fix asterisk CORS_ALLOWED_ORIGINS, mentioned in #955

Bumps the github-actions group with 1 update: [softprops/action-gh-release](https://github.com/softprops/action-gh-release).


Updates `softprops/action-gh-release` from 2 to 3
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](https://github.com/softprops/action-gh-release/compare/v2...v3)

---
updated-dependencies:
- dependency-name: softprops/action-gh-release
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
         env:
           CI: true
       - name: Install uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
       - name: Install Python dependencies
         run: uv sync --frozen --group dev
       - name: Run backend smoke checks
@@ -209,7 +209,7 @@ jobs:
             git push origin ":refs/tags/$TAG_NAME" || true
           fi
       - name: Create GitHub Release
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v3
         with:
           tag_name: ${{ steps.date.outputs.date }}
           name: Release ${{ steps.date.outputs.date }}

.vscode/launch.json

@@ -14,6 +14,7 @@
                     "DOWNLOAD_DIR": "${env:USERPROFILE}/Downloads",
                     "STATE_DIR": "${env:TEMP}",
                     "ALLOW_YTDL_OPTIONS_OVERRIDES": "true",
+                    "YTDL_OPTIONS_PRESETS": "{\"sponsorblock\": {\"postprocessors\": [{\"key\": \"SponsorBlock\", \"categories\": [\"sponsor\", \"selfpromo\", \"interaction\"]}, {\"key\": \"ModifyChapters\", \"remove_sponsor_segments\": [\"sponsor\", \"selfpromo\", \"interaction\"]}]}, \"embed-subs\": {\"writesubtitles\": true, \"writeautomaticsub\": true, \"subtitleslangs\": [\"en\", \"de\"], \"postprocessors\": [{\"key\": \"FFmpegEmbedSubtitle\"}]}, \"limit-rate\": {\"ratelimit\": 5000000}}",
                 }
             },
             "osx": {
@@ -21,6 +22,7 @@
                     "DOWNLOAD_DIR": "${env:HOME}/Downloads",
                     "STATE_DIR": "${env:TMPDIR}",
                     "ALLOW_YTDL_OPTIONS_OVERRIDES": "true",
+                    "YTDL_OPTIONS_PRESETS": "{\"sponsorblock\": {\"postprocessors\": [{\"key\": \"SponsorBlock\", \"categories\": [\"sponsor\", \"selfpromo\", \"interaction\"]}, {\"key\": \"ModifyChapters\", \"remove_sponsor_segments\": [\"sponsor\", \"selfpromo\", \"interaction\"]}]}, \"embed-subs\": {\"writesubtitles\": true, \"writeautomaticsub\": true, \"subtitleslangs\": [\"en\", \"de\"], \"postprocessors\": [{\"key\": \"FFmpegEmbedSubtitle\"}]}, \"limit-rate\": {\"ratelimit\": 5000000}}",
                 }
             },
             "console": "integratedTerminal"

AGENTS.md

@@ -0,0 +1,60 @@
+# Agent Guidelines
+
+## README.md size constraint
+
+The README.md is synced to Docker Hub, which has a **25,000 character limit**.
+Any change to README.md **must** keep the file under 25,000 characters (`wc -c README.md`).
+If an addition would exceed the limit, trim existing prose elsewhere — prefer tightening verbose descriptions over removing sections.
+
+## Tech stack
+
+- **Backend:** Python 3.13+, aiohttp, python-socketio 5.x, yt-dlp
+- **Frontend:** Angular 21, TypeScript, Bootstrap 5, SASS, ngx-socket-io
+- **Package managers:** uv (Python), pnpm (frontend)
+- **Container:** Multi-stage Docker (Node builder + Python runtime), multi-arch (amd64/arm64)
+
+## Build & test commands
+
+```bash
+# Frontend (run from ui/)
+pnpm install --frozen-lockfile
+pnpm run lint
+pnpm run build
+pnpm exec ng test --watch=false
+
+# Backend (run from repo root)
+uv sync --frozen --group dev
+python -m compileall app
+uv run pytest app/tests/
+```
+
+All of these run in CI (`.github/workflows/main.yml`) on every push to master and must pass.
+
+## Code style
+
+Follow `.editorconfig`:
+- Python: 4-space indent
+- Everything else (TypeScript, YAML, JSON, HTML): 2-space indent
+- UTF-8, LF line endings, trim trailing whitespace, final newline
+
+Frontend additionally uses ESLint (`ui/eslint.config.js`) and Prettier (config in `ui/package.json`: `printWidth=100`, `singleQuote=true`).
+
+## Project structure
+
+```
+app/main.py          — HTTP server, Socket.IO events, REST API routes, Config class
+app/ytdl.py          — Download queue logic, yt-dlp integration
+app/subscriptions.py — Channel/playlist subscription manager
+app/state_store.py   — JSON-based persistent storage with atomic writes
+app/dl_formats.py    — Video/audio codec/quality mapping
+app/tests/           — pytest tests (asyncio_mode=auto)
+ui/src/app/          — Angular standalone components (no NgModules)
+```
+
+## Key conventions
+
+- Backend configuration lives in the `Config` class in `app/main.py` with env-var defaults in `_DEFAULTS`. New env vars go there.
+- Real-time communication uses Socket.IO events, not REST polling.
+- Frontend uses standalone Angular components with `inject()` for DI, RxJS Subjects for state, and `takeUntilDestroyed()` for cleanup.
+- State is persisted as JSON files via `AtomicJsonStore` in `app/state_store.py`.
+- No pre-commit hooks — linting and tests are enforced in CI only.

README.md

@@ -66,11 +66,11 @@ Certain values can be set via environment variables, using the `-e` parameter on
 * __OUTPUT_TEMPLATE_CHAPTER__: The template for the filenames of the downloaded videos when split into chapters via postprocessors. Defaults to `%(title)s - %(section_number)s %(section_title)s.%(ext)s`.
 * __OUTPUT_TEMPLATE_PLAYLIST__: The template for the filenames of the downloaded videos when downloaded as a playlist. Defaults to `%(playlist_title)s/%(title)s.%(ext)s`. Set to empty to use `OUTPUT_TEMPLATE` instead.
 * __OUTPUT_TEMPLATE_CHANNEL__: The template for the filenames of the downloaded videos when downloaded as a channel. Defaults to `%(channel)s/%(title)s.%(ext)s`. Set to empty to use `OUTPUT_TEMPLATE` instead.
-* __YTDL_OPTIONS__: Additional options to pass to yt-dlp in JSON format. [See available options here](https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/YoutubeDL.py#L222). They roughly correspond to command-line options, though some do not have exact equivalents here. For example, `--recode-video` has to be specified via `postprocessors`. Also note that dashes are replaced with underscores. You may find [this script](https://github.com/yt-dlp/yt-dlp/blob/master/devscripts/cli_to_api.py) helpful for converting from command-line options to `YTDL_OPTIONS`.
-* __YTDL_OPTIONS_FILE__: A path to a JSON file that will be loaded and used for populating `YTDL_OPTIONS` above. Please note that if both `YTDL_OPTIONS_FILE` and `YTDL_OPTIONS` are specified, the options in `YTDL_OPTIONS` take precedence. The file will be monitored for changes and reloaded automatically when changes are detected.
-* __YTDL_OPTIONS_PRESETS__: A JSON object mapping preset names to yt-dlp option objects. These preset names are exposed in the web UI's Advanced Options panel so users can pick per-download overrides without changing the global `YTDL_OPTIONS`.
-* __YTDL_OPTIONS_PRESETS_FILE__: A path to a JSON file containing `YTDL_OPTIONS_PRESETS`. If both are specified, values from `YTDL_OPTIONS_PRESETS_FILE` are merged into `YTDL_OPTIONS_PRESETS`.
-* __ALLOW_YTDL_OPTIONS_OVERRIDES__: Whether to show the web UI field for manual per-download `ytdl_options_overrides`. Defaults to `false`. Enabling this allows arbitrary yt-dlp API options to be supplied by UI users, which may enable arbitrary command execution inside the container depending on the options used. Enable only if you understand and accept that risk.
+* __YTDL_OPTIONS__: Additional options to pass to yt-dlp, as a JSON object. See [Configuring yt-dlp options](#%EF%B8%8F-configuring-yt-dlp-options) for details, examples, and available options reference.
+* __YTDL_OPTIONS_FILE__: Path to a JSON file containing yt-dlp options. Monitored and reloaded automatically on changes. See [Configuring yt-dlp options](#%EF%B8%8F-configuring-yt-dlp-options).
+* __YTDL_OPTIONS_PRESETS__: Named bundles of yt-dlp options, selectable per download in the UI. See [Configuring yt-dlp options](#%EF%B8%8F-configuring-yt-dlp-options) for format and examples.
+* __YTDL_OPTIONS_PRESETS_FILE__: Path to a JSON file containing presets. Monitored and reloaded automatically on changes. See [Configuring yt-dlp options](#%EF%B8%8F-configuring-yt-dlp-options).
+* __ALLOW_YTDL_OPTIONS_OVERRIDES__: Whether to show a free-text field in the UI for per-download yt-dlp option overrides. Defaults to `false`. See [Configuring yt-dlp options](#%EF%B8%8F-configuring-yt-dlp-options) for details and security considerations.
 
