# Configuration

Settings are stored in `$XDG_CONFIG_HOME/SubMiner/config.jsonc` (or `~/.config/SubMiner/config.jsonc` when `XDG_CONFIG_HOME` is unset). For backward compatibility, SubMiner also reads existing configs from lowercase `subminer` directories.

## Configuration File

See [config.example.jsonc](/config.example.jsonc) for a comprehensive example configuration file with all available options, default values, and detailed comments. Only include the options you want to customize in your config file.

Generate a fresh default config from the centralized config registry:

```bash
SubMiner.AppImage --generate-config
SubMiner.AppImage --generate-config --config-path /tmp/subminer.jsonc
SubMiner.AppImage --generate-config --backup-overwrite
```

- `--generate-config` writes a default JSONC config template.
- If the target file exists, SubMiner prompts to create a timestamped backup and overwrite.
- In non-interactive shells, use `--backup-overwrite` to explicitly back up and overwrite.
- `pnpm run generate:config-example` regenerates both repository `config.example.jsonc` and docs-served `/config.example.jsonc` from the same centralized defaults.
- `make generate-config` builds and runs the same default-config generator via local Electron.

Invalid config values are handled with warn-and-fallback behavior: SubMiner logs the bad key/value and continues with the default for that option.

### Configuration Options Overview

The configuration file includes several main sections:

- [**AnkiConnect**](#ankiconnect) - Automatic Anki card creation with media
- [**Auto-Start Overlay**](#auto-start-overlay) - Automatically show overlay on MPV connection
- [**Visible Overlay Subtitle Binding**](#visible-overlay-subtitle-binding) - Link visible overlay toggles to MPV subtitle visibility
- [**Auto Subtitle Sync**](#auto-subtitle-sync) - Sync current subtitle with `alass`/`ffsubsync`
- [**Invisible Overlay**](#invisible-overlay) - Startup visibility behavior for the invisible mining layer
- [**Jimaku**](#jimaku) - Jimaku API configuration and defaults
- [**Keybindings**](#keybindings) - MPV command shortcuts
- [**Runtime Option Palette**](#runtime-option-palette) - Live, session-only option toggles
- [**Secondary Subtitles**](#secondary-subtitles) - Dual subtitle track support
- [**Shortcuts Configuration**](#shortcuts-configuration) - Overlay keyboard shortcuts
- [**Subtitle Position**](#subtitle-position) - Overlay vertical positioning
- [**Subtitle Style**](#subtitle-style) - Appearance customization
- [**Texthooker**](#texthooker) - Control browser opening behavior
- [**WebSocket Server**](#websocket-server) - Built-in subtitle broadcasting server
- [**YouTube Subtitle Generation**](#youtube-subtitle-generation) - Launcher defaults for yt-dlp + local whisper fallback

### AnkiConnect

Enable automatic Anki card creation and updates with media generation:

```json
{
  "ankiConnect": {
    "enabled": true,
    "url": "http://127.0.0.1:8765",
    "pollingRate": 3000,
    "deck": "Learning::Japanese",
    "fields": {
      "audio": "ExpressionAudio",
      "image": "Picture",
      "sentence": "Sentence",
      "miscInfo": "MiscInfo",
      "translation": "SelectionText"
    },
    "ai": {
      "enabled": false,
      "alwaysUseAiTranslation": false,
      "apiKey": "",
      "model": "openai/gpt-4o-mini",
      "baseUrl": "https://openrouter.ai/api",
      "targetLanguage": "English",
      "systemPrompt": "You are a translation engine. Return only the translated text with no explanations."
    },
    "media": {
      "generateAudio": true,
      "generateImage": true,
      "imageType": "static",
      "imageFormat": "jpg",
      "imageQuality": 92,
      "imageMaxWidth": 1280,
      "imageMaxHeight": 720,
      "animatedFps": 10,
      "animatedMaxWidth": 640,
      "animatedMaxHeight": 360,
      "animatedCrf": 35,
      "audioPadding": 0.5,
      "fallbackDuration": 3,
      "maxMediaDuration": 30
    },
    "behavior": {
      "autoUpdateNewCards": true,
      "overwriteAudio": true,
      "overwriteImage": true
    },
    "metadata": {
      "pattern": "[SubMiner] %f (%t)"
    },
    "isLapis": {
      "enabled": true,
      "sentenceCardModel": "Japanese sentences",
      "sentenceCardSentenceField": "Sentence",
      "sentenceCardAudioField": "SentenceAudio"
    },
    "isKiku": {
      "enabled": false,
      "fieldGrouping": "disabled",
      "deleteDuplicateInAuto": true
    }
  }
}
```

