Add All filter to NoPayStation store source

- config: point SSL at certifi bundle when frozen (fixes store/NPS/TMDB SSL errors)
- gui: set app name + window icon for the taskbar
- spec: contents_directory=psp-preserve; bundle a .desktop file for Wayland launchers

.gitea/workflows/build.yml

@@ -22,15 +22,19 @@ jobs:
           pip install -r requirements-build.txt
 
       - name: Build
-        run: pyinstaller --clean --noconfirm psp-preserve.spec
+        run: pyinstaller --clean --noconfirm psppt.spec
 
       - name: Package tarball
-        run: tar -czf psp-preserve-linux-x86_64.tar.gz -C dist psp-preserve
+        run: |
+          cp packaging/install.sh dist/psppt/
+          cp packaging/psppt.desktop dist/psppt/
+          cp img/app-icon.png dist/psppt/
+          tar -czf psppt-linux-x86_64.tar.gz -C dist psppt
 
       - uses: actions/upload-artifact@v3
         with:
-          name: psp-preserve-linux-x86_64
-          path: psp-preserve-linux-x86_64.tar.gz
+          name: psppt-linux-x86_64
+          path: psppt-linux-x86_64.tar.gz
 
   windows:
     name: Windows x64 (Wine)
@@ -44,13 +48,13 @@ jobs:
           winpython -m pip install -r requirements-build.txt
 
       - name: Build
-        run: winpython -m PyInstaller --clean --noconfirm psp-preserve.spec
+        run: winpython -m PyInstaller --clean --noconfirm psppt.spec
 
       - name: Package zip
         run: |
-          cd dist && zip -rq ../psp-preserve-windows-x64.zip psp-preserve
+          cd dist && zip -rq ../psppt-windows-x64.zip psppt
 
       - uses: actions/upload-artifact@v3
         with:
-          name: psp-preserve-windows-x64
-          path: psp-preserve-windows-x64.zip
+          name: psppt-windows-x64
+          path: psppt-windows-x64.zip

.gitignore

@@ -23,4 +23,8 @@ data/nps/*.tsv
 
 # PyInstaller output
 build/
-dist/
+dist/
+
+# Offline cover bundles (large; fetched from the project release on first run)
+data/covers/*.zip
+/psppt-covers.zip

Caddyfile

@@ -3,5 +3,5 @@
 # Port-forward 80 and 443 on your router to this host.
 
 hostname.com {
-    reverse_proxy psp-preserve:8000
+    reverse_proxy psppt:8000
 }

README.md

@@ -1,6 +1,10 @@
-# PSP Preservation Tool
+# psppt
+
+
 the name is terrible, i know.
 
+![grrr](img/grrr.png)
+
 ![AI Generated](https://raw.githubusercontent.com/dotnetdave/ai-usage-badges/refs/heads/main/badges/png/1x/ai-generated.png)
 
 A cross-platform (Linux + Windows) desktop GUI — PySide6 — for preserving PSP
@@ -11,7 +15,7 @@ save-data with a real PSP, can pull missing discs from a Redump 7z archive
 collection, downloads PSN content from NoPayStation, and converts PlayStation 1
 ISO/CUE/BIN rips into PSP `EBOOT.PBP` homebrew.
 
-![PSP Preservation Tool](img/qt-gui.png)
+![psppt](img/qt-gui.png)
 * Dark theme with a blue accent — the Library tab in cover view. *
 
 ## Features
@@ -69,14 +73,16 @@ see the note inside).
 python3 -m venv .venv-build
 . .venv-build/bin/activate
 pip install -r requirements-build.txt
-pyinstaller --clean --noconfirm psp-preserve.spec
-# output: dist/psp-preserve/  → run dist/psp-preserve/psp-preserve
+pyinstaller --clean --noconfirm psppt.spec
+# output: dist/psppt/  → run dist/psppt/psppt
 ```
 
 Notes:
 
-- The build bundles the DATs, PS1 loader, and the offline cover bundles. The
-  cover zips are large (~850 MB), so builds are slow and the output is big.
+- The build bundles the DATs, PS1 loader, cover templates, and index catalogs
+  (~80 MB total). The large offline cover zips (~850 MB) are **not** bundled —
+  the app fetches them on first run (see
+  [Offline bundles](#offline-bundles--auto-download)).
 - `7z` (p7zip-full on Linux, 7-Zip on Windows) is a **runtime** dependency for
   reading store archives — it is not bundled.
 - User data (credentials, manual covers, PS1 templates, NPS cache, library DB,
@@ -166,9 +172,10 @@ Discs are matched by hash first (most precise), then serial, then filename.
 - `data/credentials.json` — cover/metadata API keys (IGDB, TheMovieDB,
   ScreenScraper, Google Custom Search). Environment variables take precedence.
 - `data/manual_covers/games|videos/` — your own cover images.
-- `data/covers/` — checked-in assets: the UMD video/game cover templates,
-  `libretro-index.json` + `openvgdb-index.json` catalogs, `libretro-covers.zip` +
-  `openvgdb-covers.zip` offline cover bundles, and the legacy cover cache.
+- `data/covers/` — checked-in assets: the UMD video/game cover templates and
+  the `libretro-index.json` + `openvgdb-index.json` catalogs. The large
+  `libretro-covers.zip` + `openvgdb-covers.zip` bundles are git-ignored and
+  distributed as `psppt-covers.zip` (see above).
 - `data/base.PBP` — a PSN PS1 classic EBOOT (any game) supplying `STARTDAT`
   + a base `PARAM.SFO`/icon for PS1 conversion (git-ignored, copyrighted).
 - `data/loader/DATA.PSP` + `data/loader/KEYS.BIN` — bundled plain-ELF POPS
@@ -178,7 +185,7 @@ Discs are matched by hash first (most precise), then serial, then filename.
   to drawn art when they're absent.
 - `data/nps/` — NoPayStation TSV lists (cached here on first store scan in dev;
   a packaged build stores them under the state dir instead).
-- State dir (`~/.local/state/psp-preserve/` on Linux, `%LOCALAPPDATA%\PSPPreserve`
+- State dir (`~/.local/state/psppt/` on Linux, `%LOCALAPPDATA%\psppt`
   on Windows, or `$PSP_STATE_DIR`):
   - `library.sqlite` — the catalog + library database.
   - `covers/` — downloaded cover cache.
@@ -192,13 +199,13 @@ bundled with the app; user-writable data lives in the state dir.
 ## Configuration
 
 Everything is driven by environment variables, with GUI settings (stored in
-QSettings under `PSPPreserve`) taking precedence where noted.
+QSettings under `psppt`) taking precedence where noted.
 
 | Variable | Default | Purpose |
 |---|---|---|
 | `PSP_DATA_DIR` | `./data` | data root (DATs, credentials, manual covers) |
 | `PSP_DATS_DIR` | `$PSP_DATA_DIR/dats` | DAT folder |
-| `PSP_STATE_DIR` | `~/.local/state/psp-preserve` | local state root |
+| `PSP_STATE_DIR` | `~/.local/state/psppt` | local state root |
 | `PSP_DB_PATH` | `$PSP_STATE_DIR/library.sqlite` | SQLite library |
 | `PSP_COVERS_DIR` | `$PSP_STATE_DIR/covers` | cover cache |
 | `PSP_GAMES_ROOTS` | `/data/umd_games` | comma-separated game disc roots |
@@ -219,6 +226,7 @@ QSettings under `PSPPreserve`) taking precedence where noted.
 | `PSP_CREDENTIALS` | `$PSP_USER_DATA_DIR/credentials.json` | credentials file |
 | `PSP_LIBRETRO_COVERS_URL` | *(empty)* | direct URL for `libretro-covers.zip` (else derived from store server) |
 | `PSP_OVGDB_COVERS_URL` | *(empty)* | direct URL for `openvgdb-covers.zip` (else derived from store server) |
+| `PSP_COVERS_BUNDLE_URL` | Gitea `covers` release asset | combined `psppt-covers.zip` download URL |
 
 Cover/metadata keys can also be set as env vars: `IGDB_CLIENT_ID`,
 `IGDB_CLIENT_SECRET`, `TMDB_API_KEY`, `GOOGLE_API_KEY`, `GOOGLE_CX`,
@@ -251,12 +259,23 @@ Manual covers in `data/manual_covers/videos/` always win.
 
 ### Offline bundles & auto-download
 
-The two bundles (`libretro-covers.zip`, `openvgdb-covers.zip`) are shipped in
-`data/covers/`, so a fresh install works with **no internet and no API keys**.
-If either is missing at startup, the app downloads it from the store server's
-`/api/covers/<name>.zip` endpoint (see [Server setup](#server-setup)).
+The two bundles (`libretro-covers.zip`, `openvgdb-covers.zip`) are packaged
+into one `psppt-covers.zip` (~850 MB) and attached to the repo's `covers`
+release — **not** bundled into the app binary.
 
-Rebuild them yourself:
+On first launch, if the bundle isn't installed, the app asks whether to
+download it (with a progress bar). Covers keep working online via libretro /
+OpenVGDB / ScreenScraper / IGDB without it — the bundle just makes them instant
+and offline. "Don't ask again" is remembered, and you can re-download from
+**Settings → Cover sources → Download offline cover bundle…**.
+
+Build the bundle yourself:
+
+```bash
+python3 scripts/make-covers-bundle.py   # -> psppt-covers.zip
+```
+
+Rebuild the inner zips:
 