 ### 🌐 Web Server & URLs
 
@@ -82,6 +82,7 @@ Certain values can be set via environment variables, using the `-e` parameter on
 * __HTTPS__: Use `https` instead of `http` (__CERTFILE__ and __KEYFILE__ required). Defaults to `false`.
 * __CERTFILE__: HTTPS certificate file path.
 * __KEYFILE__: HTTPS key file path.
+* __CORS_ALLOWED_ORIGINS__: Comma-separated list of origins permitted to make cross-origin requests to the MeTube API. When unset or empty, all cross-origin requests are denied. This must be configured for [bookmarklets](#-bookmarklet) and any other browser-based tools that contact MeTube from a different origin. Example: `https://www.youtube.com,https://www.vimeo.com`.
 * __ROBOTS_TXT__: A path to a `robots.txt` file mounted in the container.
 
 ### 🏠 Basic Setup
@@ -93,6 +94,120 @@ Certain values can be set via environment variables, using the `-e` parameter on
 * __LOGLEVEL__: Log level, can be set to `DEBUG`, `INFO`, `WARNING`, `ERROR`, `CRITICAL`, or `NONE`. Defaults to `INFO`. 
 * __ENABLE_ACCESSLOG__: Whether to enable access log. Defaults to `false`.
 
+## 🎛️ Configuring yt-dlp options
+
+MeTube lets you customize how [yt-dlp](https://github.com/yt-dlp/yt-dlp) behaves at three levels, from broadest to most specific:
+
+1. **Global options** — apply to every download by default.
+2. **Presets** — named bundles of options that users can pick per download from the UI.
+3. **Per-download overrides** — free-form options entered in the UI for a single download.
+
+When a download starts, these layers are combined in order. If the same option appears in more than one layer, the more specific one wins: per-download overrides beat presets, and presets beat global options.
+
+### Option format
+
+yt-dlp options in MeTube are expressed as JSON objects. The keys are yt-dlp API option names, which roughly correspond to command-line flags with dashes replaced by underscores. For example, the command-line flag `--write-subs` becomes `"writesubtitles": true` in JSON.
+
+> **Tip:** Some command-line flags don't have a direct single-key equivalent — for instance, `--embed-thumbnail` and `--recode-video` must be expressed via `"postprocessors"`. A full list of available API options can be found [in the yt-dlp source](https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/YoutubeDL.py#L224), and [this conversion script](https://github.com/yt-dlp/yt-dlp/blob/master/devscripts/cli_to_api.py) can help translate command-line flags to their API equivalents.
+
+### Global options
+
+Global options form the baseline for every download. There are two ways to define them, and you can use either or both:
+
+**Inline via environment variable** (`YTDL_OPTIONS`) — pass a JSON object directly:
+
+```yaml
+environment:
+  - 'YTDL_OPTIONS={"writesubtitles": true, "subtitleslangs": ["en", "de"], "updatetime": false, "writethumbnail": true}'
+```
+
+**Via a JSON file** (`YTDL_OPTIONS_FILE`) — mount a file into the container and point to it:
+
+```yaml
+volumes:
+  - /path/to/ytdl-options.json:/config/ytdl-options.json
+environment:
+  - YTDL_OPTIONS_FILE=/config/ytdl-options.json
+```
+
+where `ytdl-options.json` contains:
+
+```json
+{
+  "writesubtitles": true,
+  "subtitleslangs": ["en", "de"],
+  "updatetime": false,
+  "writethumbnail": true
+}
+```
+
+The file is monitored for changes and reloaded automatically — no container restart needed. If you use both methods and they define the same key, the **file takes precedence**.
+
+### Presets
+
+Presets let you define named bundles of options that appear in the web UI under **Advanced Options** as "Option Presets". Users can select one or more presets per download, making it easy to apply common option combinations without editing global settings.
+
+Like global options, presets can be set inline or via a file:
+
+* `YTDL_OPTIONS_PRESETS` — a JSON object where each key is a preset name and its value is a set of yt-dlp options.
+* `YTDL_OPTIONS_PRESETS_FILE` — path to a JSON file containing presets, monitored and reloaded on changes.
+
+If both are used and they define a preset with the same name, the **file's version takes precedence**.
+
+**Example** — a presets file defining three presets:
+
+```json
+{
+  "sponsorblock": {
+    "postprocessors": [
+      { "key": "SponsorBlock", "categories": ["sponsor", "selfpromo", "interaction"] },
+      { "key": "ModifyChapters", "remove_sponsor_segments": ["sponsor", "selfpromo", "interaction"] }
+    ]
+  },
+  "embed-subs": {
+    "writesubtitles": true,
+    "writeautomaticsub": true,
+    "subtitleslangs": ["en", "de"],
+    "postprocessors": [{ "key": "FFmpegEmbedSubtitle" }]
+  },
+  "limit-rate": {
+    "ratelimit": 5000000
+  }
+}
+```
+
+This makes three presets available in the UI:
+* **sponsorblock** — strips sponsor, self-promo, and interaction segments from videos.
+* **embed-subs** — downloads English and German subtitles and embeds them into the video file.
+* **limit-rate** — caps download speed to ~5 MB/s.
+
+When multiple presets are selected for a download, they are applied in order. If two presets set the same option, the later one wins.
+
+### Per-download overrides
+
+For one-off tweaks, MeTube can expose a free-text JSON field in the UI ("Custom yt-dlp Options") where users type yt-dlp options that apply only to that single download. This is disabled by default:
+
+```yaml
+environment:
+  - ALLOW_YTDL_OPTIONS_OVERRIDES=true
+```
+
+Once enabled, the field appears under **Advanced Options**. Any options entered there take the highest priority, overriding both global options and selected presets.
+
+> **⚠️ Security note:** Enabling this allows arbitrary yt-dlp API options to be supplied by anyone with access to the UI. Depending on the options used, this may enable arbitrary command execution inside the container. Enable only in trusted environments.
+
+### How the layers combine
+
+When a download starts, the final set of yt-dlp options is built in this order:
+
+1. Start with **global options** (`YTDL_OPTIONS` / `YTDL_OPTIONS_FILE`).
+2. Apply each selected **preset** in order (later presets overwrite earlier ones for conflicting keys).
+3. Apply any **per-download overrides** on top (overwrite everything else for conflicting keys).
+
+**Example:** Suppose your global options set `"writesubtitles": false`, but you select a preset that sets `"writesubtitles": true`. Subtitles will be written for that download because the preset overrides the global setting. If you additionally enter `{"writesubtitles": false}` in the per-download overrides field, that value wins and subtitles will not be written.
+
+### Configuration cookbooks
+
 The project's Wiki contains examples of useful configurations contributed by users of MeTube:
 * [YTDL_OPTIONS Cookbook](https://github.com/alexta69/metube/wiki/YTDL_OPTIONS-Cookbook)
 * [OUTPUT_TEMPLATE Cookbook](https://github.com/alexta69/metube/wiki/OUTPUT_TEMPLATE-Cookbook)
@@ -111,7 +226,7 @@ In case you need to use your browser's cookies with MeTube, for example to downl
 
 ## 🔌 Browser extensions
 
-Browser extensions allow right-clicking videos and sending them directly to MeTube. Please note that if you're on an HTTPS page, your MeTube instance must be behind an HTTPS reverse proxy (see below) for the extensions to work.
+Browser extensions allow right-clicking videos and sending them directly to MeTube. If you're on an HTTPS page, your MeTube instance must be behind an HTTPS reverse proxy (see below) for extensions to work.
 
 __Chrome:__ contributed by [Rpsl](https://github.com/rpsl). You can install it from [Google Chrome Webstore](https://chrome.google.com/webstore/detail/metube-downloader/fbmkmdnlhacefjljljlbhkodfmfkijdh) or use developer mode and install [from sources](https://github.com/Rpsl/metube-browser-extension).
 
@@ -121,21 +236,12 @@ __Firefox:__ contributed by [nanocortex](https://github.com/nanocortex). You can
 
 [rithask](https://github.com/rithask) created an iOS shortcut to send URLs to MeTube from Safari. Enter the MeTube instance address when prompted which will be saved for later use. You can run the shortcut from Safari’s share menu. The shortcut can be downloaded from [this iCloud link](https://www.icloud.com/shortcuts/66627a9f334c467baabdb2769763a1a6).
 
-## 📱 iOS Compatibility
-
-iOS has strict requirements for video files, requiring h264 or h265 video codec and aac audio codec in MP4 container. This can sometimes be a lower quality than the best quality available. To accommodate iOS requirements, when downloading a MP4 format you can choose "Best (iOS)" to get the best quality formats as compatible as possible with iOS requirements.
-
-To force all downloads to be converted to an iOS-compatible codec, insert this as an environment variable: 
-
-```yaml
-  environment:
-    - 'YTDL_OPTIONS={"format": "best", "exec": "ffmpeg -i %(filepath)q -c:v libx264 -c:a aac %(filepath)q.h264.mp4"}'
-```
-
 ## 🔖 Bookmarklet
 
 [kushfest](https://github.com/kushfest) has created a Chrome bookmarklet for sending the currently open webpage to MeTube. Please note that if you're on an HTTPS page, your MeTube instance must be configured with `HTTPS` as `true` in the environment, or be behind an HTTPS reverse proxy (see below) for the bookmarklet to work.
 
