );

-  const handleFrameJoinMeeting = useCallback(() => {
-    if (meeting.recording_type === "cloud") {
-      console.log("Starting dual recording via REST API", {
-        cloudInstanceId,
-        rawTracksInstanceId,
-      });
-
-      // Start both cloud and raw-tracks via backend REST API (with retry on 404)
-      // Daily.co needs time to register call as "hosting" for REST API
-      const startRecordingWithRetry = (
-        type: DailyRecordingType,
-        instanceId: NonEmptyString,
-        attempt: number = 1,
-      ) => {
-        setTimeout(() => {
-          startRecordingMutation.mutate(
-            {
-              params: {
-                path: {
-                  meeting_id: meeting.id,
-                },
-              },
-              body: {
-                type,
-                instanceId,
-              },
-            },
-            {
-              onError: (error: any) => {
-                const errorText = error?.detail || error?.message || "";
-                const is404NotHosting = errorText.includes(
-                  "does not seem to be hosting a call",
-                );
-                const isActiveStream = errorText.includes(
-                  "has an active stream",
-                );
-
-                if (is404NotHosting && attempt < RECORDING_START_MAX_RETRIES) {
-                  console.log(
-                    `${type}: Call not hosting yet, retry ${attempt + 1}/${RECORDING_START_MAX_RETRIES} in ${RECORDING_START_DELAY_MS}ms...`,
-                  );
-                  startRecordingWithRetry(type, instanceId, attempt + 1);
-                } else if (isActiveStream) {
-                  console.log(
-                    `${type}: Recording already active (started by another participant)`,
-                  );
-                } else {
-                  console.error(`Failed to start ${type} recording:`, error);
-                }
-              },
-            },
-          );
-        }, RECORDING_START_DELAY_MS);
-      };
-
-      // Start both recordings
-      startRecordingWithRetry("cloud", cloudInstanceId);
-      startRecordingWithRetry("raw-tracks", rawTracksInstanceId);
-    }
-  }, [
-    meeting.recording_type,
-    meeting.id,
-    startRecordingMutation,
-    cloudInstanceId,
-    rawTracksInstanceId,
-  ]);
+  const handleFrameJoinMeeting = useCallback(
+    (startRecording: (args: { type: "raw-tracks" }) => void) => {
+      try {
+        if (meeting.recording_type === "cloud") {
+          console.log("Starting cloud recording");
+          startRecording({ type: "raw-tracks" });
+        }
+      } catch (error) {
+        console.error("Failed to start recording:", error);
+      }
+    },
+    [meeting.recording_type],
+  );

  const recordingIconUrl = useMemo(
    () => new URL("/recording-icon.svg", window.location.origin),
--- a/www/app/lib/apiHooks.ts
+++ b/www/app/lib/apiHooks.ts
@@ -6,7 +6,6 @@ import { QueryClient, useQueryClient } from "@tanstack/react-query";
 import type { components } from "../reflector-api";
 import { useAuth } from "./AuthProvider";
 import { MeetingId } from "./types";
-import { NonEmptyString } from "./utils";

 /*
 * XXX error types returned from the hooks are not always correct; declared types are ValidationError but real type could be string or any other
@@ -104,7 +103,7 @@ export function useTranscriptProcess() {
  });
 }

-export function useTranscriptGet(transcriptId: NonEmptyString | null) {
+export function useTranscriptGet(transcriptId: string | null) {
  return $api.useQuery(
    "get",
    "/v1/transcripts/{transcript_id}",
@@ -121,16 +120,6 @@ export function useTranscriptGet(transcriptId: NonEmptyString | null) {
  );
 }

-export const invalidateTranscript = (
-  queryClient: QueryClient,
-  transcriptId: NonEmptyString,
-) =>
-  queryClient.invalidateQueries({
-    queryKey: $api.queryOptions("get", "/v1/transcripts/{transcript_id}", {
-      params: { path: { transcript_id: transcriptId } },
-    }).queryKey,
-  });
-
 export function useRoomGet(roomId: string | null) {
  const { isAuthenticated } = useAuthReady();

@@ -308,7 +297,7 @@ export function useTranscriptUploadAudio() {
  );
 }

-export function useTranscriptWaveform(transcriptId: NonEmptyString | null) {
+export function useTranscriptWaveform(transcriptId: string | null) {
  return $api.useQuery(
    "get",
    "/v1/transcripts/{transcript_id}/audio/waveform",
@@ -323,21 +312,7 @@ export function useTranscriptWaveform(transcriptId: NonEmptyString | null) {
  );
 }