 ```bash
 python3 -m app.libretro          # libretro-thumbnails -> libretro-covers.zip
@@ -423,7 +442,7 @@ Token protection: set `PSP_API_TOKEN`; the client sends
 macvlan bridge so it gets its own LAN IP (e.g. `192.168.1.100`, plain HTTP on 8000):
 
 ```bash
-# in /path/to/psp-preserve/
+# in /path/to/psppt/
 cp .env.example .env   # then edit: LAN IP, share paths, API token
 docker compose up -d --build
 ```

app/__init__.py

@@ -1 +1 @@
-"""PSP Preservation Tool application package."""
+"""psppt application package."""

app/api.py

@@ -251,7 +251,7 @@ def _library(conn, system=None, refresh=False):
 
 
 class Handler(BaseHTTPRequestHandler):
-    server_version = "PSPPreserve/0.1"
+    server_version = "psppt/0.1"
 
     def do_GET(self):
         parsed = urlparse(self.path)
@@ -262,7 +262,7 @@ class Handler(BaseHTTPRequestHandler):
         try:
             if path == "/":
                 _json(self, {
-                    "name": "PSP Preservation Tool API",
+                    "name": "psppt API",
                     "endpoints": [
                         "/api/summary",
                         "/api/releases?system=games|videos&q=&limit=&offset=",

app/config.py

@@ -11,6 +11,19 @@ _BUNDLE_DIR = getattr(sys, "_MEIPASS", None)
 
 PROJECT_ROOT = Path(_BUNDLE_DIR).resolve() if _BUNDLE_DIR else Path(__file__).resolve().parent.parent
 
+# Frozen bundles don't ship the system CA store, so Python's urllib would fail
+# TLS verification against the store server / NoPayStation / TMDB / archive.org.
+# Point OpenSSL at the certifi bundle (a curl_cffi dependency) when frozen only;
+# source runs keep using the OS CA store.
+if IS_FROZEN:
+    try:
+        import certifi
+        _CA_BUNDLE = certifi.where()
+        os.environ.setdefault("SSL_CERT_FILE", _CA_BUNDLE)
+        os.environ.setdefault("REQUESTS_CA_BUNDLE", _CA_BUNDLE)
+    except Exception:  # noqa: BLE001
+        pass
+
 
 def resource_path(*parts):
     """Absolute path to a read-only bundled resource (works when frozen)."""
@@ -29,10 +42,10 @@ def _default_state_dir():
     """
     if os.name == "nt":
         base = os.environ.get("LOCALAPPDATA") or os.environ.get("APPDATA") or str(Path.home())
-        return Path(base) / "PSPPreserve"
+        return Path(base) / "psppt"
     xdg = os.environ.get("XDG_STATE_HOME")
     base = Path(xdg) if xdg else Path.home() / ".local" / "state"
-    return base / "psp-preserve"
+    return base / "psppt"
 
 
 STATE_DIR = Path(os.environ.get("PSP_STATE_DIR", str(_default_state_dir())))
@@ -63,6 +76,13 @@ STORE_TOKEN = os.environ.get("PSP_STORE_TOKEN", "")
 LIBRETRO_COVERS_URL = os.environ.get("PSP_LIBRETRO_COVERS_URL", "")
 OVGDB_COVERS_URL = os.environ.get("PSP_OVGDB_COVERS_URL", "")
 
+# Combined offline cover bundle (both inner zips) fetched on first run when the
+# user opts in. Defaults to the project's Gitea release asset.
+COVERS_BUNDLE_URL = os.environ.get(
+    "PSP_COVERS_BUNDLE_URL",
+    "https://git.ceaf.dev/quoije/psp-preservation-tool/releases/download/covers/psppt-covers.zip",
+)
+
 # archive.org item hosting the same Redump 7z set (identifier or full URL).
 ARCHIVE_ITEM = os.environ.get("PSP_ARCHIVE_ITEM", "psp-redump-roms321.com")
 

app/covers.py

@@ -53,8 +53,20 @@ _TMDB_SEARCH = "https://api.themoviedb.org/3/search/movie"
 _TMDB_IMAGE = "https://image.tmdb.org/t/p/"
 _GOOGLE_CSE_API = "https://www.googleapis.com/customsearch/v1"
 _MANUAL_DIR = config.USER_DATA_DIR / "manual_covers"
-_OVGDB_ZIP = config.DATA_DIR / "covers" / "openvgdb-covers.zip"
-_LIBRETRO_ZIP = config.DATA_DIR / "covers" / "libretro-covers.zip"
+# Offline cover bundles live in the writable cover dir (downloaded on demand),
+# not the read-only app bundle. A source checkout keeps them in data/covers/.
+_OVGDB_ZIP = config.COVERS_DIR / "openvgdb-covers.zip"
+_LIBRETRO_ZIP = config.COVERS_DIR / "libretro-covers.zip"
+_BUNDLE_ZIP = config.COVERS_DIR / "psppt-covers.zip"
+
+
+def _bundle_zip_path(name):
+    """Resolve a cover bundle zip: writable dir first, legacy checkout second."""
+    for base in (config.COVERS_DIR, config.LEGACY_COVERS_DIR):
+        p = base / name
+        if p.exists():
+            return p
+    return config.COVERS_DIR / name
 
 _WIKI_SEARCH = "https://en.wikipedia.org/w/api.php"
 _WIKI_SUMMARY = "https://en.wikipedia.org/api/rest_v1/page/summary/"
@@ -62,7 +74,7 @@ _WIKI_SUMMARY = "https://en.wikipedia.org/api/rest_v1/page/summary/"
 _PNG_MAGIC = b"\x89PNG\r\n\x1a\n"
 _JPEG_MAGIC = b"\xff\xd8\xff"
 _MAX_HOPS = 3  # follow libretro symlink text bodies at most this many times
-_UA = {"User-Agent": "psp-preserve/0.1 (https://github.com; local tool)"}
+_UA = {"User-Agent": "psppt/0.1 (https://github.com; local tool)"}
 _igdb_token_state = {"token": "", "expires": 0.0}  # IGDB OAuth2 token cache
 _igdb_lock = threading.Lock()
 _igdb_last = 0.0  # monotonic clock of the last IGDB API call
@@ -158,48 +170,74 @@ def clear_cover_cache():
                     pass
 
 
-def _download_file(url, dest, timeout=600):
-    """Stream `url` to `dest` (atomic); returns True on success."""
+def _download_file(url, dest, timeout=600, progress_cb=None, cancel_event=None):
+    """Stream `url` to `dest` (atomic); returns True on success.
+
+    ``progress_cb(done, total)`` is called with bytes so far (total is 0 when
+    the server doesn't report a content length). ``cancel_event`` aborts the
+    download when set.
+    """
     req = urllib.request.Request(url, headers=_UA)
     with urllib.request.urlopen(req, timeout=timeout) as resp:
         if resp.status != 200:
             return False
+        total = int(resp.headers.get("Content-Length") or 0)
         tmp = dest.with_name(dest.name + ".tmp")
+        done = 0
         with open(tmp, "wb") as f:
             while True:
+                if cancel_event is not None and cancel_event.is_set():
+                    raise InterruptedError("download cancelled")
                 chunk = resp.read(1 << 20)
                 if not chunk:
                     break
                 f.write(chunk)
+                done += len(chunk)
+                if progress_cb is not None:
+                    progress_cb(done, total)
     os.replace(tmp, dest)
     return True
 
 
-def ensure_cover_bundles(server_url=""):
-    """Download missing offline cover bundle zips from the store server.
+def covers_bundle_present():
+    """True when the offline cover bundle is installed (both inner zips)."""
+    return (_bundle_zip_path("libretro-covers.zip").exists()
+            and _bundle_zip_path("openvgdb-covers.zip").exists())
 
-    ``server_url`` is the base URL (e.g. ``http://192.168.10.100:8000``); the
-    zips are fetched from ``<base>/api/covers/<name>.zip`` unless a direct URL
-    is set in config. Returns the names of bundles downloaded.
+
+def download_covers_bundle(url=None, progress_cb=None, cancel_event=None):
+    """Download and extract the combined cover bundle into the cover dir.
+
+    ``url`` defaults to ``config.COVERS_BUNDLE_URL``. Raises on failure; the
+    caller decides whether to surface the error.
     """
-    base = (server_url or config.STORE_SERVER_URL or "").rstrip("/")
-    downloaded = []
-    for name, path, direct in (
-        ("libretro-covers.zip", _LIBRETRO_ZIP, config.LIBRETRO_COVERS_URL),
-        ("openvgdb-covers.zip", _OVGDB_ZIP, config.OVGDB_COVERS_URL),
-    ):
-        if path.exists():
-            continue
-        url = direct or (f"{base}/api/covers/{name}" if base else "")
-        if not url:
-            continue
-        try:
-            if _download_file(url, path):
-                downloaded.append(name)
-                log.info("downloaded offline cover bundle %s", name)
-        except Exception as exc:  # noqa: BLE001
-            log.warning("could not download cover bundle %s: %s", name, exc)
-    return downloaded
+    url = (url or config.COVERS_BUNDLE_URL or "").strip()
+    if not url:
+        raise ValueError("no cover bundle URL configured")
+    config.COVERS_DIR.mkdir(parents=True, exist_ok=True)
+    _download_file(url, _BUNDLE_ZIP, timeout=3600,
+                   progress_cb=progress_cb, cancel_event=cancel_event)
+    inner = ("libretro-covers.zip", "openvgdb-covers.zip")
+    with zipfile.ZipFile(_BUNDLE_ZIP) as z:
+        missing = [n for n in inner if n not in z.namelist()]
+    if missing:
+        raise ValueError(f"cover bundle is missing: {', '.join(missing)}")
+    with zipfile.ZipFile(_BUNDLE_ZIP) as z:
+        for name in inner:
+            out = config.COVERS_DIR / name
+            tmp = out.with_name(out.name + ".tmp")
+            with z.open(name) as src, open(tmp, "wb") as dst:
+                while True:
+                    chunk = src.read(1 << 20)
+                    if not chunk:
+                        break
+                    dst.write(chunk)
+            os.replace(tmp, out)
+    # Invalidate cached namelists so lookups pick up the freshly extracted zips.
+    global _libretro_names, _ovgdb_names
+    _libretro_names = None
+    _ovgdb_names = None
+    return config.COVERS_DIR
 
