switch to pyside6 essentials instead of full pyside6

chore: bump yt-dlp to 2026.3.17

.github/workflows/build-release.yml

@@ -107,6 +107,12 @@ jobs:
           echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
           echo "version=${TAG#v}" >> "$GITHUB_OUTPUT"
 
+      - name: Write bundled version file
+        shell: bash
+        run: |
+          set -euo pipefail
+          printf '%s\n' "${{ steps.version.outputs.version }}" > version.txt
+
       - uses: actions/setup-python@v6
         with:
           python-version: "3.12"
@@ -123,14 +129,15 @@ jobs:
         shell: pwsh
         run: |
           $ErrorActionPreference = "Stop"
-          pyinstaller --noconfirm --onefile --noconsole --name "ytpl-sync" --distpath "dist/pyinstaller" --workpath "build/pyinstaller" --specpath "build/pyinstaller" --paths "src" "ytpl-sync-entry.py"
+          $ws = "${{ github.workspace }}"
+          pyinstaller --noconfirm --onefile --noconsole --name "ytpl-sync" --icon "$ws/assets/icon.ico" --add-data "$ws/assets/icon.png;assets" --add-data "$ws/version.txt;." --distpath "dist/pyinstaller" --workpath "build/pyinstaller" --specpath "build/pyinstaller" --paths "src" "ytpl-sync-entry.py"
 
       - name: Build binary (Linux)
         if: runner.os == 'Linux'
         shell: bash
         run: |
           set -euo pipefail
-          pyinstaller --noconfirm --onefile --noconsole --name "ytpl-sync" --distpath "dist/pyinstaller" --workpath "build/pyinstaller" --specpath "build/pyinstaller" --paths "src" "ytpl-sync-entry.py"
+          pyinstaller --noconfirm --onefile --noconsole --name "ytpl-sync" --icon "${GITHUB_WORKSPACE}/assets/icon.png" --add-data "${GITHUB_WORKSPACE}/assets/icon.png:assets" --add-data "${GITHUB_WORKSPACE}/version.txt:." --distpath "dist/pyinstaller" --workpath "build/pyinstaller" --specpath "build/pyinstaller" --paths "src" "ytpl-sync-entry.py"
 
       - name: Stage package
         shell: bash
@@ -252,7 +259,7 @@ jobs:
         with:
           path: artifacts
 
-      - name: Generate release notes (since last tag)
+      - name: Generate release notes
         shell: bash
         env:
           TAG: ${{ inputs.tag }}
@@ -260,10 +267,13 @@ jobs:
           set -euo pipefail
           git fetch --tags --force
 
+          VERSION="${TAG#v}"
+          REPO="${GITHUB_REPOSITORY}"
+
           prev_tag="$(git tag --sort=-creatordate | grep -Fxv "$TAG" | head -n 1 || true)"
 
           {
-            echo "## Changes"
+            echo "### Changes"
             echo
             if [[ -n "$prev_tag" ]]; then
               echo "Compared to \`$prev_tag\`:"
@@ -274,6 +284,15 @@ jobs:
               echo
               git log "${TAG}" --no-merges --pretty=format:'- %s (%h)' || true
             fi
+
+            echo
+            echo
+            echo "### Reports"
+            echo "![Downloads](https://img.shields.io/github/downloads/${REPO}/${TAG}/total?style=flat-square&logo=github&label=Downloads)"
+            echo "![Linux FFmpeg](https://img.shields.io/github/downloads/${REPO}/${TAG}/ytpl-sync-linux-${VERSION}-ffmpeg.tar.gz?style=flat-square&label=Linux+FFmpeg)"
+            echo "![Linux](https://img.shields.io/github/downloads/${REPO}/${TAG}/ytpl-sync-linux-${VERSION}.tar.gz?style=flat-square&label=Linux)"
+            echo "![Windows FFmpeg](https://img.shields.io/github/downloads/${REPO}/${TAG}/ytpl-sync-windows-${VERSION}-ffmpeg.zip?style=flat-square&label=Windows+FFmpeg)"
+            echo "![Windows](https://img.shields.io/github/downloads/${REPO}/${TAG}/ytpl-sync-windows-${VERSION}.zip?style=flat-square&label=Windows)"
             echo
           } > release-notes.md
 

.github/workflows/unit-tests.yml

@@ -34,10 +34,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.11'
           cache: 'pip'

.github/workflows/update-yt-dlp.yml

@@ -0,0 +1,92 @@
+name: update yt-dlp
+on:
+  schedule:
+    - cron: "0 10 * * *"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+concurrency:
+  group: refresh-yt-dlp-pr
+  cancel-in-progress: true
+
+jobs:
+  refresh:
+    name: Update yt-dlp dependency
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Check and bump yt-dlp
+        id: detect
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          python - <<'PY' >> "$GITHUB_OUTPUT"
+          from __future__ import annotations
+
+          import json
+          import re
+          from pathlib import Path
+          from urllib.request import urlopen
+
+          def version_tuple(text: str) -> tuple[int, ...]:
+              parts = re.findall(r"\d+", text)
+              return tuple(int(p) for p in parts)
+
+          pyproject = Path("pyproject.toml")
+          text = pyproject.read_text(encoding="utf-8")
+
+          dep_match = re.search(r'^\s*"yt-dlp>=(?P<version>[^"]+)"\s*,?\s*$', text, re.MULTILINE)
+          if not dep_match:
+              raise SystemExit("Could not find yt-dlp dependency in pyproject.toml")
+
+          dep_version = dep_match.group("version")
+
+          latest_payload = urlopen("https://pypi.org/pypi/yt-dlp/json", timeout=30)
+          latest_version = json.load(latest_payload)["info"]["version"]
+
+          needs_update = version_tuple(latest_version) > version_tuple(dep_version)
+
+          print(f"needs_update={'true' if needs_update else 'false'}")
+          print(f"latest_yt_dlp={latest_version}")
+          print(f"current_yt_dlp={dep_version}")
+
+          if needs_update:
+              text = re.sub(
+                  r'(^\s*"yt-dlp>=)[^"]+(")',
+                  rf'\g<1>{latest_version}\2',
+                  text,
+                  flags=re.MULTILINE,
+              )
+              pyproject.write_text(text, encoding="utf-8")
+          PY
+
+      - name: Create or update pull request
+        if: steps.detect.outputs.needs_update == 'true'
+        uses: peter-evans/create-pull-request@v8
+        with:
+          branch: chore/refresh-yt-dlp
+          commit-message: "chore: bump yt-dlp to ${{ steps.detect.outputs.latest_yt_dlp }}"
+          title: "chore: bump yt-dlp to ${{ steps.detect.outputs.latest_yt_dlp }}"
+          body: |
+            Automated yt-dlp dependency refresh.
+
+            - Current version: `${{ steps.detect.outputs.current_yt_dlp }}`
+            - Latest version: `${{ steps.detect.outputs.latest_yt_dlp }}`
+          labels: deps
+          delete-branch: false
+          add-paths: |
+            pyproject.toml