+Since bookmarklets run in the context of the current page (e.g. youtube.com), the requests they make to MeTube are cross-origin. You must add the origins of sites where you use the bookmarklet to the __CORS_ALLOWED_ORIGINS__ environment variable, otherwise the browser will block the requests. For example, to use the bookmarklet on YouTube and Vimeo: `CORS_ALLOWED_ORIGINS=https://www.youtube.com,https://www.vimeo.com`.
+
 GitHub doesn't allow embedding JavaScript as a link, so the bookmarklet has to be created manually by copying the following code to a new bookmark you create on your bookmarks bar. Change the hostname in the URL below to point to your MeTube instance.
 
 ```javascript
@@ -148,23 +254,15 @@ javascript:!function(){xhr=new XMLHttpRequest();xhr.open("POST","https://metube.
 javascript:(function(){xhr=new XMLHttpRequest();xhr.open("POST","https://metube.domain.com/add");xhr.send(JSON.stringify({"url":document.location.href,"quality":"best"}));xhr.onload=function(){if(xhr.status==200){alert("Sent to metube!")}else{alert("Send to metube failed. Check the javascript console for clues.")}}})();
 ```
 
-The above bookmarklets use `alert()` as a success/failure notification. The following will show a toast message instead:
-
-Chrome:
+The above bookmarklets use `alert()` for notifications. This variant shows a toast instead (Chrome — for Firefox, replace the `!function(){...}()` wrapper with `(function(){...})()`):
 
 ```javascript
 javascript:!function(){function notify(msg) {var sc = document.scrollingElement.scrollTop; var text = document.createElement('span');text.innerHTML=msg;var ts = text.style;ts.all = 'revert';ts.color = '#000';ts.fontFamily = 'Verdana, sans-serif';ts.fontSize = '15px';ts.backgroundColor = 'white';ts.padding = '15px';ts.border = '1px solid gainsboro';ts.boxShadow = '3px 3px 10px';ts.zIndex = '100';document.body.appendChild(text);ts.position = 'absolute'; ts.top = 50 + sc + 'px'; ts.left = (window.innerWidth / 2)-(text.offsetWidth / 2) + 'px'; setTimeout(function () { text.style.visibility = "hidden"; }, 1500);}xhr=new XMLHttpRequest();xhr.open("POST","https://metube.domain.com/add");xhr.send(JSON.stringify({"url":document.location.href,"quality":"best"}));xhr.onload=function() { if(xhr.status==200){notify("Sent to metube!")}else {notify("Send to metube failed. Check the javascript console for clues.")}}}();
 ```
 
-Firefox:
-
-```javascript
-javascript:(function(){function notify(msg) {var sc = document.scrollingElement.scrollTop; var text = document.createElement('span');text.innerHTML=msg;var ts = text.style;ts.all = 'revert';ts.color = '#000';ts.fontFamily = 'Verdana, sans-serif';ts.fontSize = '15px';ts.backgroundColor = 'white';ts.padding = '15px';ts.border = '1px solid gainsboro';ts.boxShadow = '3px 3px 10px';ts.zIndex = '100';document.body.appendChild(text);ts.position = 'absolute'; ts.top = 50 + sc + 'px'; ts.left = (window.innerWidth / 2)-(text.offsetWidth / 2) + 'px'; setTimeout(function () { text.style.visibility = "hidden"; }, 1500);}xhr=new XMLHttpRequest();xhr.open("POST","https://metube.domain.com/add");xhr.send(JSON.stringify({"url":document.location.href,"quality":"best"}));xhr.onload=function() { if(xhr.status==200){notify("Sent to metube!")}else {notify("Send to metube failed. Check the javascript console for clues.")}}})();
-```
-
 ## ⚡ Raycast extension
 
-[dotvhs](https://github.com/dotvhs) has created an [extension for Raycast](https://www.raycast.com/dot/metube) that allows adding videos to MeTube directly from Raycast.
+[dotvhs](https://github.com/dotvhs) has created an [extension for Raycast](https://www.raycast.com/dot/metube) for adding videos to MeTube directly from Raycast.
 
 ## 🔒 HTTPS support, and running behind a reverse proxy
 
@@ -188,11 +286,9 @@ services:
       - KEYFILE=/ssl/key.pem
 ```
 
-It's also possible to run MeTube behind a reverse proxy, in order to support authentication. HTTPS support can also be added in this way.
+MeTube can also run behind a reverse proxy for HTTPS termination or authentication. When serving under a subdirectory, set `URL_PREFIX` accordingly.
 
-When running behind a reverse proxy which remaps the URL (i.e. serves MeTube under a subdirectory and not under root), don't forget to set the URL_PREFIX environment variable to the correct value.
-
-If you're using the [linuxserver/swag](https://docs.linuxserver.io/general/swag) image for your reverse proxying needs (which I can heartily recommend), it already includes ready snippets for proxying MeTube both in [subfolder](https://github.com/linuxserver/reverse-proxy-confs/blob/master/metube.subfolder.conf.sample) and [subdomain](https://github.com/linuxserver/reverse-proxy-confs/blob/master/metube.subdomain.conf.sample) modes under the `nginx/proxy-confs` directory in the configuration volume. It also includes Authelia which can be used for authentication.
+The [linuxserver/swag](https://docs.linuxserver.io/general/swag) image includes ready-made snippets for MeTube in [subfolder](https://github.com/linuxserver/reverse-proxy-confs/blob/master/metube.subfolder.conf.sample) and [subdomain](https://github.com/linuxserver/reverse-proxy-confs/blob/master/metube.subdomain.conf.sample) modes, plus Authelia for authentication.
 
 ### 🌐 NGINX
 
@@ -244,28 +340,20 @@ example.com {
 
 ## 🔄 Updating yt-dlp
 
-The engine which powers the actual video downloads in MeTube is [yt-dlp](https://github.com/yt-dlp/yt-dlp). Since video sites regularly change their layouts, frequent updates of yt-dlp are required to keep up.
-
-There's an automatic nightly build of MeTube which looks for a new version of yt-dlp, and if one exists, the build pulls it and publishes an updated docker image. Therefore, in order to keep up with the changes, it's recommended that you update your MeTube container regularly with the latest image.
-
-I recommend installing and setting up [watchtower](https://github.com/nicholas-fedor/watchtower) for this purpose.
+MeTube is powered by [yt-dlp](https://github.com/yt-dlp/yt-dlp), which requires frequent updates as video sites change their layouts. A nightly build automatically publishes a new Docker image whenever a new yt-dlp version is available, so keep your container up to date — [watchtower](https://github.com/nicholas-fedor/watchtower) works well for this.
 
 ## 🔧 Troubleshooting and submitting issues
 
-Before asking a question or submitting an issue for MeTube, please remember that MeTube is only a UI for [yt-dlp](https://github.com/yt-dlp/yt-dlp). Any issues you might be experiencing with authentication to video websites, postprocessing, permissions, other `YTDL_OPTIONS` configurations which seem not to work, or anything else that concerns the workings of the underlying yt-dlp library, need not be opened on the MeTube project. In order to debug and troubleshoot them, it's advised to try using the yt-dlp binary directly first, bypassing the UI, and once that is working, importing the options that worked for you into `YTDL_OPTIONS`.
-
-In order to test with the yt-dlp command directly, you can either download it and run it locally, or for a better simulation of its actual conditions, you can run it within the MeTube container itself. Assuming your MeTube container is called `metube`, run the following on your Docker host to get a shell inside the container:
+MeTube is only a UI for [yt-dlp](https://github.com/yt-dlp/yt-dlp). Issues with authentication, postprocessing, permissions, or `YTDL_OPTIONS` should be debugged with yt-dlp directly first — once working, import those options into MeTube. To test inside the container:
 