 
 def cover_url(name, kind="Named_Boxarts", system="games"):
@@ -482,9 +520,10 @@ def _ovgdb_name_list():
     global _ovgdb_names
     if _ovgdb_names is None:
         _ovgdb_names = set()
-        if _OVGDB_ZIP.exists():
+        path = _bundle_zip_path("openvgdb-covers.zip")
+        if path.exists():
             try:
-                with zipfile.ZipFile(_OVGDB_ZIP) as z:
+                with zipfile.ZipFile(path) as z:
                     _ovgdb_names = {n[:-4] for n in z.namelist() if n.endswith(".jpg")}
             except Exception:  # noqa: BLE001
                 pass
@@ -535,7 +574,7 @@ def fetch_openvgdb_local(name):
     if entry is None:
         return None
     try:
-        with zipfile.ZipFile(_OVGDB_ZIP) as z:
+        with zipfile.ZipFile(_bundle_zip_path("openvgdb-covers.zip")) as z:
             data = z.read(entry)
         return data if _is_image(data) else None
     except Exception:  # noqa: BLE001
@@ -559,7 +598,7 @@ def fetch_libretro_local(name):
     if entry is None:
         return None
     try:
-        with zipfile.ZipFile(_LIBRETRO_ZIP) as z:
+        with zipfile.ZipFile(_bundle_zip_path("libretro-covers.zip")) as z:
             data = z.read(entry)
         return data if _is_image(data) else None
     except Exception:  # noqa: BLE001
@@ -570,9 +609,10 @@ def _libretro_name_list():
     global _libretro_names
     if _libretro_names is None:
         _libretro_names = set()
-        if _LIBRETRO_ZIP.exists():
+        path = _bundle_zip_path("libretro-covers.zip")
+        if path.exists():
             try:
-                with zipfile.ZipFile(_LIBRETRO_ZIP) as z:
+                with zipfile.ZipFile(path) as z:
                     _libretro_names = {n[:-4] for n in z.namelist() if n.endswith(".png")}
             except Exception:  # noqa: BLE001
                 pass
@@ -610,7 +650,7 @@ def _fetch_screenscraper(name, timeout, system="games"):
     params = {
         "devid": devid,
         "devpassword": devpassword,
-        "softname": creds.get("screenscraper_softname") or "psp-preserve",
+        "softname": creds.get("screenscraper_softname") or "psppt",
         "output": "json",
         "systemeid": _platform(system)["ss_id"],
         "romtype": "rom",

app/gui.py

@@ -1,4 +1,4 @@
-"""Native Linux GUI for the PSP Preservation Tool (PySide6 / Qt).
+"""Native Linux GUI for psppt (PySide6 / Qt).
 
 Run with::
 
@@ -7,6 +7,7 @@ Run with::
 import datetime
 import json
 import logging
+import signal
 import sys
 import threading
 from pathlib import Path
@@ -117,14 +118,16 @@ def _thread_running(thread):
 
 
 class CoverLoader(QObject):
-    loaded = Signal(int, int, str)  # gen, item index, cached image path
+    loaded = Signal(int, int, QImage)  # gen, item index, fitted cover image
     failed = Signal(int, int, str)  # gen, item index, name (no cover found)
     finished = Signal()
 
-    def __init__(self, items, gen):
+    def __init__(self, items, gen, icon_w=150, icon_h=220):
         super().__init__()
         self.items = items
         self.gen = gen
+        self.icon_w = icon_w
+        self.icon_h = icon_h
         self._cancel = threading.Event()
 
     def cancel(self):
@@ -148,11 +151,17 @@ class CoverLoader(QObject):
                 except Exception:  # noqa: BLE001
                     path = None
                 if path is not None:
-                    self.loaded.emit(self.gen, i, str(path))
+                    img = QImage(str(path))
+                    if img.isNull():
+                        self.failed.emit(self.gen, i, self.items[i]["name"])
+                    else:
+                        self.loaded.emit(self.gen, i, _fit_image(img, self.icon_w, self.icon_h))
                 else:
                     self.failed.emit(self.gen, i, self.items[i]["name"])
         finally:
-            pool.shutdown(wait=True, cancel_futures=True)
+            # Return promptly on cancel/exit instead of blocking the GUI thread
+            # on in-flight network timeouts during shutdown.
+            pool.shutdown(wait=not self._cancel.is_set(), cancel_futures=True)
         self.finished.emit()
 
 
@@ -276,6 +285,25 @@ def _fit_pixmap(pm, w, h):
     return canvas
 
 
+def _fit_image(img, w, h):
+    """Scale a QImage into a letterboxed ``w x h`` ARGB image (thread-safe).
+
+    Decoding + scaling happen off the GUI thread in the cover loaders; the
+    main thread only converts the result to a QPixmap (cheap).
+    """
+    canvas = QImage(w, h, QImage.Format_ARGB32)
+    canvas.fill(Qt.transparent)
+    if img.isNull():
+        return canvas
+    scaled = img.scaled(w, h, Qt.KeepAspectRatio, Qt.SmoothTransformation)
+    x = (w - scaled.width()) // 2
+    y = (h - scaled.height()) // 2
+    painter = QPainter(canvas)
+    painter.drawImage(x, y, scaled)
+    painter.end()
+    return canvas
+
+
 def _cover_pixmap(rid, system, max_w, max_h):
     """Return a scaled cover pixmap for an item, or None if unavailable."""
     if rid is None:
@@ -429,7 +457,7 @@ class CoverShowcase(QWidget):
         for loader in self._loaders:
             loader.cancel()
         self.thread = QThread(self)
-        self.loader = CoverLoader(self.items, gen)
+        self.loader = CoverLoader(self.items, gen, self.ICON_W, self.ICON_H)
         self.loader.moveToThread(self.thread)
         self.thread.started.connect(self.loader.run)
         self.loader.loaded.connect(self._on_loaded)
@@ -454,12 +482,12 @@ class CoverShowcase(QWidget):
         painter.end()
         return QIcon(pm)
 
-    def _on_loaded(self, gen, index, path):
-        if gen != self._generation:
+    def _on_loaded(self, gen, index, image):
+        if self._closing or gen != self._generation:
             return
         item = self.list.item(index)
         if item is not None:
-            item.setIcon(self._fit_icon(QPixmap(path)))
+            item.setIcon(QIcon(QPixmap.fromImage(image)))
         if 0 <= index < len(self.items):
             self.cover_loaded.emit(self.items[index])
 
@@ -477,7 +505,7 @@ class CoverShowcase(QWidget):
             self.play_requested.emit(data)
 
     def _on_failed(self, gen, index, name):
-        if gen != self._generation:
+        if self._closing or gen != self._generation:
             return
         if index not in self.missing:
             self.missing.append(index)
@@ -485,6 +513,8 @@ class CoverShowcase(QWidget):
         self._update_status()
 
     def _on_loading_done(self):
+        if self._closing:
+            return
         sender = self.sender()
         if sender is not None and getattr(sender, "gen", None) != self._generation:
             return
@@ -492,6 +522,8 @@ class CoverShowcase(QWidget):
         self._update_status()
 
     def _update_status(self):
+        if self._closing:
+            return
         if self._loading:
             self.status.setText("Loading covers…")
             self.missing_changed.emit(0)
@@ -1111,13 +1143,14 @@ class ScrapeDialog(QDialog):
 
 class SettingsPage(QWidget):
     saved = Signal()
+    download_covers = Signal()
 
     def __init__(self, games_dir, videos_dir, store_dir, ppsspp_dir, cloud_dir, ppsspp_exe,
                  store_server_url, store_token, store_archive_id, store_archive_sig, store_archive_user,
                  iso_category, ps1_category, psp_category, ps1_dir, ps1_output_dir, ps1_base_pbp,
                  nps_dir="", parent=None):
         super().__init__(parent)
-        s = QSettings("PSPPreserve", "PSPPreserve")
+        s = QSettings("psppt", "psppt")
 
         outer = QVBoxLayout(self)
         outer.setContentsMargins(16, 16, 16, 16)
@@ -1278,6 +1311,25 @@ class SettingsPage(QWidget):
         self.clear_covers_btn = QPushButton("Clear cover cache (re-fetch all covers)")
         self.clear_covers_btn.clicked.connect(self._clear_cover_cache)
         form.addRow(self.clear_covers_btn)
+        self.download_bundle_btn = QPushButton("Download offline cover bundle…")
+        self.download_bundle_btn.clicked.connect(self.download_covers.emit)
+        form.addRow(self.download_bundle_btn)
+        col.addWidget(box)
+
+        # -- Storage ---------------------------------------------------------- #
+        box, form = self._group("Storage")
+        self._path_row(form, "State directory", str(config.STATE_DIR))
+        self._path_row(form, "Library database", str(config.DB_PATH))
+        self._path_row(form, "Cover cache", str(config.COVERS_DIR))
+        self._path_row(form, "User data (credentials, NPS cache…)", str(config.USER_DATA_DIR))
+        note = QLabel(
+            "Your library, covers, and credentials live here — outside the app "
+            "bundle, so they survive upgrades. On Linux this is the "
+            "~/.local/state/psppt folder."
+        )
+        note.setWordWrap(True)
+        note.setStyleSheet("color: #9a9ba5;")
+        form.addRow(note)
         col.addWidget(box)
 
         col.addStretch(1)
@@ -1342,6 +1394,29 @@ class SettingsPage(QWidget):
         form.addRow(label, edit)
         return edit
 