.gitignore

@@ -7,7 +7,8 @@ config/yt-playlist-config.json
 /*/tmp*
 *.code-workspace
 /bin/*
-/app/data
+/db/*
+plans
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

README.md

@@ -1,35 +1,37 @@
 # YouTube Playlist Sync
 
-[![Build Release](https://github.com/darkzoul5/YoutubePlaylistDownloader/actions/workflows/build-release.yml/badge.svg)](https://github.com/darkzoul5/YoutubePlaylistDownloader/actions/workflows/build-release.yml)
-[![Unit tests](https://github.com/darkzoul5/YoutubePlaylistDownloader/actions/workflows/unit-tests.yml/badge.svg?branch=main)](https://github.com/darkzoul5/YoutubePlaylistDownloader/actions/workflows/unit-tests.yml)
+![Release](https://img.shields.io/github/v/release/darkzoul5/YoutubePlaylistSync?style=flat-square&label=Release)
+![Build-Release](https://img.shields.io/github/actions/workflow/status/darkzoul5/YoutubePlaylistSync/build-release.yml?style=flat-square&label=Build-Release)
+![Unit Tests](https://img.shields.io/github/actions/workflow/status/darkzoul5/YoutubePlaylistSync/unit-tests.yml?style=flat-square&label=unit-tests)
 
 A cross-platform tool for downloading and keeping in sync a local copy of entire YouTube playlists as MP3 or MP4 files, using [yt-dlp](https://github.com/yt-dlp/yt-dlp) & [ffmpeg](https://ffmpeg.org/).
 
 Supports audio, video, or both download modes, music and videos are numbered as they are on your youtube playlist, playlist cleanup, and configurable parallel download options.
 Local-first YouTube playlist synchronization client.
 
-## What’s Included
+## What's Included
 
+- GUI (PySide6 Essentials) playlist manager + sync runner
 - Scanner (yt-dlp extract-only), diff engine, filesystem scan
 - Safe reordering via two-pass rename, recycle deletions
 - Async download queue with simple retry (yt-dlp Python API)
-- SQLite metadata; DB updates on rename/download/delete; `last_sync`
-- Optional event publishing for future GUI/logs
+- SQLite metadata (`last_sync`, download state)
 
 ## Requirements
 
-- Python 3.10+
-- `ffmpeg` (needed for `audio` and `both` modes)
+- If you download a `-ffmpeg` release: no extra dependencies
+- If you download a non-ffmpeg release: install `ffmpeg` and ensure it's on PATH (needed for `audio` and `both` modes)
 
-Quick start:
+## Download
 
-Download the latest release from [releases](https://github.com/darkzoul5/YoutubePlaylistSyncThing/releases) page
+Download the latest release from this repo's Releases page and pick one:
+
+- `ytpl-sync-windows-{version}-ffmpeg.zip` / `ytpl-sync-linux-{version}-ffmpeg.tar.gz` (ffmpeg bundled)
+- `ytpl-sync-windows-{version}.zip` / `ytpl-sync-linux-{version}.tar.gz` (no ffmpeg bundled)
 
 ## Configure
 
-On first run, the app will auto-create a default `config/yt-playlist-config.json` (if missing).
-
-Create/edit `config/yt-playlist-config.json`:
+Application uses a json config that canbe edited from UI or manually
 
 ```json
 {
@@ -42,33 +44,24 @@ Create/edit `config/yt-playlist-config.json`:
       "url": "https://www.youtube.com/playlist?list=YOUR_PLAYLIST_ID",
       "download_mode": "video",
       "max_download_quality": "1080p",
-      "save_path": "./downloads"
+      "save_path": "./downloads",
+      "name": "my favorite playlist"
     }
   ]
 }
 ```
 
-Defaults:
-
-- `ffmpeg_path`: `./bin/ffmpeg.exe` (Windows) or `./bin/ffmpeg` (Linux)
-- `download_mode`: `video`
-- `max_download_quality`: `1080p`
-- `save_path`: `./downloads`
-- `max_parallel_downloads`: `2`
-- `retry_max_retries`: `2`
-- `retry_delay_seconds`: `1.5`
-
 `max_download_quality`:
 
 - Limits yt-dlp download quality (e.g. `"2160p"`, `"1440p"`, `"1080p"`, `"720p"`, `"360p"`). This only affects the downloaded video format selection.
-- Use `"best"` (or `"auto"`) for no height cap (highest available muxed MP4).
+- Use `"best"` for no height cap (highest available).
 - If the requested max quality isn't available for a video, the best available quality is chosen.
 
 `download_mode`:
 
-- `video`: download playlist videos as muxed `.mp4` (no ffmpeg processing)
-- `audio`: download muxed `.mp4`, extract `.mp3`, delete the `.mp4`
-- `both`: download muxed `.mp4`, extract `.mp3`, keep both files
+- `video`: download playlist videos as `.mp4` (no ffmpeg required)
+- `audio`: download video, extract `.mp3`, delete the video file
+- `both`: download video, extract `.mp3`, keep both files
 
 Queue / retry:
 
@@ -78,32 +71,24 @@ Queue / retry:
 
 ## Run
 
-- Compute-only:
+- Run `ytpl-sync.exe` (GUI).
 
-```bash
-python -m app.cli
-```
+## Tray
 
-- Apply actions:
-
-```bash
-python -m app.cli --apply
-```
-
-- Single playlist (0-based index):
-
-```bash
-python -m app.cli --apply --playlist 0
-```
+- The app supports minimizing to tray on close if the OS provides a system tray; use the tray icon menu to quit.
+- Tray behavior settings (Settings page):
+  - `close_to_tray`: close hides to tray (keeps running).
+  - `minimize_to_tray`: minimize hides to tray.
+  - `start_minimized_to_tray`: start hidden in tray.
 