 ```bash
 docker exec -ti metube sh
 cd /downloads
 ```
 
-Once there, you can use the yt-dlp command freely.
-
 ## 💡 Submitting feature requests
 
-MeTube development relies on code contributions by the community. The program as it currently stands fits my own use cases, and is therefore feature-complete as far as I'm concerned. If your use cases are different and require additional features, please feel free to submit PRs that implement those features. It's advisable to create an issue first to discuss the planned implementation, because in an effort to reduce bloat, some PRs may not be accepted. However, note that opening a feature request when you don't intend to implement the feature will rarely result in the request being fulfilled.
+MeTube development relies on community contributions. If you need additional features, please submit a PR. Create an issue first to discuss the implementation — some PRs may not be accepted to reduce bloat. Feature requests without an accompanying PR are unlikely to be fulfilled.
 
 ## 🛠️ Building and running locally
 

app/main.py

@@ -60,6 +60,7 @@ class Config:
         'YTDL_OPTIONS_PRESETS': '{}',
         'YTDL_OPTIONS_PRESETS_FILE': '',
         'ALLOW_YTDL_OPTIONS_OVERRIDES': 'false',
+        'CORS_ALLOWED_ORIGINS': '',
         'ROBOTS_TXT': '',
         'HOST': '0.0.0.0',
         'PORT': '8081',
@@ -223,7 +224,8 @@ class ObjectSerializer(json.JSONEncoder):
 
 serializer = ObjectSerializer()
 app = web.Application()
-sio = socketio.AsyncServer(cors_allowed_origins='*')
+_cors_origins = [o.strip() for o in config.CORS_ALLOWED_ORIGINS.split(',') if o.strip()] if config.CORS_ALLOWED_ORIGINS else []
+sio = socketio.AsyncServer(cors_allowed_origins=_cors_origins if _cors_origins else [])
 sio.attach(app, socketio_path=config.URL_PREFIX + 'socket.io')
 routes = web.RouteTableDef()
 VALID_SUBTITLE_FORMATS = {'srt', 'txt', 'vtt', 'ttml', 'sbv', 'scc', 'dfxp'}
@@ -253,6 +255,23 @@ def _parse_ytdl_options_overrides(value, *, enabled: bool) -> dict:
     return value
 
 
+def _parse_ytdl_options_presets(post: dict) -> list[str]:
+    """Normalize preset names from add/subscribe body; supports list or legacy singular string."""
+    raw = post.get('ytdl_options_presets')
+    if raw is None:
+        raw = post.get('ytdl_options_preset')
+    if raw is None:
+        return []
+    if isinstance(raw, list):
+        return [str(x).strip() for x in raw if str(x).strip()]
+    if isinstance(raw, str):
+        s = raw.strip()
+        return [s] if s else []
+    raise web.HTTPBadRequest(
+        reason='ytdl_options_presets must be a JSON array of strings (or legacy ytdl_options_preset string)',
+    )
+
+
 def _migrate_legacy_request(post: dict) -> dict:
     """
     BACKWARD COMPATIBILITY: Translate old API request schema into the new one.
@@ -441,7 +460,6 @@ def parse_download_options(post: dict) -> dict:
     chapter_template = post.get('chapter_template')
     subtitle_language = post.get('subtitle_language')
     subtitle_mode = post.get('subtitle_mode')
-    ytdl_options_preset = post.get('ytdl_options_preset')
     ytdl_options_overrides = post.get('ytdl_options_overrides')
 
     if custom_name_prefix is None:
@@ -460,15 +478,13 @@ def parse_download_options(post: dict) -> dict:
         subtitle_language = 'en'
     if subtitle_mode is None:
         subtitle_mode = 'prefer_manual'
-    if ytdl_options_preset is None:
-        ytdl_options_preset = ''
     download_type = str(download_type).strip().lower()
     codec = str(codec or 'auto').strip().lower()
     format = str(format or '').strip().lower()
     quality = str(quality).strip().lower()
     subtitle_language = str(subtitle_language).strip()
     subtitle_mode = str(subtitle_mode).strip()
-    ytdl_options_preset = str(ytdl_options_preset).strip()
+    ytdl_options_presets = _parse_ytdl_options_presets(post)
     ytdl_options_overrides = _parse_ytdl_options_overrides(
         ytdl_options_overrides,
         enabled=config.ALLOW_YTDL_OPTIONS_OVERRIDES,
@@ -480,8 +496,9 @@ def parse_download_options(post: dict) -> dict:
         raise web.HTTPBadRequest(reason='subtitle_language must match pattern [A-Za-z0-9-] and be at most 35 characters')
     if subtitle_mode not in VALID_SUBTITLE_MODES:
         raise web.HTTPBadRequest(reason=f'subtitle_mode must be one of {sorted(VALID_SUBTITLE_MODES)}')
-    if ytdl_options_preset and ytdl_options_preset not in config.YTDL_OPTIONS_PRESETS:
-        raise web.HTTPBadRequest(reason='ytdl_options_preset must match a configured preset')
+    for preset_name in ytdl_options_presets:
+        if preset_name not in config.YTDL_OPTIONS_PRESETS:
+            raise web.HTTPBadRequest(reason='ytdl_options_presets must only contain configured preset names')
 
     if download_type not in VALID_DOWNLOAD_TYPES:
         raise web.HTTPBadRequest(reason=f'download_type must be one of {sorted(VALID_DOWNLOAD_TYPES)}')
@@ -534,7 +551,7 @@ def parse_download_options(post: dict) -> dict:
         'chapter_template': chapter_template,
         'subtitle_language': subtitle_language,
         'subtitle_mode': subtitle_mode,
-        'ytdl_options_preset': ytdl_options_preset,
+        'ytdl_options_presets': ytdl_options_presets,
         'ytdl_options_overrides': ytdl_options_overrides,
     }
 
@@ -570,7 +587,7 @@ async def add(request):
         o['chapter_template'],
         o['subtitle_language'],
         o['subtitle_mode'],
-        o['ytdl_options_preset'],
+        o['ytdl_options_presets'],
         o['ytdl_options_overrides'],
     )
     return web.Response(text=serializer.encode(status))
@@ -621,7 +638,7 @@ async def subscribe(request):
         chapter_template=o['chapter_template'],
         subtitle_language=o['subtitle_language'],
         subtitle_mode=o['subtitle_mode'],
-        ytdl_options_preset=o['ytdl_options_preset'],
+        ytdl_options_presets=o['ytdl_options_presets'],
         ytdl_options_overrides=o['ytdl_options_overrides'],
     )
     return web.Response(text=serializer.encode(result))
@@ -897,8 +914,9 @@ app.router.add_route('OPTIONS', config.URL_PREFIX + 'upload-cookies', add_cors)
 app.router.add_route('OPTIONS', config.URL_PREFIX + 'delete-cookies', add_cors)
 
 async def on_prepare(request, response):
-    if 'Origin' in request.headers:
-        response.headers['Access-Control-Allow-Origin'] = request.headers['Origin']
+    origin = request.headers.get('Origin')
+    if origin and _cors_origins and ('*' in _cors_origins or origin in _cors_origins):
+        response.headers['Access-Control-Allow-Origin'] = origin
         response.headers['Access-Control-Allow-Headers'] = 'Content-Type'
 
 app.on_response_prepare.append(on_prepare)

app/subscriptions.py

@@ -145,7 +145,7 @@ class SubscriptionInfo:
     chapter_template: str = ""
     subtitle_language: str = "en"
     subtitle_mode: str = "prefer_manual"
-    ytdl_options_preset: str = ""
+    ytdl_options_presets: list[str] = field(default_factory=list)
     ytdl_options_overrides: dict[str, Any] = field(default_factory=dict)
     last_checked: Optional[float] = None
     seen_ids: list[str] = field(default_factory=list)
@@ -192,7 +192,7 @@ def _subscription_to_record(sub: SubscriptionInfo) -> dict[str, Any]:
         "chapter_template": sub.chapter_template,
         "subtitle_language": sub.subtitle_language,
         "subtitle_mode": sub.subtitle_mode,
-        "ytdl_options_preset": sub.ytdl_options_preset,
+        "ytdl_options_presets": list(sub.ytdl_options_presets),
         "ytdl_options_overrides": sub.ytdl_options_overrides,
         "last_checked": sub.last_checked,
         "seen_ids": list(sub.seen_ids),
@@ -200,18 +200,50 @@ def _subscription_to_record(sub: SubscriptionInfo) -> dict[str, Any]:
     }
 
 
+def _normalize_subscription_record(rec: dict[str, Any]) -> dict[str, Any]:
+    """Migrate legacy ytdl_options_preset (str) to ytdl_options_presets (list)."""
+    out = dict(rec)
+    if "ytdl_options_presets" not in out:
+        old = out.pop("ytdl_options_preset", None)
+        if old is None:
+            out["ytdl_options_presets"] = []
+        elif isinstance(old, list):
+            out["ytdl_options_presets"] = [str(x).strip() for x in old if str(x).strip()]
+        elif isinstance(old, str):
+            out["ytdl_options_presets"] = [old.strip()] if old.strip() else []
+        else:
+            out["ytdl_options_presets"] = []
+    else:
+        out.pop("ytdl_options_preset", None)
+    return out
+
+
 def _subscription_from_record(record: Any) -> Optional[SubscriptionInfo]:
     field_names = {f.name for f in fields(SubscriptionInfo)}
     if isinstance(record, SubscriptionInfo):
         return record
     if isinstance(record, dict):
         try:
-            return SubscriptionInfo(**{k: v for k, v in record.items() if k in field_names})
+            normalized = _normalize_subscription_record(dict(record))