This example is intentionally compact. The option table below documents available `ankiConnect` settings and behavior.

**Requirements:** [AnkiConnect](https://github.com/FooSoft/anki-connect) plugin must be installed and running in Anki. ffmpeg must be installed for media generation.

| Option               | Values                                  | Description                                                                                                                               |
| -------------------- | --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| `enabled`            | `true`, `false`                         | Enable AnkiConnect integration (default: `false`)                                                                                         |
| `url`                | string (URL)                            | AnkiConnect API URL (default: `http://127.0.0.1:8765`)                                                                                    |
| `pollingRate`        | number (ms)                             | How often to check for new cards (default: `3000`)                                                                                        |
| `deck`               | string                                  | Anki deck to monitor for new cards                                                                                                        |
| `ankiConnect.nPlusOne.decks`     | array of strings                        | Decks used for N+1 known-word cache lookups. When omitted/empty, falls back to `ankiConnect.deck`.                                                   |
| `fields.audio`                  | string                                  | Card field for audio files (default: `ExpressionAudio`)                                                                                   |
| `fields.image`                  | string                                  | Card field for images (default: `Picture`)                                                                                                |
| `fields.sentence`               | string                                  | Card field for sentences (default: `Sentence`)                                                                                            |
| `fields.miscInfo`               | string                                  | Card field for metadata (default: `"MiscInfo"`, set to `null` to disable)                                                                 |
| `fields.translation`            | string                                  | Card field for sentence-card translation/back text (default: `SelectionText`)                                                            |
| `ai.enabled`            | `true`, `false`                         | Use AI translation for sentence cards. Also auto-attempted when secondary subtitle is missing.                                           |
| `ai.alwaysUseAiTranslation` | `true`, `false`                     | When `true`, always use AI translation even if secondary subtitles exist. When `false`, AI is used only when no secondary subtitle exists. |
| `ai.apiKey`             | string                                  | API key for your OpenAI-compatible endpoint (required for translation).                                                                    |
| `ai.model`              | string                                  | Model id for your OpenAI-compatible endpoint (default: `openai/gpt-4o-mini`).                                                             |
| `ai.baseUrl`            | string (URL)                            | OpenAI-compatible API base URL; accepts with or without `/v1`.                                                                            |
| `ai.targetLanguage`     | string                                  | Target language name used in translation prompt (default: `English`).                                                                     |
| `ai.systemPrompt`       | string                                  | System prompt used for translation (default returns translation text only).                                                               |
| `media.generateAudio`           | `true`, `false`                         | Generate audio clips from video (default: `true`)                                                                                         |
| `media.generateImage`           | `true`, `false`                         | Generate image/animation screenshots (default: `true`)                                                                                    |
| `media.imageType`               | `"static"`, `"avif"`                    | Image type: static screenshot or animated AVIF (default: `"static"`)                                                                      |
| `media.imageFormat`             | `"jpg"`, `"png"`, `"webp"`              | Image format (default: `"jpg"`)                                                                                                           |