 ## Data & Layout
 
-- Database: `app/data/app.db`
+- Database: `db/app.db`
 - Outputs: `<save_path>/audio` and/or `<save_path>/video`
 - Recycle bin: `<save_path>/.recycle/{audio,video}`
 
 ## Roadmap (short)
 
 - Scheduler (periodic sync), richer retries/logging
-- GUI (PySide6) wired to EventBus
 - Enhanced config validation
+- UX polish (settings, progress, error messages)

config/yt-playlist-config.example.json

@@ -3,12 +3,20 @@
   "max_parallel_downloads": 2,
   "retry_max_retries": 2,
   "retry_delay_seconds": 1.5,
+  "ui": {
+    "tray": {
+      "close_to_tray": false,
+      "minimize_to_tray": false,
+      "start_minimized_to_tray": false
+    }
+  },
   "playlists": [
     {
       "url": "https://www.youtube.com/playlist?list=YOUR_PLAYLIST_ID_HERE",
       "download_mode": "video",
       "max_download_quality": "1080p",
-      "save_path": "./downloads"
+      "save_path": "./downloads",
+      "name": "my favorite playlist"
     }
   ]
 }

plans/python_youtube_playlist_sync_conversion_plan.md

@@ -1,8 +1,5 @@
 # YouTube Playlist Sync — Project Conversion Plan
 
-Repository:
-
-- [darkzoul5/YoutubePlaylistDownloader](https://github.com/darkzoul5/YoutubePlaylistDownloader?utm_source=chatgpt.com)
 
 ---
 

pyproject.toml

@@ -4,8 +4,8 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "ytpl-sync"
-version = "1.1.1"
-description = "YouTube playlist Sync Thing"
+version = "2.1.1"
+description = "YouTube playlist Sync"
 readme = "README.md"
 authors = [ { name = "Dark_Zoul" } ]
 license = { file = "LICENSE" }
@@ -13,7 +13,7 @@ keywords = ["youtube", "yt-dlp", "playlist", "sync"]
 requires-python = ">=3.10"
 dependencies = [
 	"yt-dlp>=2026.3.17",
-    "PySide6",
+    "PySide6_Essentials>=6.11.1",
 ]
 [project.optional-dependencies]
 test = [
@@ -23,7 +23,7 @@ test = [
 ]
 
 [project.urls]
-Home = "https://github.com/darkzoul5/YoutubePlaylistSyncThing"
+Home = "https://github.com/darkzoul5/YoutubePlaylistSync"
 
 [project.scripts]
 ytpl-sync = "app.cli:main"

src/app/cli.py

@@ -19,7 +19,7 @@ from .core.utils.logging_setup import configure_logging
 def main(argv: list[str] | None = None) -> int:
     parser = argparse.ArgumentParser(description="YouTube Playlist Sync — compute/apply actions")
     parser.add_argument("--apply", action="store_true", help="Apply actions (otherwise compute-only)")
-    parser.add_argument("--db", type=Path, default=Path("app/data/app.db"), help="Path to SQLite database")
+    parser.add_argument("--db", type=Path, default=Path("db/app.db"), help="Path to SQLite database")
     parser.add_argument("--playlist", type=int, default=None, help="Only run for a specific playlist index (0-based)")
     parser.add_argument("--verbose", action="store_true", help="Print detailed events (rename/recycle/start)")
     parser.add_argument("--debug", action="store_true", help="Enable debug logging to console + app/data/app.log")

src/app/core/database/db.py

@@ -33,6 +33,13 @@ CREATE TABLE IF NOT EXISTS playlist_items (
 
 
 class Database:
+    """Thin SQLite persistence layer for playlists and playlist items.
+
+    The database stores the local synchronization state so the sync pipeline
+    can compare remote playlist data with what has already been downloaded,
+    renamed, or marked as removed.
+    """
+
     def __init__(self, db_path: Path) -> None:
         self.path = db_path
         self.path.parent.mkdir(parents=True, exist_ok=True)
@@ -41,10 +48,12 @@ class Database:
         self._migrate()
 
     def _migrate(self) -> None:
+        """Create the schema if this database has not been initialized yet."""
         with self._conn:
             self._conn.executescript(SCHEMA)
 
     def upsert_playlist_items(self, rows: Iterable[tuple]):
+        """Insert or refresh the cached metadata for playlist entries."""
         sql = (
             "INSERT INTO playlist_items (playlist_id, video_id, title, playlist_index, local_filename, downloaded, last_seen) "
             "VALUES (?, ?, ?, ?, ?, ?, datetime('now')) "
@@ -56,6 +65,7 @@ class Database:
             self._conn.executemany(sql, rows)
 
     def get_items_index(self, playlist_id: str) -> dict[str, sqlite3.Row]:
+        """Return all cached items for a playlist keyed by video id."""
         cur = self._conn.execute(
             "SELECT * FROM playlist_items WHERE playlist_id = ?",
             (playlist_id,),
@@ -63,6 +73,7 @@ class Database:
         return {row["video_id"]: row for row in cur.fetchall()}
 
     def upsert_playlist(self, *, id: str, name: str | None, url: str, path: str, mode: str, auto_sync: int = 0, sync_interval_minutes: int = 0) -> None:
+        """Insert or update the playlist configuration row."""
         sql = (
             "INSERT INTO playlists (id, name, url, path, mode, auto_sync, sync_interval_minutes, last_sync) "
             "VALUES (?, ?, ?, ?, ?, ?, ?, NULL) "
@@ -73,6 +84,7 @@ class Database:
             self._conn.execute(sql, (id, name, url, path, mode, auto_sync, sync_interval_minutes))
 
     def update_local_filename(self, playlist_id: str, video_id: str, local_filename: str | None) -> None:
+        """Record the current filename associated with a playlist item."""
         with self._conn:
             self._conn.execute(
                 "UPDATE playlist_items SET local_filename = ?, last_seen = datetime('now') WHERE playlist_id = ? AND video_id = ?",
@@ -80,6 +92,7 @@ class Database:
             )
 
     def mark_downloaded(self, playlist_id: str, video_id: str, downloaded: bool) -> None:
+        """Mark whether a playlist item is present on disk."""
         with self._conn:
             self._conn.execute(
                 "UPDATE playlist_items SET downloaded = ?, last_seen = datetime('now') WHERE playlist_id = ? AND video_id = ?",
@@ -87,6 +100,7 @@ class Database:
             )
 
     def clear_file_state(self, playlist_id: str, video_id: str) -> None:
+        """Clear filename and downloaded flags after a deletion or recycle."""
         with self._conn:
             self._conn.execute(
                 "UPDATE playlist_items SET local_filename = NULL, downloaded = 0, last_seen = datetime('now') WHERE playlist_id = ? AND video_id = ?",
@@ -94,6 +108,7 @@ class Database:
             )
 
     def set_playlist_last_sync(self, playlist_id: str) -> None:
+        """Store the timestamp of the most recent successful sync."""
         with self._conn:
             self._conn.execute(
                 "UPDATE playlists SET last_sync = datetime('now') WHERE id = ?",
@@ -101,6 +116,7 @@ class Database:
             )
 
     def get_playlist_last_sync(self, playlist_id: str) -> str | None:
+        """Return the last sync timestamp for a playlist, if any."""
         cur = self._conn.execute("SELECT last_sync FROM playlists WHERE id = ?", (playlist_id,))
         row = cur.fetchone()
         if not row:

src/app/core/download/queue_manager.py

@@ -37,6 +37,13 @@ class DownloadJob:
 
 
 class QueueManager:
+    """A small asyncio worker pool for download jobs.
+
+    Jobs are pushed into a shared queue and processed by a fixed number of
+    background tasks. This keeps the downloader concurrency bounded without
+    forcing the caller to manage worker lifetimes directly.
+    """
+
     def __init__(self, concurrency: int = 2) -> None:
         self._queue: "asyncio.Queue[DownloadJob]" = asyncio.Queue()
         self._concurrency = max(1, concurrency)
@@ -44,6 +51,7 @@ class QueueManager:
         self._stopped = asyncio.Event()
 