+            return SubscriptionInfo(**{k: v for k, v in normalized.items() if k in field_names})
         except TypeError:
             return None
     return None
 
 
+def _coerce_bool(value: Any) -> bool:
+    """Accept JSON booleans and common string forms used by API clients."""
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, str):
+        lowered = value.strip().lower()
+        if lowered in {"true", "1", "on"}:
+            return True
+        if lowered in {"false", "0", "off"}:
+            return False
+    raise ValueError("enabled must be a boolean")
+
+
 class SubscriptionNotifier:
     """Hook for Socket.IO / UI updates."""
 
@@ -315,17 +347,20 @@ class SubscriptionManager:
         chapter_template: str,
         subtitle_language: str,
         subtitle_mode: str,
-        ytdl_options_preset: str = "",
+        ytdl_options_presets: Optional[list[str]] = None,
         ytdl_options_overrides: Optional[dict[str, Any]] = None,
     ) -> tuple[list[str], list[str]]:
         queued_ids: list[str] = []
         queue_errors: list[str] = []
+        presets = list(ytdl_options_presets or [])
         for ent in entries:
             eid = _entry_id(ent)
             vurl = _entry_video_url(ent)
             if not eid or not vurl:
                 continue
             queue_entry = dict(ent)
+            if "id" not in queue_entry:
+                queue_entry["id"] = eid
             queue_entry["_type"] = "video"
             queue_entry["webpage_url"] = vurl
             result = await self.dqueue.add_entry(
@@ -342,7 +377,7 @@ class SubscriptionManager:
                 chapter_template or None,
                 subtitle_language,
                 subtitle_mode,
-                ytdl_options_preset,
+                presets,
                 ytdl_options_overrides,
             )
             if isinstance(result, dict) and result.get("status") == "error":
@@ -411,7 +446,7 @@ class SubscriptionManager:
         chapter_template: str,
         subtitle_language: str,
         subtitle_mode: str,
-        ytdl_options_preset: str = "",
+        ytdl_options_presets: Optional[list[str]] = None,
         ytdl_options_overrides: Optional[dict[str, Any]] = None,
     ) -> dict:
         url = self._normalize_url(url)
@@ -448,6 +483,8 @@ class SubscriptionManager:
             seen_entries = [ent for ent in entries if _is_media_entry(ent)]
             all_ids: list[str] = []
             for ent in seen_entries:
+                if ent.get("live_status") == "is_upcoming":
+                    continue  # Don't mark scheduled streams as seen; queue them when they go live
                 eid = _entry_id(ent)
                 if eid:
                     all_ids.append(eid)
@@ -470,7 +507,7 @@ class SubscriptionManager:
                 chapter_template=chapter_template or "",
                 subtitle_language=subtitle_language,
                 subtitle_mode=subtitle_mode,
-                ytdl_options_preset=ytdl_options_preset,
+                ytdl_options_presets=list(ytdl_options_presets or []),
                 ytdl_options_overrides=dict(ytdl_options_overrides or {}),
                 last_checked=time.time(),
                 seen_ids=list(dict.fromkeys(all_ids)),
@@ -526,7 +563,7 @@ class SubscriptionManager:
             old_enabled = sub.enabled
 
             if "enabled" in changes:
-                sub.enabled = bool(changes["enabled"])
+                sub.enabled = _coerce_bool(changes["enabled"])
             if "check_interval_minutes" in changes:
                 sub.check_interval_minutes = max(1, int(changes["check_interval_minutes"]))
             if "name" in changes and changes["name"]:
@@ -620,14 +657,16 @@ class SubscriptionManager:
             dl_chapter = cur.chapter_template
             dl_sublang = cur.subtitle_language
             dl_submode = cur.subtitle_mode
-            dl_ytdl_preset = cur.ytdl_options_preset
+            dl_ytdl_presets = list(cur.ytdl_options_presets)
             dl_ytdl_overrides = dict(cur.ytdl_options_overrides)
 
         new_entries: list[dict] = []
         new_ids: list[str] = []
         for ent in entries:
             eid = _entry_id(ent)
-            if not eid or eid in seen:
+            if not eid:
+                continue
+            if eid in seen and ent.get("live_status") != "is_live":
                 continue
             new_entries.append(ent)
             new_ids.append(eid)
@@ -646,7 +685,7 @@ class SubscriptionManager:
             chapter_template=dl_chapter or "",
             subtitle_language=dl_sublang,
             subtitle_mode=dl_submode,
-            ytdl_options_preset=dl_ytdl_preset,
+            ytdl_options_presets=dl_ytdl_presets,
             ytdl_options_overrides=dl_ytdl_overrides,
         )
         log.info(

app/tests/test_api.py

@@ -37,7 +37,7 @@ def _valid_video_add_body(**kwargs):
         "codec": "auto",
         "format": "any",
         "quality": "best",
-        "ytdl_options_preset": "",
+        "ytdl_options_presets": [],
         "ytdl_options_overrides": "",
     }
     base.update(kwargs)
@@ -67,7 +67,7 @@ async def test_add_passes_preset_and_overrides(mock_dqueue, monkeypatch):
     monkeypatch.setattr(main.config, "ALLOW_YTDL_OPTIONS_OVERRIDES", True)
     req = _json_request(
         _valid_video_add_body(
-            ytdl_options_preset="Preset A",
+            ytdl_options_presets=["Preset A"],
             ytdl_options_overrides='{"writesubtitles": true}',
         )
     )
@@ -75,10 +75,23 @@ async def test_add_passes_preset_and_overrides(mock_dqueue, monkeypatch):
     assert resp.status == 200
     call = mock_dqueue.add.await_args
     assert call is not None
-    assert call.args[13] == "Preset A"
+    assert call.args[13] == ["Preset A"]
     assert call.args[14] == {"writesubtitles": True}
 
 
+@pytest.mark.asyncio
+async def test_add_legacy_string_preset_normalized(mock_dqueue, monkeypatch):
+    monkeypatch.setattr(main.config, "YTDL_OPTIONS_PRESETS", {"Legacy": {}})
+    body = _valid_video_add_body()
+    del body["ytdl_options_presets"]
+    body["ytdl_options_preset"] = "Legacy"
+    req = _json_request(body)
+    resp = await main.add(req)
+    assert resp.status == 200
+    call = mock_dqueue.add.await_args
+    assert call.args[13] == ["Legacy"]
+
+
 @pytest.mark.asyncio
 async def test_add_missing_url_returns_400(mock_dqueue):
     req = _json_request({"download_type": "video", "quality": "best", "format": "any"})
@@ -171,7 +184,7 @@ async def test_add_allows_any_ytdl_options_override_key_when_enabled(mock_dqueue
 
 @pytest.mark.asyncio
 async def test_add_unknown_ytdl_preset(mock_dqueue):
-    req = _json_request(_valid_video_add_body(ytdl_options_preset="Missing"))
+    req = _json_request(_valid_video_add_body(ytdl_options_presets=["Missing"]))
     with pytest.raises(web.HTTPBadRequest):
         await main.add(req)
 

app/tests/test_download_queue.py

@@ -182,7 +182,10 @@ async def test_add_entry_queues_single_video_without_reextracting(dq_env):
 async def test_add_merges_global_preset_and_override_options(dq_env):
     notifier = AsyncMock()
     dq_env.YTDL_OPTIONS = {"writesubtitles": False, "cookiefile": "/tmp/global.txt"}
-    dq_env.YTDL_OPTIONS_PRESETS = {"Preset A": {"writesubtitles": True, "proxy": "http://preset"}}
+    dq_env.YTDL_OPTIONS_PRESETS = {
+        "Preset A": {"writesubtitles": True, "proxy": "http://preset-a"},
+        "Preset B": {"writesubtitles": False, "ratelimit": 1000},
+    }
 
     def fake_extract(self, url):
         return {
@@ -205,13 +208,14 @@ async def test_add_merges_global_preset_and_override_options(dq_env):
             "",
             0,
             auto_start=False,
-            ytdl_options_preset="Preset A",
+            ytdl_options_presets=["Preset A", "Preset B"],
             ytdl_options_overrides={"proxy": "http://override", "embed_thumbnail": True},
         )
 
     assert result["status"] == "ok"
     queued = dq.pending.get("https://example.com/preset")
     assert queued.ytdl_opts["cookiefile"] == "/tmp/global.txt"
-    assert queued.ytdl_opts["writesubtitles"] is True
+    assert queued.ytdl_opts["writesubtitles"] is False
+    assert queued.ytdl_opts["ratelimit"] == 1000
     assert queued.ytdl_opts["proxy"] == "http://override"
     assert queued.ytdl_opts["embed_thumbnail"] is True

app/tests/test_main_helpers.py

@@ -140,9 +140,44 @@ class ParseDownloadOptionsTests(unittest.TestCase):
         finally:
             main.config.YTDL_OPTIONS_PRESETS = previous
             main.config.ALLOW_YTDL_OPTIONS_OVERRIDES = previous_allow
-        self.assertEqual(parsed["ytdl_options_preset"], "With subtitles")
+        self.assertEqual(parsed["ytdl_options_presets"], ["With subtitles"])
         self.assertEqual(parsed["ytdl_options_overrides"], {"writesubtitles": True})
 
+    def test_accepts_multiple_presets_in_order(self):
+        previous = dict(main.config.YTDL_OPTIONS_PRESETS)