| `media.imageQuality`            | number (1-100)                          | Image quality for JPG/WebP; PNG ignores this (default: `92`)                                                                              |
| `media.imageMaxWidth`           | number (px)                             | Optional max width for static screenshots. Unset keeps source width.                                                                       |
| `media.imageMaxHeight`          | number (px)                             | Optional max height for static screenshots. Unset keeps source height.                                                                      |
| `media.animatedFps`             | number (1-60)                           | FPS for animated AVIF (default: `10`)                                                                                                     |
| `media.animatedMaxWidth`        | number (px)                             | Max width for animated AVIF (default: `640`)                                                                                              |
| `media.animatedMaxHeight`       | number (px)                             | Optional max height for animated AVIF. Unset keeps source aspect-constrained height.                                                       |
| `media.animatedCrf`             | number (0-63)                           | CRF quality for AVIF; lower = higher quality (default: `35`)                                                                              |
| `media.audioPadding`            | number (seconds)                        | Padding around audio clip timing (default: `0.5`)                                                                                         |
| `media.fallbackDuration`        | number (seconds)                        | Default duration if timing unavailable (default: `3.0`)                                                                                   |
| `media.maxMediaDuration`        | number (seconds)                        | Max duration for generated media from multi-line copy (default: `30`, `0` to disable)                                                     |
| `behavior.overwriteAudio`       | `true`, `false`                         | Replace existing audio on updates; when `false`, new audio is appended/prepended per `behavior.mediaInsertMode` (default: `true`)        |
| `behavior.overwriteImage`       | `true`, `false`                         | Replace existing images on updates; when `false`, new images are appended/prepended per `behavior.mediaInsertMode` (default: `true`)      |
| `behavior.mediaInsertMode`      | `"append"`, `"prepend"`                 | Where to insert new media when overwrite is off (default: `"append"`)                                                                     |
| `behavior.highlightWord`        | `true`, `false`                         | Highlight the word in sentence context (default: `true`)                                                                                  |
| `ankiConnect.nPlusOne.highlightEnabled` | `true`, `false`                   | Enable fast local highlighting for words already known in Anki (default: `false`)                                                       |
| `ankiConnect.nPlusOne.matchMode` | `"headword"`, `"surface"`      | Matching strategy for known-word highlighting (default: `"headword"`). `headword` uses token headwords; `surface` uses visible subtitle text. |
| `ankiConnect.nPlusOne.refreshMinutes`   | number                             | Minutes between known-word cache refreshes (default: `1440`)                                                                              |
| `ankiConnect.nPlusOne.decks`     | array of strings                        | Decks used by known-word cache refresh. Leave empty for compatibility with legacy `deck` scope.                                            |
| `behavior.notificationType`     | `"osd"`, `"system"`, `"both"`, `"none"` | Notification type on card update (default: `"osd"`)                                                                                       |
| `behavior.autoUpdateNewCards`   | `true`, `false`                         | Automatically update cards on creation (default: `true`)                                                                                  |
| `metadata.pattern`              | string                                  | Format pattern for metadata: `%f`=filename, `%F`=filename+ext, `%t`=time                                                                  |
| `isLapis`            | object                                  | Lapis/shared sentence-card config: `{ enabled, sentenceCardModel, sentenceCardSentenceField, sentenceCardAudioField }`                    |
| `isKiku`             | object                                  | Kiku-only config: `{ enabled, fieldGrouping, deleteDuplicateInAuto }` (shared sentence/audio/model settings are inherited from `isLapis`) |