     async def start(self, worker_coro):
+        """Start the worker tasks that drain the queue."""
         async def runner(idx: int):
             while not self._stopped.is_set():
                 job = await self._queue.get()
@@ -55,13 +63,16 @@ class QueueManager:
         self._workers = [asyncio.create_task(runner(i)) for i in range(self._concurrency)]
 
     async def stop(self):
+        """Cancel all worker tasks and mark the queue as stopped."""
         self._stopped.set()
         for w in self._workers:
             w.cancel()
         self._workers.clear()
 
     async def enqueue(self, job: DownloadJob):
+        """Add a job to the shared queue."""
         await self._queue.put(job)
 
     async def join(self) -> None:
+        """Block until every queued job has been acknowledged."""
         await self._queue.join()

src/app/core/scanner/playlist_scanner.py

@@ -8,16 +8,19 @@ from ..models import PlaylistItem
 
 class PlaylistScanner:
     """
-    Fetches remote playlist entries using yt-dlp (no downloads).
+    Fetches remote playlist entries using yt-dlp without downloading media.
 
-    This class intentionally avoids strict dependencies at import time. If
-    yt_dlp is unavailable, call sites should handle the raised ImportError.
+    The scanner is deliberately lightweight: it extracts remote metadata only
+    and leaves persistence, diffing, and download decisions to higher layers.
+    Import-time dependency checks are avoided so the rest of the application can
+    still start in environments where yt-dlp is unavailable.
     """
 
     def __init__(self) -> None:
         pass
 
     def scan(self, playlist_url: str, playlist_id: str, *, ffmpeg_path: Optional[str] = None) -> List[PlaylistItem]:
+        """Return the current remote playlist entries as `PlaylistItem` records."""
         try:
             import yt_dlp  # type: ignore
         except Exception as exc:  # pragma: no cover - environment dependent

src/app/core/sync/executor.py

@@ -18,12 +18,25 @@ from ..utils.rate_limit import is_youtube_rate_limit_error
 
 
 class ActionExecutor:
+    """Apply sync actions against the filesystem and persist their outcome.
+
+    The executor is the imperative half of the sync pipeline: it publishes
+    lifecycle events, performs safe renames and deletions, coordinates the
+    download queue, and updates the database after each job completes.
+    """
+
     def __init__(self, db: Database, concurrency: int = 2, event_bus: EventBus | None = None) -> None:
         self.concurrency = max(1, concurrency)
         self.db = db
         self.bus = event_bus
 
     async def execute(self, actions: Iterable[SyncAction], playlist_cfg: dict, *, cancel_check=None, pause_check=None) -> None:
+        """Execute a batch of sync actions for one playlist.
+
+        The workflow is intentionally ordered: announce the sync, wait for any
+        pause state to clear, validate dependencies, perform renames, recycle
+        deletions, and finally run downloads with bounded concurrency.
+        """
         actions_list = list(actions)
         playlist_id = extract_playlist_id(playlist_cfg.get("url", "")) or playlist_cfg.get("url", "")
         start = time.monotonic()
@@ -123,6 +136,7 @@ class ActionExecutor:
             ensure_ffmpeg_available(str(ffmpeg_hint) if ffmpeg_hint is not None else None)
 
     async def _apply_renames(self, actions: Iterable[SyncAction], audio_root: Path, video_root: Path, playlist_cfg: dict) -> None:
+        """Apply all rename actions in batches separated by output type."""
         playlist_id = extract_playlist_id(playlist_cfg.get("url", "")) or playlist_cfg.get("url", "")
         audio_renames = []
         video_renames = []
@@ -152,6 +166,7 @@ class ActionExecutor:
                     await self.bus.publish("RenameApplied", {"playlist_id": playlist_id, "video_id": a.item.video_id, "to": a.to_name})
 
     def _apply_deletions(self, actions: Iterable[SyncAction], audio_root: Path, video_root: Path, playlist_cfg: dict) -> None:
+        """Recycle or remove files that no longer belong to the playlist."""
         playlist_id = extract_playlist_id(playlist_cfg.get("url", "")) or playlist_cfg.get("url", "")
         recycle_audio = audio_root.parent / ".recycle" / "audio"
         recycle_video = video_root.parent / ".recycle" / "video"
@@ -198,6 +213,7 @@ class ActionExecutor:
         cancel_check=None,
         pause_check=None,
     ) -> None:
+        """Queue and run download jobs, then persist their final state."""
         playlist_id = extract_playlist_id(playlist_cfg.get("url", "")) or playlist_cfg.get("url", "")
         loop = asyncio.get_running_loop()
         concurrency_cfg = playlist_cfg.get("max_parallel_downloads", self.concurrency)

src/app/core/sync/service.py

@@ -13,6 +13,13 @@ from ..utils.yt import extract_playlist_id
 
 
 class SyncService:
+    """High-level orchestration for a single playlist sync pass.
+
+    The service pulls the latest remote playlist snapshot, persists the
+    playlist and item metadata in the database, and asks the diff engine to
+    compare the remote state with the local filesystem.
+    """
+
     def __init__(self, db: Database) -> None:
         self.db = db
         self.scanner = PlaylistScanner()
@@ -28,6 +35,12 @@ class SyncService:
         return [".mp4"]
 
     def sync_from_config(self, playlist_cfg: dict) -> List[SyncAction]:
+        """Return the sync actions required to bring one playlist in sync.
+
+        This method does not apply any changes itself. It normalizes the
+        configuration, refreshes the playlist/item records in SQLite, and then
+        computes the actions needed for the configured download mode.
+        """
         url: str = playlist_cfg.get("url")
         mode: str = playlist_cfg.get("download_mode", "video")
         save_path = Path(playlist_cfg.get("save_path", "./downloads")).resolve()

src/app/core/utils/version.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+
+def _resource_base() -> Path:
+    # PyInstaller sets sys._MEIPASS to the temp extraction dir.
+    base = getattr(sys, "_MEIPASS", None)
+    if base:
+        return Path(str(base))
+    return Path.cwd()
+
+
+def _read_text(path: Path) -> str | None:
+    try:
+        if path.exists():
+            text = path.read_text(encoding="utf-8").strip()
+            return text or None
+    except Exception:
+        pass
+    return None
+def get_app_version() -> str:
+    """
+    Returns the packaged app version.
+
+    In release builds this reads from `version.txt` bundled into the EXE.
+    """
+    candidates = [
+        Path("version.txt"),
+        _resource_base() / "version.txt",
+    ]
+    for candidate in candidates:
+        text = _read_text(candidate)
+        if text:
+            return text
+
+    return "dev"