+    def _path_row(self, form, label, path):
+        edit = QLineEdit(path)
+        edit.setReadOnly(True)
+        open_btn = QPushButton("Open")
+        open_btn.clicked.connect(lambda _=False, p=Path(path): self._open_path(p))
+        row = QWidget()
+        h = QHBoxLayout(row)
+        h.setContentsMargins(0, 0, 0, 0)
+        h.addWidget(edit, 1)
+        h.addWidget(open_btn)
+        form.addRow(label, row)
+        return edit
+
+    @staticmethod
+    def _open_path(path):
+        path = Path(path)
+        target = path if path.is_dir() else path.parent
+        if target.is_dir():
+            QDesktopServices.openUrl(QUrl.fromLocalFile(str(target)))
+        else:
+            QMessageBox.information(None, "Not found",
+                                    f"Folder not created yet:\n{target}\n\nIt is created on first use.")
+
     def games_dir(self):
         return self.games_edit.text().strip()
 
@@ -1405,7 +1480,7 @@ class SettingsPage(QWidget):
     def _save(self):
         sources.save({key: edit.text() for key, edit in self.fields.items()})
         covers.clear_miss_cache()
-        s = QSettings("PSPPreserve", "PSPPreserve")
+        s = QSettings("psppt", "psppt")
         s.setValue("auto_scan", self.auto_scan.isChecked())
         s.setValue("scan_workers", self.workers_spin.value())
         s.setValue("auto_sync_saves", self.auto_sync.isChecked())
@@ -1440,14 +1515,16 @@ class StoreScanWorker(QObject):
 
 
 class StoreCoverLoader(QObject):
-    loaded = Signal(int, int, str)  # gen, grid row, cached image path
+    loaded = Signal(int, int, QImage)  # gen, grid row, fitted cover image
     finished = Signal()
 
-    def __init__(self, tasks, gen, quick=True):
+    def __init__(self, tasks, gen, quick=True, icon_w=150, icon_h=220):
         super().__init__()
         self.tasks = tasks  # list of (grid_row, item_dict)
         self.gen = gen
         self.quick = quick
+        self.icon_w = icon_w
+        self.icon_h = icon_h
         self._cancel = threading.Event()
 
     def cancel(self):
@@ -1471,9 +1548,13 @@ class StoreCoverLoader(QObject):
                 except Exception:  # noqa: BLE001
                     path = None
                 if path is not None:
-                    self.loaded.emit(self.gen, row, str(path))
+                    img = QImage(str(path))
+                    if not img.isNull():
+                        self.loaded.emit(self.gen, row, _fit_image(img, self.icon_w, self.icon_h))
         finally:
-            pool.shutdown(wait=True, cancel_futures=True)
+            # Return promptly on cancel/exit instead of blocking the GUI thread
+            # on in-flight network timeouts during shutdown.
+            pool.shutdown(wait=not self._cancel.is_set(), cancel_futures=True)
         self.finished.emit()
 
 
@@ -1750,6 +1831,8 @@ class StorePage(QWidget):
         self._lib_cover = {}  # norm -> (release_id, system)
         self._psp_norm = set()   # norm of library items installed on the PSP
         self._cover_attempted = set()
+        self._cover_busy = False
+        self._date_busy = False
         self._generation = 0
         self._scan_gen = 0
         self._meta_gen = 0
@@ -1777,7 +1860,7 @@ class StorePage(QWidget):
         self.source_combo.currentIndexChanged.connect(self._on_source_changed)
         bar.addWidget(self.source_combo)
         self.nps_type = QComboBox()
-        self.nps_type.addItems(["PSP Games", "PS1 Classics", "PSP Themes", "PSP DLC"])
+        self.nps_type.addItems(["All", "PSP Games", "PS1 Classics", "PSP Themes", "PSP DLC"])
         self.nps_type.setVisible(False)
         self.nps_type.currentIndexChanged.connect(self._on_nps_type_changed)
         bar.addWidget(self.nps_type)
@@ -1789,6 +1872,11 @@ class StorePage(QWidget):
         self.psp_filter.setToolTip("Filter by whether the archive matches a disc installed on the connected PSP")
         self.psp_filter.currentIndexChanged.connect(self._apply_filter)
         bar.addWidget(self.psp_filter)
+        self.store_sort = QComboBox()
+        self.store_sort.addItems(["Newest first", "Title (A–Z)", "Region (A–Z)", "Size (largest)", "In library first"])
+        self.store_sort.setToolTip("Sort the cover grid")
+        self.store_sort.currentTextChanged.connect(self._apply_filter)
+        bar.addWidget(self.store_sort)
         refresh_btn = QPushButton("Refresh")
         refresh_btn.clicked.connect(lambda: self.refresh(force=True))
         bar.addWidget(refresh_btn)
@@ -1884,7 +1972,7 @@ class StorePage(QWidget):
         if self.source_combo.currentIndex() == 1:
             return transfers.ArchiveOrgSource(self._archive_id, self._archive_sig, self._archive_user)
         if self.source_combo.currentIndex() == 3:
-            ct = ("psp", "psx", "theme", "dlc")[self.nps_type.currentIndex()]
+            ct = ("all", "psp", "psx", "theme", "dlc")[self.nps_type.currentIndex()]
             return transfers.NoPayStationSource(ct)
         return transfers.LocalShareSource(self._store_dir)
 
@@ -1931,9 +2019,27 @@ class StorePage(QWidget):
         if self._items:
             self._apply_filter()
 
+    def _begin_scan(self):
+        """Clear the stale view and invalidate in-flight cover/date batches."""
+        self._generation += 1
+        self._cover_busy = False
+        self._date_busy = False
+        self._cover_queue = []
+        self._cover_next = 0
+        self._date_queue = []
+        self._date_next = 0
+        self._cover_attempted.clear()
+        for loader in self._loaders:
+            loader.cancel()
+        self._loaders = []
+        self.grid.clear()
+        self.table.setRowCount(0)
+        self.status.setText("Loading…")
+
     def refresh(self, force=False):
         if self._closing:
             return
+        self._begin_scan()
         self._scan_gen += 1
         gen = self._scan_gen
         if self.source_combo.currentIndex() == 0:  # Server
@@ -1951,7 +2057,7 @@ class StorePage(QWidget):
             self.status.setText("Fetching store from archive.org…")
             worker = RemoteStoreScanWorker(transfers.ArchiveOrgSource(self._archive_id, self._archive_sig, self._archive_user))
         elif self.source_combo.currentIndex() == 3:  # NoPayStation
-            ct = ("psp", "psx", "theme", "dlc")[self.nps_type.currentIndex()]
+            ct = ("all", "psp", "psx", "theme", "dlc")[self.nps_type.currentIndex()]
             log.info("store: fetching NoPayStation %s list", ct)
             self.status.setText(f"Fetching NoPayStation ({ct.upper()})…")
             worker = RemoteStoreScanWorker(transfers.NoPayStationSource(ct, force=force))
@@ -1994,6 +2100,8 @@ class StorePage(QWidget):
         self._items = []
         self._filtered = []
         self._dirty = False
+        self.grid.clear()
+        self.table.setRowCount(0)
         log.warning("store unavailable: %s", message)
         self.status.setText(f"Store unavailable: {message}")
 
@@ -2046,7 +2154,7 @@ class StorePage(QWidget):
             if not it.get("release_date"):
                 it["release_date"] = dates.get((str(rid), system)) or ""
             filtered.append(it)
-        filtered.sort(key=self._store_sort_key)
+        self._sort_store_items(filtered)
         self._filtered = filtered
         if self.all_check.isChecked():
             show = len(filtered)
@@ -2054,6 +2162,19 @@ class StorePage(QWidget):
             show = min(self.RECENT_LIMIT, len(filtered))
         self._populate(filtered, show)
 
+    def _sort_store_items(self, items):
+        mode = self.store_sort.currentText()
+        if mode == "Title (A–Z)":
+            items.sort(key=lambda it: store.display_name(it["name"]).lower())
+        elif mode == "Region (A–Z)":
+            items.sort(key=lambda it: (store.region(it["name"]) or "").lower())
+        elif mode == "Size (largest)":
+            items.sort(key=lambda it: it.get("size") or 0, reverse=True)
+        elif mode == "In library first":
+            items.sort(key=lambda it: (not it.get("in_library"), store.display_name(it["name"]).lower()))
+        else:  # Newest first
+            items.sort(key=self._store_sort_key)
+
     @staticmethod
     def _store_sort_key(it):
         d = it.get("release_date") or ""
@@ -2081,6 +2202,8 @@ class StorePage(QWidget):
         self._cover_next = 0
         self._date_queue = []
         self._date_next = 0
+        self._cover_busy = False
+        self._date_busy = False
         self._cover_attempted.clear()
         self._placeholder = QIcon(_placeholder_pixmap(self.ICON_W, self.ICON_H))
 