+        main.config.YTDL_OPTIONS_PRESETS = {
+            "A": {"writesubtitles": True},
+            "B": {"writesubtitles": False},
+        }
+        try:
+            parsed = main.parse_download_options({
+                "url": "https://example.com/v",
+                "download_type": "video",
+                "codec": "auto",
+                "format": "any",
+                "quality": "best",
+                "ytdl_options_presets": ["A", "B"],
+            })
+        finally:
+            main.config.YTDL_OPTIONS_PRESETS = previous
+        self.assertEqual(parsed["ytdl_options_presets"], ["A", "B"])
+
+    def test_legacy_singular_preset_string_normalized_to_list(self):
+        previous = dict(main.config.YTDL_OPTIONS_PRESETS)
+        main.config.YTDL_OPTIONS_PRESETS = {"Solo": {}}
+        try:
+            parsed = main.parse_download_options({
+                "url": "https://example.com/v",
+                "download_type": "video",
+                "codec": "auto",
+                "format": "any",
+                "quality": "best",
+                "ytdl_options_preset": "Solo",
+            })
+        finally:
+            main.config.YTDL_OPTIONS_PRESETS = previous
+        self.assertEqual(parsed["ytdl_options_presets"], ["Solo"])
+
     def test_rejects_unknown_preset(self):
         with self.assertRaises(main.web.HTTPBadRequest):
             main.parse_download_options({
@@ -151,9 +186,25 @@ class ParseDownloadOptionsTests(unittest.TestCase):
                 "codec": "auto",
                 "format": "any",
                 "quality": "best",
-                "ytdl_options_preset": "Missing preset",
+                "ytdl_options_presets": ["Missing preset"],
             })
 
+    def test_rejects_unknown_preset_in_list(self):
+        previous = dict(main.config.YTDL_OPTIONS_PRESETS)
+        main.config.YTDL_OPTIONS_PRESETS = {"Known": {}}
+        try:
+            with self.assertRaises(main.web.HTTPBadRequest):
+                main.parse_download_options({
+                    "url": "https://example.com/v",
+                    "download_type": "video",
+                    "codec": "auto",
+                    "format": "any",
+                    "quality": "best",
+                    "ytdl_options_presets": ["Known", "Nope"],
+                })
+        finally:
+            main.config.YTDL_OPTIONS_PRESETS = previous
+
 
 if __name__ == "__main__":
     unittest.main()

app/tests/test_subscriptions.py

@@ -386,6 +386,73 @@ class SubscriptionPersistenceTests(unittest.IsolatedAsyncioTestCase):
             self.assertEqual(sub.seen_ids[:2], ["v2", "v1"])
             self.assertEqual([entry["webpage_url"] for entry, _, _ in queue.entries], ["https://example.com/v2"])
 
+    async def test_update_subscription_parses_string_false_enabled(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            queue = _Queue()
+            mgr = SubscriptionManager(_Config(tmp), queue, _Notifier())
+
+            with patch(
+                "subscriptions.extract_flat_playlist",
+                return_value=(
+                    {"_type": "channel", "title": "Channel"},
+                    [{"id": "v1", "title": "One", "webpage_url": "https://example.com/v1"}],
+                ),
+            ):
+                result = await mgr.add_subscription(
+                    "https://example.com/channel",
+                    check_interval_minutes=60,
+                    download_type="video",
+                    codec="auto",
+                    format="any",
+                    quality="best",
+                    folder="",
+                    custom_name_prefix="",
+                    auto_start=True,
+                    playlist_item_limit=0,
+                    split_by_chapters=False,
+                    chapter_template="",
+                    subtitle_language="en",
+                    subtitle_mode="prefer_manual",
+                )
+
+            sub_id = result["subscription"]["id"]
+            update = await mgr.update_subscription(sub_id, {"enabled": "false"})
+            self.assertEqual(update["status"], "ok")
+            self.assertFalse(mgr.list_all()[0].enabled)
+
+    async def test_update_subscription_rejects_invalid_enabled_value(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            queue = _Queue()
+            mgr = SubscriptionManager(_Config(tmp), queue, _Notifier())
+
+            with patch(
+                "subscriptions.extract_flat_playlist",
+                return_value=(
+                    {"_type": "channel", "title": "Channel"},
+                    [{"id": "v1", "title": "One", "webpage_url": "https://example.com/v1"}],
+                ),
+            ):
+                result = await mgr.add_subscription(
+                    "https://example.com/channel",
+                    check_interval_minutes=60,
+                    download_type="video",
+                    codec="auto",
+                    format="any",
+                    quality="best",
+                    folder="",
+                    custom_name_prefix="",
+                    auto_start=True,
+                    playlist_item_limit=0,
+                    split_by_chapters=False,
+                    chapter_template="",
+                    subtitle_language="en",
+                    subtitle_mode="prefer_manual",
+                )
+
+            sub_id = result["subscription"]["id"]
+            with self.assertRaises(ValueError):
+                await mgr.update_subscription(sub_id, {"enabled": "maybe"})
+
 class ExtractFlatPlaylistTests(unittest.TestCase):
     def test_descends_one_level_when_root_entries_are_nested_collections(self):
         responses = iter(

app/ytdl.py

@@ -19,6 +19,7 @@ from yt_dlp.utils import STR_FORMAT_RE_TMPL, STR_FORMAT_TYPES
 from dl_formats import get_format, get_opts, AUDIO_FORMATS
 from datetime import datetime
 from state_store import AtomicJsonStore, from_json_compatible, read_legacy_shelf, to_json_compatible
+from subscriptions import _entry_id
 
 log = logging.getLogger('ytdl')
 
@@ -188,7 +189,7 @@ class DownloadInfo:
         chapter_template,
         subtitle_language="en",
         subtitle_mode="prefer_manual",
-        ytdl_options_preset="",
+        ytdl_options_presets=None,
         ytdl_options_overrides=None,
     ):
         self.id = id if len(custom_name_prefix) == 0 else f'{custom_name_prefix}.{id}'
@@ -212,7 +213,7 @@ class DownloadInfo:
         self.chapter_template = chapter_template
         self.subtitle_language = subtitle_language
         self.subtitle_mode = subtitle_mode
-        self.ytdl_options_preset = ytdl_options_preset
+        self.ytdl_options_presets = list(ytdl_options_presets or [])
         self.ytdl_options_overrides = dict(ytdl_options_overrides or {})
         self.subtitle_files = []
 
@@ -266,8 +267,14 @@ class DownloadInfo:
             self.subtitle_language = "en"
         if not hasattr(self, "subtitle_mode"):
             self.subtitle_mode = "prefer_manual"
-        if not hasattr(self, "ytdl_options_preset"):
-            self.ytdl_options_preset = ""
+        legacy_preset = self.__dict__.pop("ytdl_options_preset", None)
+        if "ytdl_options_presets" not in self.__dict__:
+            if isinstance(legacy_preset, str) and legacy_preset.strip():
+                self.ytdl_options_presets = [legacy_preset.strip()]
+            elif isinstance(legacy_preset, list):
+                self.ytdl_options_presets = [str(x).strip() for x in legacy_preset if str(x).strip()]
+            else:
+                self.ytdl_options_presets = []
         if not hasattr(self, "ytdl_options_overrides"):
             self.ytdl_options_overrides = {}
         if not hasattr(self, "entry"):
@@ -293,7 +300,7 @@ _PERSISTED_DOWNLOAD_FIELDS = (
     "chapter_template",
     "subtitle_language",
     "subtitle_mode",
-    "ytdl_options_preset",
+    "ytdl_options_presets",
     "ytdl_options_overrides",
     "status",
     "timestamp",
@@ -838,8 +845,7 @@ class DownloadQueue:
             sanitized = {k: _sanitize_path_component(v) for k, v in entry.items()}
             output = _resolve_outtmpl_fields(output, sanitized, ('channel',))
         ytdl_options = dict(self.config.YTDL_OPTIONS)
-        preset_name = getattr(dl, 'ytdl_options_preset', '')
-        if preset_name:
+        for preset_name in getattr(dl, 'ytdl_options_presets', None) or []:
             ytdl_options.update(self.config.YTDL_OPTIONS_PRESETS.get(preset_name, {}))
         ytdl_options.update(getattr(dl, 'ytdl_options_overrides', {}) or {})
         playlist_item_limit = getattr(dl, 'playlist_item_limit', 0)
@@ -869,7 +875,7 @@ class DownloadQueue:
         chapter_template,
         subtitle_language,
         subtitle_mode,
-        ytdl_options_preset,
+        ytdl_options_presets,
         ytdl_options_overrides,
         already,
         _add_gen=None,