src/app/gui/app_icon.py

@@ -0,0 +1,46 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+from PySide6 import QtGui, QtWidgets
+
+
+def _resource_base() -> Path:
+    # PyInstaller sets sys._MEIPASS to the temp extraction dir.
+    base = getattr(sys, "_MEIPASS", None)
+    if base:
+        return Path(str(base))
+    return Path.cwd()
+
+
+def load_app_icon() -> QtGui.QIcon:
+    """
+    Best-effort app icon loader.
+
+    Looks for `assets/icon.png` in the current working directory (dev),
+    or in the PyInstaller bundle root (packaged).
+    """
+    candidates = [
+        Path("assets/icon.png"),
+        _resource_base() / "assets" / "icon.png",
+    ]
+    for p in candidates:
+        try:
+            if p.exists():
+                icon = QtGui.QIcon(str(p))
+                if not icon.isNull():
+                    return icon
+        except Exception:
+            pass
+
+    # Fallback to a platform theme icon (Linux) or a generic icon.
+    try:
+        themed = QtGui.QIcon.fromTheme("applications-multimedia")
+        if not themed.isNull():
+            return themed
+    except Exception:
+        pass
+
+    return QtWidgets.QApplication.style().standardIcon(QtWidgets.QStyle.StandardPixmap.SP_ComputerIcon)
+

src/app/gui/main.py

@@ -8,11 +8,14 @@ from PySide6 import QtCore, QtGui, QtWidgets
 from ..config.settings import Settings
 from ..core.events.event_bus import EventBus
 from .bus_bridge import BusBridge
+from .app_icon import load_app_icon
+from .config_store import load_config
 from .runner import SyncRequest, SyncRunner
 from .pages.playlists import PlaylistManagerPage
 from .pages.queue import QueuePage
 from .pages.logs import LogsPage
 from .pages.settings import SettingsPage
+from .pages.about import AboutPage
 
 
 class MainWindow(QtWidgets.QMainWindow):
@@ -20,6 +23,7 @@ class MainWindow(QtWidgets.QMainWindow):
         super().__init__()
         self.setWindowTitle("ytpl-sync")
         self.resize(1100, 700)
+        self.setWindowIcon(load_app_icon())
 
         self._settings = Settings()
         self._bus = EventBus()
@@ -29,33 +33,43 @@ class MainWindow(QtWidgets.QMainWindow):
         self._runner: SyncRunner | None = None
         self._cancel_flag: threading.Event | None = None
         self._pause_flag: threading.Event | None = None
+        self._tray: QtWidgets.QSystemTrayIcon | None = None
+        self._tray_notified = False
 
         # Sidebar navigation
         self._nav = QtWidgets.QListWidget()
         self._nav.setObjectName("sidebar")
-        self._nav.setFixedWidth(220)
         self._nav.setSpacing(2)
+        self._nav.setHorizontalScrollBarPolicy(
+            QtCore.Qt.ScrollBarPolicy.ScrollBarAlwaysOff
+        )
+        self._nav.setVerticalScrollBarPolicy(
+            QtCore.Qt.ScrollBarPolicy.ScrollBarAsNeeded
+        )
         self._nav.setSelectionMode(QtWidgets.QAbstractItemView.SelectionMode.SingleSelection)
+        self._nav.model().rowsInserted.connect(self._update_sidebar_width)
+        self._nav.model().dataChanged.connect(self._update_sidebar_width)
+        self._nav.model().rowsRemoved.connect(self._update_sidebar_width)
 
         self._stack = QtWidgets.QStackedWidget()
         self._playlists_page = PlaylistManagerPage(self._settings)
         self._queue_page = QueuePage()
         self._logs_page = LogsPage()
         self._settings_page = SettingsPage()
+        self._about_page = AboutPage()
 
         self._pages: list[QtWidgets.QWidget] = [
             self._playlists_page,
             self._queue_page,
             self._logs_page,
             self._settings_page,
+            self._about_page,
         ]
         for p in self._pages:
             self._stack.addWidget(p)
 
-        for label in ("Playlists", "Queue", "Logs", "Settings"):
-            item = QtWidgets.QListWidgetItem(label)
-            item.setSizeHint(QtCore.QSize(200, 36))
-            self._nav.addItem(item)
+        for label in ("Playlists", "Queue", "Logs", "Settings", "About"):
+            self._add_sidebar_item(label)
 
         self._nav.currentRowChanged.connect(self._stack.setCurrentIndex)
         self._nav.setCurrentRow(0)
@@ -87,6 +101,138 @@ class MainWindow(QtWidgets.QMainWindow):
         self._playlists_page.resume_requested.connect(self._resume_sync)
 