@@ -2090,6 +2213,7 @@ class StorePage(QWidget):
         self._loaders = []
 
         self.grid.clear()
+        self.grid.setUpdatesEnabled(False)
         self.table.setUpdatesEnabled(False)
         self.table.setSortingEnabled(False)
         self.table.setRowCount(show_count)
@@ -2132,10 +2256,10 @@ class StorePage(QWidget):
             rid, system = lc
         else:
             rid, system = covers.stable_key(it["name"]), it.get("system") or "games"
-        p = covers.cover_path(rid, system)
-        if p.exists() and covers.file_is_image(p):
-            item.setIcon(QIcon(_fit_pixmap(QPixmap(str(p)), self.ICON_W, self.ICON_H)))
-        elif system not in ("theme", "dlc") and rid not in self._cover_attempted:
+        # Covers are decoded + scaled off the GUI thread (StoreCoverLoader).
+        # Never load a QPixmap here — doing so for cached covers made the store
+        # unresponsive while filling/scrolling.
+        if system not in ("theme", "dlc") and rid not in self._cover_attempted:
             # Themes and DLC have no meaningful box art in libretro/IGDB, and
             # bulk-scraping hundreds of them on every switch to the DLC list
             # saturates the network/CPU and makes the store unresponsive.
@@ -2194,6 +2318,7 @@ class StorePage(QWidget):
     def _finish_fill(self):
         if self._fill_timer is not None:
             self._fill_timer.stop()
+        self.grid.setUpdatesEnabled(True)
         self.table.setUpdatesEnabled(True)
         self.table.setSortingEnabled(True)
         total = len(self._filtered)
@@ -2206,13 +2331,14 @@ class StorePage(QWidget):
         self._load_date_batch(self.DATE_BATCH)
 
     def _load_cover_batch(self, n):
-        if self._closing or not self._cover_queue:
+        if self._closing or not self._cover_queue or self._cover_busy:
             return
         end = min(self._cover_next + n, len(self._cover_queue))
         if self._cover_next >= end:
             return
         tasks = self._cover_queue[self._cover_next:end]
         self._cover_next = end
+        self._cover_busy = True
         self._start_cover_loader(self._generation, tasks)
 
     def _active_scrollbar(self):
@@ -2243,13 +2369,14 @@ class StorePage(QWidget):
             self._fill_timer.start()
 
     def _load_date_batch(self, n):
-        if self._closing or not self._date_queue:
+        if self._closing or not self._date_queue or self._date_busy:
             return
         end = min(self._date_next + n, len(self._date_queue))
         if self._date_next >= end:
             return
         tasks = self._date_queue[self._date_next:end]
         self._date_next = end
+        self._date_busy = True
         self._start_date_loader(self._generation, tasks)
 
     def _start_date_loader(self, gen, tasks):
@@ -2260,14 +2387,24 @@ class StorePage(QWidget):
         loader.moveToThread(thread)
         thread.started.connect(loader.run)
         loader.loaded.connect(self._on_date_loaded)
+        loader.finished.connect(self._on_date_batch_done)
         loader.finished.connect(thread.quit)
         thread.finished.connect(self._on_thread_finished)
         self._threads.append(thread)
         self._loaders.append(loader)
         thread.start()
 
+    def _on_date_batch_done(self):
+        if self._closing:
+            return
+        loader = self.sender()
+        if getattr(loader, "gen", None) != self._generation:
+            return
+        self._date_busy = False
+        self._load_date_batch(self.DATE_BATCH)
+
     def _on_date_loaded(self, gen, row, date):
-        if gen != self._generation or not date:
+        if self._closing or gen != self._generation or not date:
             return
         if 0 <= row < len(self._filtered):
             self._filtered[row]["release_date"] = date
@@ -2279,22 +2416,32 @@ class StorePage(QWidget):
         if self._closing or not tasks:
             return
         thread = QThread(self)
-        loader = StoreCoverLoader(tasks, gen, quick=True)
+        loader = StoreCoverLoader(tasks, gen, quick=True, icon_w=self.ICON_W, icon_h=self.ICON_H)
         loader.moveToThread(thread)
         thread.started.connect(loader.run)
         loader.loaded.connect(self._on_cover_loaded)
+        loader.finished.connect(self._on_cover_batch_done)
         loader.finished.connect(thread.quit)
         thread.finished.connect(self._on_thread_finished)
         self._threads.append(thread)
         self._loaders.append(loader)
         thread.start()
 
-    def _on_cover_loaded(self, gen, row, path):
-        if gen != self._generation:
+    def _on_cover_batch_done(self):
+        if self._closing:
+            return
+        loader = self.sender()
+        if getattr(loader, "gen", None) != self._generation:
+            return
+        self._cover_busy = False
+        self._load_cover_batch(self.COVER_SCROLL_BATCH)
+
+    def _on_cover_loaded(self, gen, row, image):
+        if self._closing or gen != self._generation:
             return
         item = self.grid.item(row)
         if item is not None:
-            item.setIcon(QIcon(_fit_pixmap(QPixmap(path), self.ICON_W, self.ICON_H)))
+            item.setIcon(QIcon(QPixmap.fromImage(image)))
             it = item.data(Qt.UserRole)
             shown = getattr(self.details, "_item", None)
             if it is not None and shown is not None and it.get("path") == shown.get("path"):
@@ -2523,6 +2670,7 @@ class QueuePage(QWidget):
         "umd-dump": "UMD dump",
         "save-sync": "Save sync",
         "nps-download": "NoPayStation",
+        "covers": "Covers bundle",
     }
 
     def __init__(self, parent=None):
@@ -4044,6 +4192,7 @@ class Ps1Page(QWidget):
         self._preview_gen = 0
         self._preview_threads = []
         self._preview_workers = []
+        self._closing = False
 
         layout = QVBoxLayout(self)
         bar = QHBoxLayout()
@@ -4142,7 +4291,7 @@ class Ps1Page(QWidget):
         self._preview_workers.append(worker)
 
     def _on_preview_result(self, gen, game_id, icon0, pic0, pic1):
-        if gen != self._preview_gen:
+        if self._closing or gen != self._preview_gen:
             return
         self.preview_icon0.setText("")
         self.preview_pic0.setText("")
@@ -4190,6 +4339,8 @@ class Ps1Page(QWidget):
         self._thread.start()
 
     def _on_results(self, entries):
+        if self._closing:
+            return
         # Only show discs that still need converting; converted games already
         # appear in the Library tab.
         entries = [e for e in entries if e["kind"] == "disc" and e.get("status") != "converted"]
@@ -4205,7 +4356,22 @@ class Ps1Page(QWidget):
             self.table.selectRow(0)
 
     def _on_failed(self, message):
-        self.status.setText(f"PS1 scan failed: {message}")
+        if not self._closing:
+            self.status.setText(f"PS1 scan failed: {message}")
+
+    def shutdown(self):
+        self._closing = True
+        if self._thread is not None and _thread_running(self._thread):
+            self._thread.quit()
+            self._thread.wait()
+        for t in self._preview_threads:
+            if _thread_running(t):
+                t.quit()
+                t.wait()
+        self._preview_threads = []
+        self._preview_workers = []
+        self._thread = None
+        self._worker = None
 
     def _convert_selected(self):
         row = self.table.currentRow()
@@ -4230,7 +4396,7 @@ class Ps1Page(QWidget):
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
-        self.setWindowTitle("psp preservation tool ~ quoije")
+        self.setWindowTitle("psppt ~ quoije")
         self.resize(1240, 780)
         self._rows = []
         self._renames = []
@@ -4253,7 +4419,7 @@ class MainWindow(QMainWindow):
         self._library_workers = []
         self._library_loading = False
 
-        self.settings = QSettings("PSPPreserve", "PSPPreserve")
+        self.settings = QSettings("psppt", "psppt")
         self._games_dir = self._first_existing(config.GAMES_ROOTS) or self.settings.value("games_dir", "") or ""
         self._videos_dir = self._first_existing(config.VIDEO_ROOTS) or self.settings.value("videos_dir", "") or ""
         self._store_dir = str(self.settings.value("store_dir", str(config.STORE_ROOT)) or "")
@@ -4296,7 +4462,7 @@ class MainWindow(QMainWindow):
             pm = QPixmap(str(icon_path))
             pm = pm.scaled(28, 28, Qt.KeepAspectRatio, Qt.SmoothTransformation)
             logo.setPixmap(pm)
-        logo.setToolTip("PSP Preservation Tool")
+        logo.setToolTip("psppt")
         self.tabs.setCornerWidget(logo, Qt.TopRightCorner)
 
         self.queue = queue.TransferQueue(self)
@@ -4366,6 +4532,11 @@ class MainWindow(QMainWindow):
         self.library_view = QComboBox()
         self.library_view.addItems(["Cover view", "List view"])
         bar.addWidget(self.library_view)
+        self.library_sort = QComboBox()
+        self.library_sort.addItems(["Title", "Release date", "Size", "Region", "Type", "Serial"])
+        self.library_sort.setToolTip("Sort the cover grid")
+        self.library_sort.currentTextChanged.connect(self._apply_library_filter)
+        bar.addWidget(self.library_sort)
         reload_btn = QPushButton("Reload")
         reload_btn.clicked.connect(self.load_library)
         bar.addWidget(reload_btn)
@@ -4497,6 +4668,7 @@ class MainWindow(QMainWindow):
                                           self._ps1_dir, self._ps1_output_dir, self._ps1_base_pbp,
                                           self._nps_dir)
         self.settings_page.saved.connect(self._on_settings_saved)
+        self.settings_page.download_covers.connect(self._download_covers_bundle)
         return self.settings_page
 
     def _on_settings_saved(self):
@@ -4633,12 +4805,30 @@ class MainWindow(QMainWindow):
             if psp_f == "Not on PSP" and it.get("on_psp"):
                 continue
             items.append(it)
+        self._sort_library_items(items)
         self._library_filtered = items
         self._populate_library_table(items)
         self.cover_grid.set_items(items)
         if hasattr(self, "psp_page"):
             self.psp_page.set_library_items(self._library_cache)
 