@@ -903,7 +909,7 @@ class DownloadQueue:
                 chapter_template,
                 subtitle_language,
                 subtitle_mode,
-                ytdl_options_preset,
+                ytdl_options_presets,
                 ytdl_options_overrides,
                 already,
                 _add_gen,
@@ -925,6 +931,8 @@ class DownloadQueue:
                 if _add_gen is not None and self._add_generation != _add_gen:
                     log.info(f'Playlist add canceled after processing {len(already)} entries')
                     return {'status': 'ok', 'msg': f'Canceled - added {len(already)} items before cancel'}
+                if "id" not in etr:
+                    etr["id"] = _entry_id(etr)
                 etr["_type"] = "video"
                 etr[etype] = entry.get("id") or entry.get("channel_id") or entry.get("channel")
                 etr[f"{etype}_index"] = '{{0:0{0:d}d}}'.format(index_digits).format(index)
@@ -952,7 +960,7 @@ class DownloadQueue:
                         chapter_template,
                         subtitle_language,
                         subtitle_mode,
-                        ytdl_options_preset,
+                        ytdl_options_presets,
                         ytdl_options_overrides,
                         already,
                         _add_gen,
@@ -985,7 +993,7 @@ class DownloadQueue:
                     chapter_template=chapter_template,
                     subtitle_language=subtitle_language,
                     subtitle_mode=subtitle_mode,
-                    ytdl_options_preset=ytdl_options_preset,
+                    ytdl_options_presets=ytdl_options_presets,
                     ytdl_options_overrides=ytdl_options_overrides,
                 )
                 await self.__add_download(dl, auto_start)
@@ -1007,15 +1015,17 @@ class DownloadQueue:
         chapter_template=None,
         subtitle_language="en",
         subtitle_mode="prefer_manual",
-        ytdl_options_preset="",
+        ytdl_options_presets=None,
         ytdl_options_overrides=None,
         already=None,
         _add_gen=None,
     ):
+        if ytdl_options_presets is None:
+            ytdl_options_presets = []
         log.info(
             f'adding {url}: {download_type=} {codec=} {format=} {quality=} {already=} {folder=} {custom_name_prefix=} '
             f'{playlist_item_limit=} {auto_start=} {split_by_chapters=} {chapter_template=} '
-            f'{subtitle_language=} {subtitle_mode=} {ytdl_options_preset=}'
+            f'{subtitle_language=} {subtitle_mode=} {ytdl_options_presets=}'
         )
         if already is None:
             _add_gen = self._add_generation
@@ -1044,7 +1054,7 @@ class DownloadQueue:
             chapter_template,
             subtitle_language,
             subtitle_mode,
-            ytdl_options_preset,
+            ytdl_options_presets,
             ytdl_options_overrides,
             already,
             _add_gen,
@@ -1065,9 +1075,11 @@ class DownloadQueue:
         chapter_template=None,
         subtitle_language="en",
         subtitle_mode="prefer_manual",
-        ytdl_options_preset="",
+        ytdl_options_presets=None,
         ytdl_options_overrides=None,
     ):
+        if ytdl_options_presets is None:
+            ytdl_options_presets = []
         normalized_entry = copy.deepcopy(entry) if isinstance(entry, dict) else entry
         already = set()
         return await self.__add_entry(
@@ -1084,7 +1096,7 @@ class DownloadQueue:
             chapter_template,
             subtitle_language,
             subtitle_mode,
-            ytdl_options_preset,
+            ytdl_options_presets,
             ytdl_options_overrides,
             already,
             None,

ui/package.json

@@ -23,21 +23,21 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^21.2.7",
-    "@angular/common": "^21.2.7",
-    "@angular/compiler": "^21.2.7",
-    "@angular/core": "^21.2.7",
-    "@angular/forms": "^21.2.7",
-    "@angular/platform-browser": "^21.2.7",
-    "@angular/platform-browser-dynamic": "^21.2.7",
-    "@angular/service-worker": "^21.2.7",
+    "@angular/animations": "^21.2.8",
+    "@angular/common": "^21.2.8",
+    "@angular/compiler": "^21.2.8",
+    "@angular/core": "^21.2.8",
+    "@angular/forms": "^21.2.8",
+    "@angular/platform-browser": "^21.2.8",
+    "@angular/platform-browser-dynamic": "^21.2.8",
+    "@angular/service-worker": "^21.2.8",
     "@fortawesome/angular-fontawesome": "~4.0.0",
     "@fortawesome/fontawesome-svg-core": "^7.2.0",
     "@fortawesome/free-brands-svg-icons": "^7.2.0",
     "@fortawesome/free-regular-svg-icons": "^7.2.0",
     "@fortawesome/free-solid-svg-icons": "^7.2.0",
     "@ng-bootstrap/ng-bootstrap": "^20.0.0",
-    "@ng-select/ng-select": "^21.7.0",
+    "@ng-select/ng-select": "^21.8.0",
     "@popperjs/core": "^2.11.8",
     "bootstrap": "^5.3.8",
     "ngx-cookie-service": "^21.3.1",
@@ -48,16 +48,16 @@
   },
   "devDependencies": {
     "@angular-eslint/builder": "21.1.0",
-    "@angular/build": "^21.2.6",
-    "@angular/cli": "^21.2.6",
-    "@angular/compiler-cli": "^21.2.7",
-    "@angular/localize": "^21.2.7",
+    "@angular/build": "^21.2.7",
+    "@angular/cli": "^21.2.7",
+    "@angular/compiler-cli": "^21.2.8",
+    "@angular/localize": "^21.2.8",
     "@eslint/js": "^9.39.4",
     "angular-eslint": "21.1.0",
     "eslint": "^9.39.4",
     "jsdom": "^27.4.0",
     "typescript": "~5.9.3",
     "typescript-eslint": "8.47.0",
-    "vitest": "^4.1.2"
+    "vitest": "^4.1.4"
   }
 }

ui/pnpm-workspace.yaml

@@ -0,0 +1,6 @@
+allowBuilds:
+  '@parcel/watcher': true
+  core-js: true
+  esbuild: true
+  lmdb: true
+  msgpackr-extract: true

ui/src/app/app.html

@@ -482,18 +482,18 @@
               <div class="row g-3">
                 <div class="col-12" [class.col-md-6]="allowYtdlOptionsOverrides()">
                   <div class="input-group">
-                    <span class="input-group-text">Option Preset</span>
-                    <select class="form-select"
-                      name="ytdlOptionsPreset"
-                      [(ngModel)]="ytdlOptionsPreset"
-                      (change)="ytdlOptionsPresetChanged()"
+                    <span class="input-group-text">Option Presets</span>
+                    <ng-select
+                      class="flex-grow-1"
+                      name="ytdlOptionsPresets"
+                      [items]="ytdlOptionPresetNames"
+                      [multiple]="true"
+                      [closeOnSelect]="false"
+                      placeholder="Default"
+                      [(ngModel)]="ytdlOptionsPresets"
+                      (ngModelChange)="ytdlOptionsPresetsChanged()"
                       [disabled]="addInProgress || subscribeInProgress || downloads.loading"
-                      ngbTooltip="Choose a named yt-dlp option preset configured on the server">
-                      <option value="">Default</option>
-                      @for (preset of ytdlOptionPresetNames; track preset) {
-                      <option [value]="preset">{{ preset }}</option>
-                      }
-                    </select>
+                      ngbTooltip="Choose one or more yt-dlp option presets configured on the server (applied in order)" />
                   </div>
                 </div>
                 @if (allowYtdlOptionsOverrides()) {

ui/src/app/app.spec.ts

@@ -140,10 +140,10 @@ describe('App', () => {
     const root = fixture.nativeElement as HTMLElement;
     expect(root.querySelector('input[name="ytdlOptionsOverrides"]')).toBeNull();
 
-    const presetWrapper = root.querySelector('select[name="ytdlOptionsPreset"]')?.closest('.col-12');
+    const presetWrapper = root.querySelector('ng-select[name="ytdlOptionsPresets"]')?.closest('.col-12');
     expect(presetWrapper?.classList.contains('col-md-6')).toBe(false);
 
-    const presetRow = root.querySelector('select[name="ytdlOptionsPreset"]')?.closest('.row');
+    const presetRow = root.querySelector('ng-select[name="ytdlOptionsPresets"]')?.closest('.row');
     expect(presetRow?.querySelector('input[name="checkIntervalMinutes"]')).toBeNull();
   });
 
@@ -157,10 +157,10 @@ describe('App', () => {
     const root = fixture.nativeElement as HTMLElement;
     expect(root.querySelector('input[name="ytdlOptionsOverrides"]')).not.toBeNull();
 
-    const presetWrapper = root.querySelector('select[name="ytdlOptionsPreset"]')?.closest('.col-12');
+    const presetWrapper = root.querySelector('ng-select[name="ytdlOptionsPresets"]')?.closest('.col-12');
     expect(presetWrapper?.classList.contains('col-md-6')).toBe(true);
 
-    const presetRow = root.querySelector('select[name="ytdlOptionsPreset"]')?.closest('.row');
+    const presetRow = root.querySelector('ng-select[name="ytdlOptionsPresets"]')?.closest('.row');
     expect(presetRow?.querySelector('input[name="checkIntervalMinutes"]')).toBeNull();
     expect(presetRow?.querySelector('input[name="ytdlOptionsOverrides"]')).not.toBeNull();