         self._refresh_queue_labels()
+        self._init_tray()
+        QtCore.QTimer.singleShot(0, self._update_sidebar_width)
+
+    def _add_sidebar_item(self, label: str) -> None:
+        item = QtWidgets.QListWidgetItem(label)
+        self._nav.addItem(item)
+        self._update_sidebar_width()
+
+    def _update_sidebar_width(self, *_args: object) -> None:
+        metrics = self._nav.fontMetrics()
+        max_text_width = 0
+        for row in range(self._nav.count()):
+            item = self._nav.item(row)
+            if item is None:
+                continue
+            max_text_width = max(max_text_width, metrics.horizontalAdvance(item.text()))
+
+        if max_text_width <= 0:
+            return
+
+        frame = self._nav.frameWidth() * 2
+        padding = 44
+        target_width = max_text_width + frame + padding
+        self._nav.setFixedWidth(max(120, min(220, target_width)))
+
+    def _tray_config(self) -> dict:
+        # Read from disk so toggles apply immediately (no restart required).
+        try:
+            cfg_path = getattr(self._settings, "path", None)
+            if cfg_path is None:
+                return {}
+            raw = load_config(cfg_path).data
+            ui = raw.get("ui")
+            ui = ui if isinstance(ui, dict) else {}
+            tray = ui.get("tray")
+            tray = tray if isinstance(tray, dict) else {}
+            return dict(tray)
+        except Exception:
+            return {}
+
+    def _close_to_tray_enabled(self) -> bool:
+        return bool(self._tray_config().get("close_to_tray", False))
+
+    def _minimize_to_tray_enabled(self) -> bool:
+        return bool(self._tray_config().get("minimize_to_tray", False))
+
+    def _start_minimized_to_tray_enabled(self) -> bool:
+        return bool(self._tray_config().get("start_minimized_to_tray", False))
+
+    def should_start_minimized_to_tray(self) -> bool:
+        return self._tray is not None and self._start_minimized_to_tray_enabled()
+
+    def _init_tray(self) -> None:
+        # Tray support is optional and platform-dependent (e.g., some Linux DEs).
+        try:
+            if not QtWidgets.QSystemTrayIcon.isSystemTrayAvailable():
+                return
+        except Exception:
+            return
+
+        icon = load_app_icon()
+        tray = QtWidgets.QSystemTrayIcon(icon, self)
+        tray.setToolTip("ytpl-sync")
+
+        menu = QtWidgets.QMenu()
+        act_toggle = menu.addAction("Show/Hide")
+        act_quit = menu.addAction("Quit")
+        tray.setContextMenu(menu)
+
+        act_toggle.triggered.connect(self._toggle_visible)
+        act_quit.triggered.connect(self._quit_from_tray)
+        tray.activated.connect(self._on_tray_activated)
+
+        tray.show()
+        self._tray = tray
+
+    def _toggle_visible(self) -> None:
+        if self.isVisible():
+            self.hide()
+        else:
+            self.show()
+            self.raise_()
+            self.activateWindow()
+
+    def _quit_from_tray(self) -> None:
+        # Ensure the closeEvent doesn't just hide the window.
+        self._tray = None
+        QtWidgets.QApplication.quit()
+
+    def _on_tray_activated(self, reason: QtWidgets.QSystemTrayIcon.ActivationReason) -> None:
+        if reason in (
+            QtWidgets.QSystemTrayIcon.ActivationReason.Trigger,
+            QtWidgets.QSystemTrayIcon.ActivationReason.DoubleClick,
+        ):
+            self._toggle_visible()
+
+    def closeEvent(self, event: QtGui.QCloseEvent) -> None:  # type: ignore[override]
+        # If tray is active and configured, close-to-tray.
+        if self._tray is not None and self._close_to_tray_enabled():
+            event.ignore()
+            self.hide()
+            if not self._tray_notified:
+                self._tray_notified = True
+                try:
+                    self._tray.showMessage(
+                        "ytpl-sync",
+                        "Still running in the tray. Use the tray icon menu to quit.",
+                        QtWidgets.QSystemTrayIcon.MessageIcon.Information,
+                        3000,
+                    )
+                except Exception:
+                    pass
+            return
+        if self._tray is not None and not self._close_to_tray_enabled():
+            # Explicitly quit, because the app may be configured to keep running without windows.
+            try:
+                event.accept()
+            except Exception:
+                pass
+            QtWidgets.QApplication.quit()
+            return
+        super().closeEvent(event)
+
+    def changeEvent(self, event: QtCore.QEvent) -> None:  # type: ignore[override]
+        try:
+            if event.type() == QtCore.QEvent.Type.WindowStateChange:
+                if self._tray is not None and self._minimize_to_tray_enabled():
+                    if bool(self.windowState() & QtCore.Qt.WindowState.WindowMinimized):
+                        QtCore.QTimer.singleShot(0, self.hide)
+        except Exception:
+            pass
+        super().changeEvent(event)
 
     def _refresh_queue_labels(self) -> None:
         try:
@@ -210,13 +356,24 @@ class MainWindow(QtWidgets.QMainWindow):
     def _apply_style(self) -> None:
         self.setStyleSheet(
             """
-            QMainWindow { background: #0f1115; color: #e6e6e6; }
-            QWidget { font-size: 13px; }
+            QMainWindow { background: #0f1218; color: #d7dce4; }
+            QWidget { font-size: 13px; color: #d7dce4; }
+            QWidget#playlistsPage,
+            QWidget#queuePage,
+            QWidget#logsPage,
+            QWidget#settingsPage,
+            QWidget#aboutPage {
+              background: #0f1218;
+            }
             QLabel#pageTitle { font-size: 18px; font-weight: 600; padding: 4px 0; }
+            QLabel#cardTitle { font-size: 15px; font-weight: 600; color: #eef2f8; }
+            QLabel[muted="true"] { color: #9aa3b2; }
+            QLabel[link="true"] { color: #6c8bff; }
+            QLabel[link="true"]:hover { color: #8ea7ff; }
 
             QListWidget#sidebar {
-              background: #0b0d11;
-              border-right: 1px solid #20242d;
+              background: #0d1015;
+              border-right: 1px solid #2a3140;
               padding: 8px;
             }
             QListWidget#sidebar::item {
@@ -225,42 +382,94 @@ class MainWindow(QtWidgets.QMainWindow):
               padding: 8px 10px;
             }
             QListWidget#sidebar::item:selected {
-              background: #1e2633;
+              background: #21304a;
               color: #ffffff;
             }
 
             QTableWidget {
-              background: #0f1115;
-              gridline-color: #20242d;
-              border: 1px solid #20242d;
+                background: #171b22;
+                gridline-color: #2a3140;
+                border: 1px solid #2a3140;
+            }
+            QTableWidget::item {
+              padding: 6px 8px;
+            }
+            QPlainTextEdit {
+              background: #11151c;
+              border: 1px solid #2a3140;
+              border-radius: 10px;
+              color: #d7dce4;
+            }
+            QScrollBar:vertical {
+              background: #0f1218;
+              width: 12px;
+              margin: 0px;
+            }
+            QScrollBar::handle:vertical {
+              background: #34465f;
+              min-height: 24px;
+              border-radius: 6px;
+            }
+            QScrollBar::handle:vertical:hover {
+              background: #456183;
+            }
+            QScrollBar::add-line:vertical,
+            QScrollBar::sub-line:vertical,
+            QScrollBar::add-page:vertical,
+            QScrollBar::sub-page:vertical {
+              background: transparent;
+              border: none;
+            }
+            QGroupBox {
+              border: 1px solid #2a3140;
+              border-radius: 12px;
+              margin-top: 14px;
+              padding: 12px;
+              background: #171b22;
+            }
+            QGroupBox::title {
+              subcontrol-origin: margin;
+              left: 12px;
+              padding: 0 6px;
+              color: #e2e7ef;
+              background: #171b22;
+            }
+            QFrame#aboutCard {
+              background: #171b22;
+              border: 1px solid #2a3140;
+              border-radius: 14px;
             }
             QHeaderView::section {
-              background: #0b0d11;
-              color: #cfd3da;
-              border: 1px solid #20242d;
+              background: #171b22;
+              color: #d7dce4;
+              border: 1px solid #2a3140;
               padding: 6px;
             }
             QPushButton {
-              background: #1e2633;
-              border: 1px solid #2a3140;
+              background: #1e2631;
+              border: 1px solid #31405a;
               padding: 6px 10px;
               border-radius: 8px;
-              color: #e6e6e6;
+              color: #d7dce4;
             }
-            QPushButton:hover { background: #243044; }
+            QPushButton:hover { background: #26344a; }
+            QPushButton:pressed { background: #1a2433; }
 