+    def _sort_library_items(self, items):
+        mode = self.library_sort.currentText()
+        title = lambda it: (it.get("title_override") or it.get("canonical") or it["name"] or "").lower()
+        if mode == "Release date":
+            items.sort(key=lambda it: it.get("release_date") or "", reverse=True)
+        elif mode == "Size":
+            items.sort(key=lambda it: it.get("size") or 0, reverse=True)
+        elif mode == "Region":
+            items.sort(key=lambda it: (it.get("region") or "").lower())
+        elif mode == "Type":
+            order = {"games": 0, "videos": 1, "ps1": 2, "theme": 3, "dlc": 4}
+            items.sort(key=lambda it: (order.get(it.get("system"), 9), title(it)))
+        elif mode == "Serial":
+            items.sort(key=lambda it: (it.get("serial") or "").lower())
+        else:  # Title
+            items.sort(key=title)
+
     def _populate_library_table(self, items):
         self.library_table.setUpdatesEnabled(False)
         self.library_table.setSortingEnabled(False)
@@ -4810,7 +5000,7 @@ class MainWindow(QMainWindow):
                 if not self._nps_dir:
                     QMessageBox.warning(self, "No NPS output dir", "Set the NoPayStation output dir in Settings → Store.")
                     return
-                sub = {"psp": "PSP", "psx": "PSX", "theme": "THEME", "dlc": "DLC"}.get(src.content_type, "PSP")
+                sub = {"psp": "PSP", "psx": "PSX", "theme": "THEME", "dlc": "DLC"}.get(it.get("content_type") or src.content_type, "PSP")
                 dest_dir = Path(self._nps_dir) / sub
                 kind = "nps-download"
             else:
@@ -5216,6 +5406,9 @@ class MainWindow(QMainWindow):
             QTimer.singleShot(0, self._refresh_psp)
         if kind == "save-sync":
             QTimer.singleShot(0, self._refresh_saves)
+        if kind == "covers":
+            covers.clear_miss_cache()
+            QTimer.singleShot(0, self.load_library)
         if kind == "ps1-convert":
             QTimer.singleShot(0, self.ps1_page.refresh)
             QTimer.singleShot(0, self.load_library)
@@ -5551,6 +5744,48 @@ class MainWindow(QMainWindow):
         QMessageBox.information(self, "Done", f"Renamed {renamed} file(s).")
         self.load_library()
 
+    def maybe_offer_covers_bundle(self):
+        """Offer to download the offline cover bundle once, if it's missing."""
+        if self._closing or covers.covers_bundle_present():
+            return
+        s = QSettings("psppt", "psppt")
+        if str(s.value("covers_bundle_skip", "false")).lower() == "true":
+            return
+        box = QMessageBox(self)
+        box.setWindowTitle("Offline covers")
+        box.setIcon(QMessageBox.Question)
+        box.setText(
+            "The offline cover bundle (~843 MB) isn't installed.\n\n"
+            "Download it now from the project repo? Covers keep working online "
+            "without it — the bundle just makes them instant and offline."
+        )
+        download = box.addButton("Download", QMessageBox.AcceptRole)
+        box.addButton("Not now", QMessageBox.RejectRole)
+        never = box.addButton("Don't ask again", QMessageBox.DestructiveRole)
+        box.setDefaultButton(download)
+        box.exec()
+        clicked = box.clickedButton()
+        if clicked is never:
+            s.setValue("covers_bundle_skip", "true")
+        elif clicked is download:
+            self._download_covers_bundle()
+
+    def _download_covers_bundle(self):
+        """Queue the offline cover bundle download in the transfer queue."""
+        if self._closing:
+            return
+        for j in self.queue.jobs:
+            if j.kind == "covers" and j.status in ("queued", "running", "cancelling"):
+                return  # already queued or running
+        self.queue.enqueue(
+            transfers.CoversBundleSource(),
+            str(config.COVERS_DIR),
+            None,
+            "Offline cover bundle",
+            kind="covers",
+        )
+        self.tabs.setCurrentWidget(self.queue_page)
+
     def closeEvent(self, event):
         self._closing = True
         self.settings.setValue("window_geometry", self.saveGeometry())
@@ -5576,18 +5811,11 @@ class MainWindow(QMainWindow):
             self.psp_page.shutdown()
         if hasattr(self, "saves_page"):
             self.saves_page.shutdown()
+        if hasattr(self, "ps1_page"):
+            self.ps1_page.shutdown()
         event.accept()
 
 
-def _start_bundle_check(window):
-    """Download any missing offline cover bundles in the background."""
-    server = getattr(window, "_store_server_url", "") or ""
-    try:
-        covers.ensure_cover_bundles(server)
-    except Exception:  # noqa: BLE001 - background best-effort
-        pass
-
-
 def main():
     logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)-7s %(name)-14s %(message)s")
     init_db()  # migrate legacy on-share DB/covers to local storage, then schema
@@ -5596,16 +5824,34 @@ def main():
     n = ingest.ensure_catalog()
     if n:
         log.info("ingested %d DAT(s) into the catalog", n)
-    log.info("starting psp-preserve (db: %s)", config.DB_PATH)
+    log.info("starting psppt (db: %s)", config.DB_PATH)
     app = QApplication(sys.argv)
     style.apply_theme(app)
+    app.setApplicationName("psppt")
+    app.setDesktopFileName("psppt")
     icon_path = config.PROJECT_ROOT / "img" / "app-icon.png"
     if icon_path.is_file():
         app.setWindowIcon(QIcon(str(icon_path)))
     window = MainWindow()
+    window.setWindowIcon(app.windowIcon())
     window.show()
     log.info("main window ready")
-    threading.Thread(target=_start_bundle_check, args=(window,), daemon=True).start()
+    QTimer.singleShot(1200, window.maybe_offer_covers_bundle)
+
+    # Ctrl+C should close the window gracefully (running closeEvent's thread
+    # cleanup) rather than tearing Qt down mid-thread, which segfaults.
+    interrupt = {"pending": False}
+
+    def _sigint_handler(signum, frame):
+        interrupt["pending"] = True
+
+    signal.signal(signal.SIGINT, _sigint_handler)
+    sigint_timer = QTimer()
+    sigint_timer.setInterval(100)
+    sigint_timer.timeout.connect(
+        lambda: window.close() if interrupt["pending"] else None)
+    sigint_timer.start()
+
     return app.exec()
 
 

app/main.py

@@ -1,4 +1,4 @@
-"""PSP Preservation Tool entry point (native GUI).
+"""psppt entry point (native GUI).
 
 Run with::
 

app/nopaystation.py

@@ -151,7 +151,7 @@ def fetch_items(content_type: str, url: str = "", timeout: int = 60, force: bool
             return items
 
     try:
-        req = urllib.request.Request(url, headers={"User-Agent": "psp-preserve/0.1"})
+        req = urllib.request.Request(url, headers={"User-Agent": "psppt/0.1"})
         with urllib.request.urlopen(req, timeout=timeout) as resp:
             data = resp.read()
         text = data.decode("utf-8", errors="replace")

app/openvgdb.py

@@ -155,7 +155,7 @@ def scrape(limit=None, workers=8, rate=3.0):
     log.info("downloading OpenVGDB dump (%s)…", OVGDB_ZIP_URL)
     tmpdir = Path(tempfile.mkdtemp(prefix="openvgdb-"))
     dump_zip = tmpdir / "openvgdb.zip"
-    req = urllib.request.Request(OVGDB_ZIP_URL, headers={"User-Agent": "psp-preserve/0.1"})
+    req = urllib.request.Request(OVGDB_ZIP_URL, headers={"User-Agent": "psppt/0.1"})
     with urllib.request.urlopen(req, timeout=60) as r, open(dump_zip, "wb") as f:
         f.write(r.read())
 

app/queue.py

@@ -79,13 +79,13 @@ class TransferQueue(QObject):
     job_finished = Signal(dict)
     job_removed = Signal(int)
 
-    def __init__(self, parent=None):
+    def __init__(self, parent=None, max_concurrent=3):
         super().__init__(parent)
+        self.max_concurrent = max(1, int(max_concurrent))
         self.jobs = []
         self._pending = []
-        self._current = None
-        self._thread = None
-        self._worker = None
+        # job_id -> (QThread, JobWorker) for jobs currently running in parallel.
+        self._running = {}
         # Keep strong references to every worker/thread for their full lifetime.
         # Dropping a Python ref to a QObject that was moved to another thread
         # deletes it directly and crashes (bus error).
@@ -115,8 +115,10 @@ class TransferQueue(QObject):
             self.job_updated.emit(job.to_dict())
             self.job_finished.emit(job.to_dict())
             return
-        if job.status == "running" and self._worker is not None:
-            self._worker.cancel()
+        if job.status == "running":
+            pair = self._running.get(job_id)
+            if pair is not None:
+                pair[1].cancel()
             job.status = "cancelling"
             self.job_updated.emit(job.to_dict())
 