-export const invalidateTranscriptWaveform = (
-  queryClient: QueryClient,
-  transcriptId: NonEmptyString,
-) =>
-  queryClient.invalidateQueries({
-    queryKey: $api.queryOptions(
-      "get",
-      "/v1/transcripts/{transcript_id}/audio/waveform",
-      {
-        params: { path: { transcript_id: transcriptId } },
-      },
-    ).queryKey,
-  });
-
-export function useTranscriptMP3(transcriptId: NonEmptyString | null) {
+export function useTranscriptMP3(transcriptId: string | null) {
  const { isAuthenticated } = useAuthReady();

  return $api.useQuery(
@@ -354,7 +329,7 @@ export function useTranscriptMP3(transcriptId: NonEmptyString | null) {
  );
 }

-export function useTranscriptTopics(transcriptId: NonEmptyString | null) {
+export function useTranscriptTopics(transcriptId: string | null) {
  return $api.useQuery(
    "get",
    "/v1/transcripts/{transcript_id}/topics",
@@ -369,23 +344,7 @@ export function useTranscriptTopics(transcriptId: NonEmptyString | null) {
  );
 }

-export const invalidateTranscriptTopics = (
-  queryClient: QueryClient,
-  transcriptId: NonEmptyString,
-) =>
-  queryClient.invalidateQueries({
-    queryKey: $api.queryOptions(
-      "get",
-      "/v1/transcripts/{transcript_id}/topics",
-      {
-        params: { path: { transcript_id: transcriptId } },
-      },
-    ).queryKey,
-  });
-
-export function useTranscriptTopicsWithWords(
-  transcriptId: NonEmptyString | null,
-) {
+export function useTranscriptTopicsWithWords(transcriptId: string | null) {
  const { isAuthenticated } = useAuthReady();

  return $api.useQuery(
@@ -403,7 +362,7 @@ export function useTranscriptTopicsWithWords(
 }

 export function useTranscriptTopicsWithWordsPerSpeaker(
-  transcriptId: NonEmptyString | null,
+  transcriptId: string | null,
  topicId: string | null,
 ) {
  const { isAuthenticated } = useAuthReady();
@@ -425,7 +384,7 @@ export function useTranscriptTopicsWithWordsPerSpeaker(
  );
 }

-export function useTranscriptParticipants(transcriptId: NonEmptyString | null) {
+export function useTranscriptParticipants(transcriptId: string | null) {
  const { isAuthenticated } = useAuthReady();

  return $api.useQuery(
@@ -608,20 +567,6 @@ export function useTranscriptSpeakerMerge() {
  );
 }

-export function useMeetingStartRecording() {
-  const { setError } = useError();
-
-  return $api.useMutation(
-    "post",
-    "/v1/meetings/{meeting_id}/recordings/start",
-    {
-      onError: (error) => {
-        setError(error as Error, "Failed to start recording");
-      },
-    },
-  );
-}
-
 export function useMeetingAudioConsent() {
  const { setError } = useError();

--- a/www/app/lib/transcript.ts
+++ b/www/app/lib/transcript.ts
@@ -1,6 +1,5 @@
 import { components } from "../reflector-api";

-type ApiTranscriptStatus =
-  components["schemas"]["GetTranscriptWithParticipants"]["status"];
+type ApiTranscriptStatus = components["schemas"]["GetTranscript"]["status"];