   });

ui/src/app/app.ts

@@ -83,7 +83,7 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
   chapterTemplate: string;
   subtitleLanguage: string;
   subtitleMode: string;
-  ytdlOptionsPreset: string;
+  ytdlOptionsPresets: string[] = [];
   ytdlOptionsOverrides: string;
   ytdlOptionPresetNames: string[] = [];
   addInProgress = false;
@@ -234,7 +234,7 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
     this.chapterTemplate = this.cookieService.get('metube_chapter_template') || '';
     this.subtitleLanguage = this.cookieService.get('metube_subtitle_language') || 'en';
     this.subtitleMode = this.cookieService.get('metube_subtitle_mode') || 'prefer_manual';
-    this.ytdlOptionsPreset = this.cookieService.get('metube_ytdl_options_preset') || '';
+    this.ytdlOptionsPresets = this.loadYtdlOptionsPresetsFromCookie();
     this.ytdlOptionsOverrides = this.cookieService.get('metube_ytdl_options_overrides') || '';
     const allowedDownloadTypes = new Set(this.downloadTypes.map(t => t.id));
     const allowedVideoCodecs = new Set(this.videoCodecs.map(c => c.id));
@@ -431,15 +431,35 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
         this.ytdlOptionPresetNames = Array.isArray(data?.presets)
           ? data.presets.filter((preset): preset is string => typeof preset === 'string')
           : [];
-        if (this.ytdlOptionsPreset && !this.ytdlOptionPresetNames.includes(this.ytdlOptionsPreset)) {
-          this.ytdlOptionsPreset = '';
-          this.ytdlOptionsPresetChanged();
+        if (this.ytdlOptionsPresets?.length) {
+          const valid = new Set(this.ytdlOptionPresetNames);
+          const filtered = this.ytdlOptionsPresets.filter((p) => valid.has(p));
+          if (filtered.length !== this.ytdlOptionsPresets.length) {
+            this.ytdlOptionsPresets = filtered;
+            this.ytdlOptionsPresetsChanged();
+          }
         }
         this.cdr.markForCheck();
       },
     });
   }
 
+  private loadYtdlOptionsPresetsFromCookie(): string[] {
+    const jsonCookie = this.cookieService.get('metube_ytdl_options_presets');
+    if (jsonCookie) {
+      try {
+        const parsed = JSON.parse(jsonCookie) as unknown;
+        if (Array.isArray(parsed)) {
+          return parsed.filter((p): p is string => typeof p === 'string' && p.length > 0);
+        }
+      } catch {
+        // fall through to legacy cookie
+      }
+    }
+    const legacy = this.cookieService.get('metube_ytdl_options_preset')?.trim();
+    return legacy ? [legacy] : [];
+  }
+
   private validateYtdlOptionsOverrides(value: string): boolean {
     if (!this.allowYtdlOptionsOverrides()) {
       return true;
@@ -744,8 +764,12 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
     this.saveSelection(this.downloadType);
   }
 
-  ytdlOptionsPresetChanged() {
-    this.cookieService.set('metube_ytdl_options_preset', this.ytdlOptionsPreset, { expires: this.settingsCookieExpiryDays });
+  ytdlOptionsPresetsChanged() {
+    this.cookieService.set(
+      'metube_ytdl_options_presets',
+      JSON.stringify(this.ytdlOptionsPresets ?? []),
+      { expires: this.settingsCookieExpiryDays },
+    );
   }
 
   ytdlOptionsOverridesChanged() {
@@ -952,7 +976,7 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
       chapterTemplate: overrides.chapterTemplate ?? this.chapterTemplate,
       subtitleLanguage: overrides.subtitleLanguage ?? this.subtitleLanguage,
       subtitleMode: overrides.subtitleMode ?? this.subtitleMode,
-      ytdlOptionsPreset: overrides.ytdlOptionsPreset ?? this.ytdlOptionsPreset,
+      ytdlOptionsPresets: overrides.ytdlOptionsPresets ?? [...this.ytdlOptionsPresets],
       ytdlOptionsOverrides: allowYtdlOptionsOverrides
         ? (overrides.ytdlOptionsOverrides ?? this.ytdlOptionsOverrides)
         : '',
@@ -1025,7 +1049,9 @@ export class App implements AfterViewInit, OnInit, OnDestroy {
       chapterTemplate: download.chapter_template,
       subtitleLanguage: download.subtitle_language,
       subtitleMode: download.subtitle_mode,
-      ytdlOptionsPreset: download.ytdl_options_preset || '',
+      ytdlOptionsPresets: download.ytdl_options_presets?.length
+        ? [...download.ytdl_options_presets]
+        : [],
       ytdlOptionsOverrides: download.ytdl_options_overrides ? JSON.stringify(download.ytdl_options_overrides) : '',
     });
     this.downloads.delById('done', [key]).subscribe();

ui/src/app/interfaces/download.ts

@@ -14,7 +14,7 @@ export interface Download {
   chapter_template?: string;
   subtitle_language?: string;
   subtitle_mode?: string;
-  ytdl_options_preset?: string;
+  ytdl_options_presets?: string[];
   ytdl_options_overrides?: Record<string, unknown>;
   status: string;
   msg: string;

ui/src/app/services/downloads.service.spec.ts

@@ -39,7 +39,7 @@ function basePayload(): AddDownloadPayload {
     chapterTemplate: '',
     subtitleLanguage: 'en',
     subtitleMode: 'prefer_manual',
-    ytdlOptionsPreset: '',
+    ytdlOptionsPresets: [],
     ytdlOptionsOverrides: '',
   };
 }
@@ -81,7 +81,7 @@ describe('DownloadsService', () => {
         chapter_template: '',
         subtitle_language: 'en',
         subtitle_mode: 'prefer_manual',
-        ytdl_options_preset: '',
+        ytdl_options_presets: [],
         ytdl_options_overrides: '',
       }),
     );

ui/src/app/services/downloads.service.ts

@@ -20,7 +20,7 @@ export interface AddDownloadPayload {
   chapterTemplate: string;
   subtitleLanguage: string;
   subtitleMode: string;
-  ytdlOptionsPreset: string;
+  ytdlOptionsPresets: string[];
   ytdlOptionsOverrides: string;
 }
 @Injectable({
@@ -143,7 +143,7 @@ export class DownloadsService {
       chapter_template: payload.chapterTemplate,
       subtitle_language: payload.subtitleLanguage,
       subtitle_mode: payload.subtitleMode,
-      ytdl_options_preset: payload.ytdlOptionsPreset,
+      ytdl_options_presets: payload.ytdlOptionsPresets,
       ytdl_options_overrides: payload.ytdlOptionsOverrides,
     }).pipe(
       catchError(this.handleHTTPError)

ui/src/app/services/subscriptions.service.ts

@@ -94,7 +94,7 @@ export class SubscriptionsService {
         chapter_template: payload.chapterTemplate,
         subtitle_language: payload.subtitleLanguage,
         subtitle_mode: payload.subtitleMode,
-        ytdl_options_preset: payload.ytdlOptionsPreset,
+        ytdl_options_presets: payload.ytdlOptionsPresets,
         ytdl_options_overrides: payload.ytdlOptionsOverrides,
         check_interval_minutes: payload.checkIntervalMinutes,
       })

uv.lock

@@ -602,11 +602,11 @@ wheels = [
 
 [[package]]
 name = "platformdirs"
-version = "4.9.4"
+version = "4.9.6"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/19/56/8d4c30c8a1d07013911a8fdbd8f89440ef9f08d07a1b50ab8ca8be5a20f9/platformdirs-4.9.4.tar.gz", hash = "sha256:1ec356301b7dc906d83f371c8f487070e99d3ccf9e501686456394622a01a934", size = 28737, upload-time = "2026-03-05T18:34:13.271Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9f/4a/0883b8e3802965322523f0b200ecf33d31f10991d0401162f4b23c698b42/platformdirs-4.9.6.tar.gz", hash = "sha256:3bfa75b0ad0db84096ae777218481852c0ebc6c727b3168c1b9e0118e458cf0a", size = 29400, upload-time = "2026-04-09T00:04:10.812Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/63/d7/97f7e3a6abb67d8080dd406fd4df842c2be0efaf712d1c899c32a075027c/platformdirs-4.9.4-py3-none-any.whl", hash = "sha256:68a9a4619a666ea6439f2ff250c12a853cd1cbd5158d258bd824a7df6be2f868", size = 21216, upload-time = "2026-03-05T18:34:12.172Z" },
+    { url = "https://files.pythonhosted.org/packages/75/a6/a0a304dc33b49145b21f4808d763822111e67d1c3a32b524a1baf947b6e1/platformdirs-4.9.6-py3-none-any.whl", hash = "sha256:e61adb1d5e5cb3441b4b7710bea7e4c12250ca49439228cc1021c00dcfac0917", size = 21348, upload-time = "2026-04-09T00:04:09.463Z" },
 ]
 
 [[package]]
@@ -755,7 +755,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "9.0.2"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -764,9 +764,9 @@ dependencies = [
     { name = "pluggy" },
     { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d1/db/7ef3487e0fb0049ddb5ce41d3a49c235bf9ad299b6a25d5780a89f19230f/pytest-9.0.2.tar.gz", hash = "sha256:75186651a92bd89611d1d9fc20f0b4345fd827c41ccd5c299a868a05d70edf11", size = 1568901, upload-time = "2025-12-06T21:30:51.014Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7d/0d/549bd94f1a0a402dc8cf64563a117c0f3765662e2e668477624baeec44d5/pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c", size = 1572165, upload-time = "2026-04-07T17:16:18.027Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/3b/ab/b3226f0bd7cdcf710fbede2b3548584366da3b19b5021e74f5bde2a8fa3f/pytest-9.0.2-py3-none-any.whl", hash = "sha256:711ffd45bf766d5264d487b917733b453d917afd2b0ad65223959f59089f875b", size = 374801, upload-time = "2025-12-06T21:30:49.154Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
 ]
 
 [[package]]