@@ -140,8 +142,8 @@ class TransferQueue(QObject):
             self.remove(jid)
 
     def shutdown(self):
-        if self._worker is not None:
-            self._worker.cancel()
+        for _t, worker in self._running.values():
+            worker.cancel()
         for t in self._threads:
             try:
                 if t.isRunning():
@@ -157,30 +159,29 @@ class TransferQueue(QObject):
         return None
 
     def _start_next(self):
-        if self._current is not None or not self._pending:
-            return
-        job = self._pending.pop(0)
-        self._current = job
-        job.status = "running"
-        log.info("starting job #%d: %s (%s)", job.id, job.title, job.kind)
-        self.job_updated.emit(job.to_dict())
+        while len(self._running) < self.max_concurrent and self._pending:
+            job = self._pending.pop(0)
+            job.status = "running"
+            log.info("starting job #%d: %s (%s)", job.id, job.title, job.kind)
+            self.job_updated.emit(job.to_dict())
 
-        self._thread = QThread(self)
-        self._worker = JobWorker(job.source, job.dest_dir, job)
-        self._worker.moveToThread(self._thread)
-        self._thread.started.connect(self._worker.run)
-        self._worker.progress.connect(self._on_progress)
-        self._worker.finished.connect(self._on_finished)
-        self._worker.skipped.connect(self._on_skipped)
-        self._worker.cancelled.connect(self._on_cancelled)
-        self._worker.failed.connect(self._on_failed)
-        for sig in (self._worker.finished, self._worker.skipped,
-                    self._worker.cancelled, self._worker.failed):
-            sig.connect(self._thread.quit)
-        self._thread.finished.connect(self._on_thread_finished)
-        self._threads.append(self._thread)
-        self._workers.append(self._worker)
-        self._thread.start()
+            thread = QThread(self)
+            worker = JobWorker(job.source, job.dest_dir, job)
+            worker.moveToThread(thread)
+            thread.started.connect(worker.run)
+            worker.progress.connect(self._on_progress)
+            worker.finished.connect(self._on_finished)
+            worker.skipped.connect(self._on_skipped)
+            worker.cancelled.connect(self._on_cancelled)
+            worker.failed.connect(self._on_failed)
+            for sig in (worker.finished, worker.skipped,
+                        worker.cancelled, worker.failed):
+                sig.connect(thread.quit)
+            thread.finished.connect(self._on_thread_finished)
+            self._running[job.id] = (thread, worker)
+            self._threads.append(thread)
+            self._workers.append(worker)
+            thread.start()
 
     def _on_progress(self, job_id, stage, fraction, detail):
         job = self._find(job_id)
@@ -218,10 +219,12 @@ class TransferQueue(QObject):
             self.job_finished.emit(job.to_dict())
 
     def _on_thread_finished(self):
-        # Queued to the main thread once the worker thread has fully stopped,
-        # so it is now safe to drop the "current" pointers and advance.
-        self._current = None
-        self._thread = None
-        self._worker = None
+        # Queued to the main thread once a worker thread has fully stopped, so
+        # it is now safe to drop its pointers and advance the queue.
+        thread = self.sender()
+        for jid, pair in list(self._running.items()):
+            if pair[0] is thread:
+                del self._running[jid]
+                break
         self._start_next()
 

app/transfers.py

@@ -175,6 +175,33 @@ class Source:
         raise NotImplementedError
 
 
+class CoversBundleSource:
+    """Download the combined offline cover bundle (runs as a queue job)."""
+    label = "psppt-covers.zip"
+
+    def __init__(self, url=""):
+        self.url = url
+
+    def download(self, item, dest_dir, progress_cb=None, cancel_event=None):
+        from . import covers
+
+        def on_progress(done, total):
+            if progress_cb is None:
+                return
+            frac = (done / total) if total else 0.0
+            detail = (f"{done / (1 << 20):.0f} / {total / (1 << 20):.0f} MB"
+                      if total else "")
+            progress_cb("Downloading", frac, detail)
+
+        try:
+            result = covers.download_covers_bundle(self.url,
+                                                   progress_cb=on_progress,
+                                                   cancel_event=cancel_event)
+        except InterruptedError:
+            raise TransferCancelled() from None
+        return str(result)
+
+
 class FileCopySource(Source):
     """Copy a single local file (library -> PSP or PSP -> library).
 
@@ -284,7 +311,7 @@ class RemoteStoreSource(Source):
         self.token = token or ""
 
     def _headers(self):
-        headers = {"User-Agent": "psp-preserve/0.1"}
+        headers = {"User-Agent": "psppt/0.1"}
         if self.token:
             headers["Authorization"] = f"Bearer {self.token}"
         return headers
@@ -347,7 +374,7 @@ class ArchiveOrgSource(Source):
         return f"https://archive.org/download/{self.item}"
 
     def _headers(self):
-        headers = {"User-Agent": "psp-preserve/0.1"}
+        headers = {"User-Agent": "psppt/0.1"}
         cookie = "; ".join(
             p for p in (
                 f"logged-in-sig={self.sig}" if self.sig else "",
@@ -479,11 +506,19 @@ class NoPayStationSource(Source):
     def __init__(self, content_type, tsv_url="", force=False):
         from . import nopaystation
         self.content_type = content_type
-        self.tsv_url = tsv_url or nopaystation.tsv_url(content_type)
+        self.tsv_url = tsv_url or ("" if content_type == "all" else nopaystation.tsv_url(content_type))
         self.force = force
 
     def scan(self, root=None):
         from . import nopaystation
+        if self.content_type == "all":
+            items = []
+            for ct in ("psp", "psx", "theme", "dlc"):
+                try:
+                    items.extend(nopaystation.fetch_items(ct, force=self.force))
+                except Exception:  # noqa: BLE001 - skip a source that fails
+                    log.warning("could not fetch NoPayStation %s list", ct)
+            return items
         return nopaystation.fetch_items(self.content_type, self.tsv_url, force=self.force)
 
     def download(self, item, dest_dir, progress_cb=None, cancel_event=None):
@@ -493,6 +528,7 @@ class NoPayStationSource(Source):
 
         # The bundled Python decryptor handles PSP/PSX/themes/DLC directly.
         title_id = item.get("title_id") or item.get("content_id") or ""
+        item_ct = item.get("content_type") or self.content_type
         pkg_name = re.sub(r"[^A-Za-z0-9_-]", "", title_id) or "pkg"
         tmp = Path(tempfile.mkdtemp(prefix="nps-download-"))
         pkg = tmp / f"{pkg_name}.pkg"
@@ -500,10 +536,10 @@ class NoPayStationSource(Source):
             if progress_cb is not None:
                 progress_cb("Downloading", 0.0, "")
             download_url(item["pkg_url"], pkg, None, progress_cb, cancel_event)
-            kind_hint = self.content_type if self.content_type in ("theme", "dlc") else None
+            kind_hint = item_ct if item_ct in ("theme", "dlc") else None
             folder = nopaystation.extract_pkg(pkg, title_id, dest_dir,
                                               kind_hint, progress_cb, cancel_event)
-            if self.content_type in ("theme", "dlc"):
+            if item_ct in ("theme", "dlc"):
                 _write_sidecar(folder, item)
             return folder
         finally:

docker-compose.yml

@@ -1,7 +1,7 @@
 services:
-  psp-preserve:
+  psppt:
     build: .
-    container_name: psp-preserve
+    container_name: psppt
     # Attach to Unraid's macvlan bridge so the API gets its own LAN IP.
     # Plain HTTP for now; see Caddyfile to add Let's Encrypt TLS later.
     networks:

packaging/install.sh

@@ -0,0 +1,81 @@
+#!/bin/sh
+# Install psppt to a system prefix.
+#
+# FHS-friendly layout:
+#   $PREFIX/bin/psppt              symlink -> payload binary
+#   $PREFIX/lib/psppt/             app payload (binary + lib/)
+#   $PREFIX/share/applications/    desktop entry
+#   $PREFIX/share/icons/hicolor/256x256/apps/  app icon
+#
+# The PyInstaller onedir build keeps the executable and its `lib/` contents
+# directory side by side, so both live under $PREFIX/lib/psppt/ and a
+# symlink exposes the binary at $PREFIX/bin/psppt.
+#
+# Usage (run from inside the extracted tarball):
+#   sudo ./install.sh                 # install to /usr/local (default)
+#   sudo ./install.sh --prefix=/usr   # install to /usr
+#   sudo ./install.sh --uninstall     # remove from the default prefix
+set -eu
+
+PREFIX=/usr/local
+MODE=install
+
+for arg in "$@"; do
+    case "$arg" in
+        --prefix=*) PREFIX=${arg#--prefix=} ;;
+        --uninstall) MODE=uninstall ;;
+        *) echo "unknown argument: $arg" >&2; exit 2 ;;
+    esac
+done
+
+SRC_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+LIBDIR="$PREFIX/lib/psppt"
+BINDIR="$PREFIX/bin"
+APPDIR="$PREFIX/share/applications"
+ICONDIR="$PREFIX/share/icons/hicolor/256x256/apps"
+APP_BIN="$LIBDIR/psppt"
+
+require_root() {
+    if [ "$(id -u)" -ne 0 ]; then
+        echo "run as root (e.g. sudo)" >&2
+        exit 1
+    fi
+}
+
+uninstall() {
+    rm -f "$BINDIR/psppt"
+    rm -f "$APPDIR/psppt.desktop"
+    rm -f "$ICONDIR/psppt.png"
+    rm -rf "$LIBDIR"
+    echo "Uninstalled from $PREFIX"
+}
+
+if [ "$MODE" = uninstall ]; then
+    require_root
+    uninstall
+    exit 0
+fi
+
+require_root
+
+# The tarball ships these next to this script.
+for f in psppt lib psppt.desktop app-icon.png; do
+    if [ ! -e "$SRC_DIR/$f" ]; then
+        echo "missing $f (run install.sh from inside the extracted tarball)" >&2
+        exit 1
+    fi
+done
+
+mkdir -p "$LIBDIR" "$BINDIR" "$APPDIR" "$ICONDIR"
+rm -rf "$LIBDIR"
+mkdir -p "$LIBDIR"
+cp -a "$SRC_DIR/psppt" "$LIBDIR/psppt"
+cp -a "$SRC_DIR/lib" "$LIBDIR/lib"
+install -m 0644 "$SRC_DIR/psppt.desktop" "$APPDIR/psppt.desktop"
+install -m 0644 "$SRC_DIR/app-icon.png" "$ICONDIR/psppt.png"
+ln -sfn "$APP_BIN" "$BINDIR/psppt"
+
+echo "Installed to $PREFIX"
+echo "  binary:  $BINDIR/psppt -> $APP_BIN"
+echo "  payload: $LIBDIR"
+echo "  desktop: $APPDIR/psppt.desktop"