 export type TranscriptStatus = ApiTranscriptStatus;
--- a/www/app/lib/types.ts
+++ b/www/app/lib/types.ts
@@ -89,5 +89,3 @@ export const assertMeetingId = (s: string): MeetingId => {
  // just cast for now
  return nes as MeetingId;
 };
-
-export type DailyRecordingType = "cloud" | "raw-tracks";
--- a/www/app/reflector-api.d.ts
+++ b/www/app/reflector-api.d.ts
@@ -75,31 +75,6 @@ export interface paths {
    patch: operations["v1_meeting_deactivate"];
    trace?: never;
  };
-  "/v1/meetings/{meeting_id}/recordings/start": {
-    parameters: {
-      query?: never;
-      header?: never;
-      path?: never;
-      cookie?: never;
-    };
-    get?: never;
-    put?: never;
-    /**
-     * Start Recording
-     * @description Start cloud or raw-tracks recording via Daily.co REST API.
-     *
-     *     Both cloud and raw-tracks are started via REST API to bypass enable_recording limitation of allowing only 1 recording at a time.
-     *     Uses different instanceIds for cloud vs raw-tracks (same won't work)
-     *
-     *     Note: No authentication required - anonymous users supported. TODO this is a DOS vector
-     */
-    post: operations["v1_start_recording"];
-    delete?: never;
-    options?: never;
-    head?: never;
-    patch?: never;
-    trace?: never;
-  };
  "/v1/rooms": {
    parameters: {
      query?: never;
@@ -1569,10 +1544,6 @@ export interface components {
       * @enum {string}
       */
      platform: "whereby" | "daily";
-      /** Daily Composed Video S3 Key */
-      daily_composed_video_s3_key?: string | null;
-      /** Daily Composed Video Duration */
-      daily_composed_video_duration?: number | null;
    };
    /** MeetingConsentRequest */
    MeetingConsentRequest: {
@@ -1847,19 +1818,6 @@ export interface components {
      /** Words */
      words: components["schemas"]["Word"][];
    };
-    /** StartRecordingRequest */
-    StartRecordingRequest: {
-      /**
-       * Type
-       * @enum {string}
-       */
-      type: "cloud" | "raw-tracks";
-      /**
-       * Instanceid
-       * Format: uuid
-       */
-      instanceId: string;
-    };
    /** Stream */
    Stream: {
      /** Stream Id */
@@ -2168,43 +2126,6 @@ export interface operations {
      };
    };
  };
-  v1_start_recording: {
-    parameters: {
-      query?: never;
-      header?: never;
-      path: {
-        meeting_id: string;
-      };
-      cookie?: never;
-    };
-    requestBody: {
-      content: {
-        "application/json": components["schemas"]["StartRecordingRequest"];
-      };
-    };
-    responses: {
-      /** @description Successful Response */
-      200: {
-        headers: {
-          [name: string]: unknown;
-        };
-        content: {
-          "application/json": {
-            [key: string]: unknown;
-          };
-        };
-      };
-      /** @description Validation Error */
-      422: {
-        headers: {
-          [name: string]: unknown;
-        };
-        content: {
-          "application/json": components["schemas"]["HTTPValidationError"];
-        };
-      };
-    };
-  };
  v1_rooms_list: {
    parameters: {
      query?: {
--- a/www/package.json
+++ b/www/package.json
@@ -46,7 +46,6 @@
    "react-markdown": "^9.0.0",
    "react-qr-code": "^2.0.12",
    "react-select-search": "^4.1.7",
-    "react-uuid-hook": "^0.0.6",
    "redlock": "5.0.0-beta.2",
    "remeda": "^2.31.1",
    "sass": "^1.63.6",
--- a/www/pnpm-lock.yaml
+++ b/www/pnpm-lock.yaml
@@ -106,9 +106,6 @@ importers:
      react-select-search:
        specifier: ^4.1.7
        version: 4.1.8(prop-types@15.8.1)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
-      react-uuid-hook:
-        specifier: ^0.0.6
-        version: 0.0.6(react@18.3.1)
      redlock:
        specifier: 5.0.0-beta.2
        version: 5.0.0-beta.2
@@ -7631,14 +7628,6 @@ packages:
      "@types/react":
        optional: true

-  react-uuid-hook@0.0.6:
-    resolution:
-      {
-        integrity: sha512-u9+EvFbqpWfLE/ReYFry0vYu1BAg1fY9ekr0XLSDNnfWyrnVFytpurwz5qYsIB0psevuvrpZHIcvu7AjUwqinA==,
-      }
-    peerDependencies:
-      react: ">=16.8.0"
-
  react@18.3.1:
    resolution:
      {
@@ -8782,13 +8771,6 @@ packages:
        integrity: sha512-Fykw5U4eZESbq739BeLvEBFRuJODfrlmjx5eJux7W817LjRaq4b7/i4t2zxQmhcX+fAj4nMfRdTzO4tmwLKn0w==,
      }

-  uuid@13.0.0:
-    resolution:
-      {
-        integrity: sha512-XQegIaBTVUjSHliKqcnFqYypAd4S+WCYt5NIeRs6w/UAry7z8Y9j5ZwRRL4kzq9U3sD6v+85er9FvkEaBpji2w==,
-      }
-    hasBin: true
-
  uuid@8.3.2:
    resolution:
      {
@@ -14588,11 +14570,6 @@ snapshots:
    optionalDependencies:
      "@types/react": 18.2.20

-  react-uuid-hook@0.0.6(react@18.3.1):
-    dependencies:
-      react: 18.3.1
-      uuid: 13.0.0
-
  react@18.3.1:
    dependencies:
      loose-envify: 1.4.0
@@ -15424,8 +15401,6 @@ snapshots:

  uuid-validate@0.0.3: {}

-  uuid@13.0.0: {}
-
  uuid@8.3.2: {}

  uuid@9.0.1: {}