             QFrame#playlistCard {
-              background: #0b0d11;
-              border: 1px solid #20242d;
-              border-radius: 10px;
+              background: #171b22;
+              border: 1px solid #2a3140;
+              border-radius: 12px;
               padding: 10px;
             }
             QLineEdit, QComboBox {
-              background: #0f1115;
-              border: 1px solid #20242d;
+              background: #11151c;
+              border: 1px solid #2a3140;
               border-radius: 8px;
               padding: 6px 8px;
-              color: #e6e6e6;
+              color: #d7dce4;
+            }
+            QLineEdit:focus, QComboBox:focus {
+              border: 1px solid #6c8bff;
             }
             """
         )
@@ -270,7 +479,8 @@ def main() -> int:
     app = QtWidgets.QApplication(sys.argv)
     app.setApplicationName("ytpl-sync")
     app.setOrganizationName("ytpl-sync")
-    app.setWindowIcon(QtGui.QIcon())
+    app.setWindowIcon(load_app_icon())
+    app.setQuitOnLastWindowClosed(False)
 
     # Avoid Qt warnings when a font with invalid point size is inherited from the environment.
     f = app.font()
@@ -279,7 +489,10 @@ def main() -> int:
         app.setFont(f)
 
     w = MainWindow()
-    w.show()
+    if w.should_start_minimized_to_tray():
+        w.hide()
+    else:
+        w.show()
     return app.exec()
 
 

src/app/gui/pages/about.py

@@ -0,0 +1,112 @@
+from __future__ import annotations
+
+from PySide6 import QtCore, QtGui, QtWidgets
+
+from ...core.utils.version import get_app_version
+
+
+class AboutPage(QtWidgets.QWidget):
+    REPO_URL = "https://github.com/darkzoul5/YoutubePlaylistSync"
+    ISSUES_URL = f"{REPO_URL}/issues"
+
+    def __init__(self, parent: QtWidgets.QWidget | None = None) -> None:
+        super().__init__(parent)
+        self.setObjectName("aboutPage")
+
+        layout = QtWidgets.QVBoxLayout(self)
+        layout.setContentsMargins(16, 16, 16, 16)
+        layout.setSpacing(14)
+
+        title = QtWidgets.QLabel("About")
+        title.setObjectName("pageTitle")
+        layout.addWidget(title)
+
+        for card in (
+            self._hero_card(),
+            self._project_card(),
+            self._suggestions_card(),
+        ):
+            layout.addWidget(card)
+        layout.addStretch(1)
+
+    def _card(self, title: str) -> tuple[QtWidgets.QFrame, QtWidgets.QVBoxLayout]:
+        card = QtWidgets.QFrame()
+        card.setObjectName("aboutCard")
+
+        layout = QtWidgets.QVBoxLayout(card)
+        layout.setContentsMargins(16, 16, 16, 16)
+        layout.setSpacing(10)
+        layout.addWidget(self._card_title(title))
+        return card, layout
+
+    def _card_title(self, text: str) -> QtWidgets.QLabel:
+        label = QtWidgets.QLabel(text)
+        label.setObjectName("cardTitle")
+        return label
+
+    def _muted_label(self, text: str) -> QtWidgets.QLabel:
+        label = QtWidgets.QLabel(text)
+        label.setWordWrap(True)
+        label.setProperty("muted", True)
+        return label
+
+    def _link_button(self, text: str, url: str) -> QtWidgets.QPushButton:
+        button = QtWidgets.QPushButton(text)
+        button.setCursor(QtCore.Qt.CursorShape.PointingHandCursor)
+        button.clicked.connect(lambda: QtGui.QDesktopServices.openUrl(QtCore.QUrl(url)))
+        return button
+
+    def _action_row(self, text: str, url: str) -> QtWidgets.QWidget:
+        row = QtWidgets.QWidget()
+        layout = QtWidgets.QHBoxLayout(row)
+        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setSpacing(10)
+        layout.addWidget(self._link_button(text, url))
+        layout.addStretch(1)
+        return row
+
+    def _hero_card(self) -> QtWidgets.QFrame:
+        card, layout = self._card("About this project")
+        layout.insertWidget(
+            1,
+            self._muted_label(
+                "ytpl-sync is a desktop app for keeping local copies of YouTube playlists in sync."
+            ),
+        )
+        layout.insertWidget(2, self._muted_label("This is a student project."))
+        return card
+
+    def _project_card(self) -> QtWidgets.QFrame:
+        card, layout = self._card("Project")
+
+        form = QtWidgets.QFormLayout()
+        form.setLabelAlignment(QtCore.Qt.AlignmentFlag.AlignLeft)
+        form.setFormAlignment(
+            QtCore.Qt.AlignmentFlag.AlignTop | QtCore.Qt.AlignmentFlag.AlignLeft
+        )
+        form.setHorizontalSpacing(14)
+        form.setVerticalSpacing(10)
+
+        version_text = get_app_version()
+        version = f"v{version_text}" if version_text != "dev" else version_text
+        rows = [
+            ("Author", self._muted_label("Dark_Zoul")),
+            ("Version", self._muted_label(version)),
+            ("Repository", self._action_row("Open", self.REPO_URL)),
+            ("Issues", self._action_row("Open", self.ISSUES_URL)),
+        ]
+        for label, widget in rows:
+            form.addRow(label, widget)
+
+        layout.addLayout(form)
+        return card
+
+    def _suggestions_card(self) -> QtWidgets.QFrame:
+        card, layout = self._card("Suggestions")
+        layout.addWidget(
+            self._muted_label(
+                "• Keep the app updated regularly so that YouTube extraction stays reliable."
+            )
+        )
+        layout.addStretch(1)
+        return card

src/app/gui/pages/logs.py

@@ -10,6 +10,7 @@ from ..smooth_scroll import enable_smooth_scrolling
 class LogsPage(QtWidgets.QWidget):
     def __init__(self, parent: QtWidgets.QWidget | None = None) -> None:
         super().__init__(parent)
+        self.setObjectName("logsPage")
         layout = QtWidgets.QVBoxLayout(self)
         title = QtWidgets.QLabel("Logs")
         title.setObjectName("pageTitle")

src/app/gui/pages/playlists.py

@@ -36,6 +36,7 @@ class PlaylistManagerPage(QtWidgets.QWidget):
         parent: QtWidgets.QWidget | None = None,
     ) -> None:
         super().__init__(parent)
+        self.setObjectName("playlistsPage")
         self._settings = settings
         self._config_path = getattr(settings, "path", None)
         self._config: dict[str, Any] = {}
@@ -50,6 +51,7 @@ class PlaylistManagerPage(QtWidgets.QWidget):
         header.setObjectName("pageTitle")
 
         self._list = QtWidgets.QListWidget()
+        self._list.setObjectName("playlistList")
         # Selection-based UI is intentionally disabled; actions happen per-card.
         self._list.setSelectionMode(QtWidgets.QAbstractItemView.SelectionMode.NoSelection)
         self._list.setSpacing(8)
@@ -57,6 +59,20 @@ class PlaylistManagerPage(QtWidgets.QWidget):
         self._list.setWordWrap(True)
         self._list.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollMode.ScrollPerPixel)
         enable_smooth_scrolling(self._list)
+        self._list.setStyleSheet(
+            """
+            QListWidget#playlistList {
+              background: #0f1218;
+              border: none;
+            }
+            QListWidget#playlistList::viewport {
+              background: #0f1218;
+            }
+            QListWidget#playlistList::item {
+              background: transparent;
+            }
+            """
+        )
 