packaging/psppt.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Name=psppt
+Comment=Preserve and manage your PSP library
+Exec=psppt
+Icon=psppt
+Terminal=false
+Categories=Utility;AudioVideo;
+StartupWMClass=psppt

psppt.spec

@@ -1,13 +1,13 @@
 # -*- mode: python ; coding: utf-8 -*-
-"""PyInstaller spec: build the PSP Preservation Tool (onedir).
+"""PyInstaller spec: build psppt (onedir).
 
-Bundles the read-only resources (DATs, PS1 loader, offline cover bundles,
-icons) under ``_internal/`` next to the executable. User-writable data
+Bundles the read-only resources (DATs, PS1 loader, cover templates, index
+catalogs, icons) under ``lib/`` next to the executable. User-writable data
 (credentials, manual covers, PS1 templates, NPS cache, library DB, cover
 cache) lives in the OS state dir at runtime — see ``app/config.py``.
 
-Usage:  pyinstaller --clean --noconfirm psp-preserve.spec
-Output: dist/psp-preserve/
+Usage:  pyinstaller --clean --noconfirm psppt.spec
+Output: dist/psppt/
 """
 from PyInstaller.utils.hooks import collect_dynamic_libs, collect_submodules
 
@@ -15,8 +15,6 @@ datas = [
     ("data/dats", "data/dats"),
     ("data/loader", "data/loader"),
     ("data/supplement.json", "data"),
-    ("data/covers/libretro-covers.zip", "data/covers"),
-    ("data/covers/openvgdb-covers.zip", "data/covers"),
     ("data/covers/libretro-index.json", "data/covers"),
     ("data/covers/openvgdb-index.json", "data/covers"),
     ("data/covers/UMD_COVER_TEMPLATE.png", "data/covers"),
@@ -24,6 +22,7 @@ datas = [
     ("data/covers/UMD_GAME_COVER_TEMPLATE.png", "data/covers"),
     ("img/app-icon.png", "img"),
     ("img/chevron.png", "img"),
+    ("packaging/psppt.desktop", "."),
 ]
 
 a = Analysis(
@@ -46,13 +45,14 @@ exe = EXE(
     a.scripts,
     [],
     exclude_binaries=True,
-    name="psp-preserve",
+    name="psppt",
     debug=False,
     bootloader_ignore_signals=False,
     strip=False,
     upx=False,
     console=False,
     disable_windowed_traceback=False,
+    contents_directory="lib",
 )
 
 coll = COLLECT(
@@ -61,5 +61,5 @@ coll = COLLECT(
     a.datas,
     strip=False,
     upx=False,
-    name="psp-preserve",
+    name="psppt",
 )

runner/Dockerfile

@@ -12,34 +12,50 @@ ENV DEBIAN_FRONTEND=noninteractive \
     WINEDLLOVERRIDES="mscoree,mshtml=" \
     PYTHON_VERSION=3.12.8
 
-# Wine (64-bit), node + git for JS actions, and build/package tooling.
-RUN apt-get update && apt-get install -y --no-install-recommends \
-        ca-certificates curl wget unzip zip \
-        wine wine64 xvfb winetricks cabextract \
-        nodejs git \
+# WineHQ wine-staging (newer than Debian's 8.0, needed for Python 3.12),
+# node + git for JS actions, and build/package tooling.
+RUN dpkg --add-architecture i386 \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends ca-certificates curl wget gnupg2 \
+    && mkdir -p /etc/apt/keyrings \
+    && wget -qO- https://dl.winehq.org/wine-builds/winehq.key | gpg --dearmor -o /etc/apt/keyrings/winehq.gpg \
+    && echo "deb [signed-by=/etc/apt/keyrings/winehq.gpg] https://dl.winehq.org/wine-builds/debian/ bookworm main" > /etc/apt/sources.list.d/winehq.list \
+    && apt-get update \
+    && apt-get install -y --install-recommends winehq-staging \
+    && apt-get install -y --no-install-recommends unzip zip xvfb xauth cabextract nodejs git \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
+# winetricks (standalone script; not packaged in Debian main).
+RUN wget -qO /usr/local/bin/winetricks \
+      "https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks" \
+    && chmod +x /usr/local/bin/winetricks
+
 # Gitea Actions runner (linux-amd64 binary).
 RUN wget -qO /usr/local/bin/act_runner \
       "https://gitea.com/gitea/act_runner/releases/download/v0.6.1/act_runner-0.6.1-linux-amd64" \
     && chmod +x /usr/local/bin/act_runner
 
-# Windows CPython 3.12, silent install into C:\Python312.
-RUN wget -qO /tmp/python-installer.exe \
-      "https://www.python.org/ftp/python/${PYTHON_VERSION}/python-${PYTHON_VERSION}-amd64.exe" \
-    && xvfb-run -a wine /tmp/python-installer.exe \
-        /quiet InstallAllUsers=1 PrependPath=1 Include_test=0 Include_launcher=0 Shortcuts=0 \
-    && rm -f /tmp/python-installer.exe \
-    && wine "C:\\Python312\\python.exe" --version
-
-# MSVC runtime required by PySide6's Qt DLLs.
+# MSVC runtime required by PySide6's Qt DLLs (also initializes the Wine prefix).
 RUN xvfb-run -a winetricks --unattended vcrun2022
 
+# Windows CPython 3.12 (embeddable zip) + pip.
+RUN wget -qO /tmp/pyembed.zip \
+      "https://www.python.org/ftp/python/${PYTHON_VERSION}/python-${PYTHON_VERSION}-embed-amd64.zip" \
+    && mkdir -p /root/.wine/drive_c/Python312 \
+    && cd /root/.wine/drive_c/Python312 \
+    && unzip -q /tmp/pyembed.zip \
+    && rm -f /tmp/pyembed.zip \
+    && printf 'python312.zip\n.\nimport site\nLib\\site-packages\n' > python312._pth \
+    && wine "C:\\Python312\\python.exe" --version
+
 # Convenience wrapper: winpython -> wine C:\Python312\python.exe
 RUN printf '#!/bin/sh\nexec wine "C:\\Python312\\python.exe" "$@"\n' > /usr/local/bin/winpython \
     && chmod +x /usr/local/bin/winpython
 
-# Pre-install the Windows build deps so CI jobs start fast.
+# Bootstrap pip, then pre-install the Windows build deps so CI jobs start fast.
+RUN wget -qO /tmp/get-pip.py https://bootstrap.pypa.io/get-pip.py \
+    && wine "C:\\Python312\\python.exe" /tmp/get-pip.py \
+    && rm -f /tmp/get-pip.py
 COPY requirements-build.txt /tmp/requirements-build.txt
 RUN winpython -m pip install --upgrade pip \
     && winpython -m pip install -r /tmp/requirements-build.txt \

scripts/make-covers-bundle.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+"""Package the offline cover zips into a single distributable bundle.
+
+Outputs ``psppt-covers.zip`` containing ``libretro-covers.zip`` and
+``openvgdb-covers.zip``. Attach it to the Gitea ``covers`` release; the app
+downloads it on first run when the user opts in.
+
+Usage:  python3 scripts/make-covers-bundle.py [out-path]
+"""
+import sys
+import zipfile
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parent.parent
+COVERS = ROOT / "data" / "covers"
+INNER = ("libretro-covers.zip", "openvgdb-covers.zip")
+
+
+def main(argv):
+    out = Path(argv[1]) if len(argv) > 1 else ROOT / "psppt-covers.zip"
+    missing = [n for n in INNER if not (COVERS / n).exists()]
+    if missing:
+        print(f"missing: {', '.join(missing)} in {COVERS}", file=sys.stderr)
+        return 2
+    # Inner zips are already compressed; store them to avoid recompressing.
+    with zipfile.ZipFile(out, "w", zipfile.ZIP_STORED) as z:
+        for n in INNER:
+            print(f"adding {n} …")
+            z.write(COVERS / n, arcname=n)
+    size = out.stat().st_size / (1 << 20)
+    print(f"wrote {out} ({size:.0f} MB)")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main(sys.argv))