         self._add_btn = QtWidgets.QPushButton("Add")
         self._add_btn.clicked.connect(self._add_playlist)
@@ -130,7 +146,7 @@ class PlaylistManagerPage(QtWidgets.QWidget):
         # Optional DB metadata (last_sync). If DB is missing/corrupt, keep UI usable.
         last_sync_by_id: dict[str, str] = {}
         try:
-            db = Database(Path("app/data/app.db").resolve())
+            db = Database(Path("db/app.db").resolve())
             for r in rows:
                 pid = extract_playlist_id(r.url) or r.url
                 ls = db.get_playlist_last_sync(pid)
@@ -410,6 +426,16 @@ class _PlaylistCard(QtWidgets.QFrame):
         super().__init__(parent)
         self.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
         self.setObjectName("playlistCard")
+        self.setAttribute(QtCore.Qt.WidgetAttribute.WA_StyledBackground, True)
+        self.setStyleSheet(
+            """
+            QFrame#playlistCard {
+              background: #171b22;
+              border: 1px solid #2a3140;
+              border-radius: 12px;
+            }
+            """
+        )
         self._index = index
         self._active = False
         self._paused = False

src/app/gui/pages/queue.py

@@ -10,6 +10,7 @@ class QueuePage(QtWidgets.QWidget):
 
     def __init__(self, parent: QtWidgets.QWidget | None = None) -> None:
         super().__init__(parent)
+        self.setObjectName("queuePage")
         # Map (playlist_id, video_id) to a stable item; its `.row()` tracks sorting moves.
         self._rows_by_key: dict[tuple[str, str], QtWidgets.QTableWidgetItem] = {}
         self._pending_by_key: dict[tuple[str, str], dict] = {}

src/app/gui/pages/settings.py

@@ -11,6 +11,7 @@ from ..config_store import load_config, save_config
 class SettingsPage(QtWidgets.QWidget):
     def __init__(self, parent: QtWidgets.QWidget | None = None) -> None:
         super().__init__(parent)
+        self.setObjectName("settingsPage")
         self._config_path: Path | None = None
         self._config: dict[str, Any] = {}
 
@@ -49,6 +50,23 @@ class SettingsPage(QtWidgets.QWidget):
         form_box.setLayout(form)
         layout.addWidget(form_box)
 
+        tray_form = QtWidgets.QFormLayout()
+        self._close_to_tray = QtWidgets.QCheckBox()
+        self._close_to_tray.setChecked(False)
+        tray_form.addRow("close_to_tray", self._close_to_tray)
+
+        self._minimize_to_tray = QtWidgets.QCheckBox()
+        self._minimize_to_tray.setChecked(False)
+        tray_form.addRow("minimize_to_tray", self._minimize_to_tray)
+
+        self._start_minimized_to_tray = QtWidgets.QCheckBox()
+        self._start_minimized_to_tray.setChecked(False)
+        tray_form.addRow("start_minimized_to_tray", self._start_minimized_to_tray)
+
+        tray_box = QtWidgets.QGroupBox("Tray behavior")
+        tray_box.setLayout(tray_form)
+        layout.addWidget(tray_box)
+
         btns = QtWidgets.QHBoxLayout()
         self._reload_btn = QtWidgets.QPushButton("Reload")
         self._reload_btn.clicked.connect(self.reload_from_config)
@@ -75,6 +93,9 @@ class SettingsPage(QtWidgets.QWidget):
         self._retry_max.valueChanged.connect(lambda _v: self._schedule_autosave())
         self._retry_delay.valueChanged.connect(lambda _v: self._schedule_autosave())
         self._download_delay.valueChanged.connect(lambda _v: self._schedule_autosave())
+        self._close_to_tray.stateChanged.connect(lambda _v: self._schedule_autosave())
+        self._minimize_to_tray.stateChanged.connect(lambda _v: self._schedule_autosave())
+        self._start_minimized_to_tray.stateChanged.connect(lambda _v: self._schedule_autosave())
 
     def set_config_path(self, path: Path) -> None:
         self._config_path = path
@@ -96,6 +117,14 @@ class SettingsPage(QtWidgets.QWidget):
             self._retry_delay.setValue(float(self._config.get("retry_delay_seconds") or 1.5))
             self._download_delay.setValue(float(self._config.get("delay_between_downloads_seconds") or 0.0))
 
+            ui = self._config.get("ui")
+            ui = ui if isinstance(ui, dict) else {}
+            tray = ui.get("tray")
+            tray = tray if isinstance(tray, dict) else {}
+            self._close_to_tray.setChecked(bool(tray.get("close_to_tray", False)))
+            self._minimize_to_tray.setChecked(bool(tray.get("minimize_to_tray", False)))
+            self._start_minimized_to_tray.setChecked(bool(tray.get("start_minimized_to_tray", False)))
+
             self._status.setText(f"Loaded settings from {self._config_path}.")
         except Exception as exc:
             self._status.setText(f"Failed to load settings: {exc}")
@@ -119,6 +148,17 @@ class SettingsPage(QtWidgets.QWidget):
             data["retry_max_retries"] = int(self._retry_max.value())
             data["retry_delay_seconds"] = float(self._retry_delay.value())
             data["delay_between_downloads_seconds"] = float(self._download_delay.value())
+
+            ui = data.get("ui")
+            ui = ui if isinstance(ui, dict) else {}
+            tray = ui.get("tray")
+            tray = tray if isinstance(tray, dict) else {}
+            tray["close_to_tray"] = bool(self._close_to_tray.isChecked())
+            tray["minimize_to_tray"] = bool(self._minimize_to_tray.isChecked())
+            tray["start_minimized_to_tray"] = bool(self._start_minimized_to_tray.isChecked())
+            ui["tray"] = tray
+            data["ui"] = ui
+
             save_config(self._config_path, data)
             self._status.setText(f"Saved settings to {self._config_path}.")
         except Exception as exc:

src/app/gui/runner.py

@@ -18,7 +18,7 @@ from ..core.events.event_bus import EventBus
 class SyncRequest:
     playlist_cfg: Dict[str, Any]
     apply: bool = True
-    db_path: Path = Path("app/data/app.db")
+    db_path: Path = Path("db/app.db")
     cancel_flag: threading.Event | None = None
     pause_flag: threading.Event | None = None
 

src/app/main.py

@@ -20,7 +20,7 @@ from .core.utils.deps import DependencyError
 
 def bootstrap(db_path: Path | None = None) -> None:
     settings = Settings()
-    db = Database((db_path or Path("app/data/app.db")).resolve())
+    db = Database((db_path or Path("db/app.db")).resolve())
     service = SyncService(db)
     executor = ActionExecutor(db)