**Kiku / Lapis Note Type Support:**

SubMiner supports the [Lapis](https://github.com/donkuri/lapis) and [Kiku](https://kiku.youyoumu.my.id/) note types. Both `isLapis.enabled` and `isKiku.enabled` can be true; Kiku takes precedence for grouping behavior, while sentence-card model/field settings come from `isLapis`.

When enabled, sentence cards automatically set `IsSentenceCard` to `"x"` and populate the `Expression` field. Audio cards set `IsAudioCard` to `"x"`.

Kiku extends Lapis with **field grouping** — when a duplicate card is detected (same Word/Expression), SubMiner merges the two cards' content into one using Kiku's `data-group-id` HTML structure, organizing each mining instance into separate pages within the note.

### N+1 Word Highlighting

When `ankiConnect.nPlusOne.highlightEnabled` is enabled, SubMiner builds a local cache of known words from Anki to highlight already learned tokens in subtitle rendering.

Known-word cache policy:

- Initial sync runs when the integration starts if the cache is missing or stale.
- `ankiConnect.nPlusOne.refreshMinutes` controls the minimum time between refreshes; between refreshes, cached words are reused without querying Anki.
- `ankiConnect.nPlusOne.decks` accepts one or more decks. If empty, it uses the legacy single `ankiConnect.deck` value as scope.
- Cache state is persisted to `known-words-cache.json` under the app `userData` directory.
- The cache is automatically invalidated when the configured scope changes (for example, when deck changes).
- Cache lookups are in-memory. By default, token headwords are matched against cached `Expression` / `Word` values; set `ankiConnect.nPlusOne.matchMode` to `"surface"` for raw subtitle text matching.
- `ankiConnect.behavior.nPlusOne*` legacy keys (`nPlusOneHighlightEnabled`, `nPlusOneRefreshMinutes`, `nPlusOneMatchMode`) are deprecated and only kept for backward compatibility.
- If AnkiConnect is unreachable, the cache remains in its previous state and an on-screen/system status message is shown.
- Known-word sync activity is logged at `INFO`/`DEBUG` level with the `anki` logger scope and includes scope, notes returned, and word counts.

To refresh roughly once per day, set:

```json
{
  "ankiConnect": {
    "nPlusOne": {
      "highlightEnabled": true,
      "refreshMinutes": 1440
    }
  }
}
```

<video controls playsinline preload="metadata" poster="/assets/kiku-integration-poster.jpg" style="width: 100%; max-width: 960px;">
  <source :src="'/assets/kiku-integration.webm'" type="video/webm" />
  Your browser does not support the video tag.
</video>

<a :href="'/assets/kiku-integration.webm'" target="_blank" rel="noreferrer">Open demo in a new tab</a>
| Mode       | Behavior                                                                                                                   |
| ---------- | -------------------------------------------------------------------------------------------------------------------------- |
| `auto`     | Automatically merges the new card's content into the original; duplicate deletion is controlled by `deleteDuplicateInAuto` |
| `manual`   | Shows an overlay popup to choose which card to keep and whether to delete the duplicate after merge                        |
| `disabled` | No field grouping; duplicate cards are left as-is                                                                          |

`deleteDuplicateInAuto` controls whether `auto` mode deletes the duplicate after merge (default: `true`). In `manual` mode, the popup asks each time whether to delete the duplicate.

**Image Quality Notes:**

- `imageQuality` affects JPG and WebP only; PNG is lossless and ignores this setting
- JPG quality is mapped to FFmpeg's scale (2-31, lower = better)
- WebP quality uses FFmpeg's native 0-100 scale

**Manual Card Update:**

When `behavior.autoUpdateNewCards` is set to `false`, new cards are detected but not automatically updated. Instead, you can manually update cards using keyboard shortcuts:

| Shortcut       | Action                                                                                                       |
| -------------- | ------------------------------------------------------------------------------------------------------------ |
| `Ctrl+C`       | Copy the current subtitle line to clipboard (preserves line breaks)                                          |
| `Ctrl+Shift+C` | Enter multi-copy mode. Press `1-9` to copy that many recent lines, or `Esc` to cancel. Timeout: 3 seconds    |
| `Ctrl+V`       | Update the last added Anki card using subtitles from clipboard                                               |
| `Ctrl+G`       | Trigger Kiku duplicate field grouping for the last added card (only when `behavior.autoUpdateNewCards` is `false`)    |
| `Ctrl+S`       | Create a sentence card from the current subtitle line                                                        |
| `Ctrl+Shift+S` | Enter multi-mine mode. Press `1-9` to create a sentence card from that many recent lines, or `Esc` to cancel |
| `Ctrl+Shift+V` | Cycle secondary subtitle display mode (hidden → visible → hover)                                             |
| `Ctrl+Shift+A` | Mark the last added Anki card as an audio card (sets IsAudioCard, SentenceAudio, Sentence, Picture)          |
| `Ctrl+Shift+O` | Open runtime options palette (session-only live toggles)                                                      |

To copy multiple lines (current + previous):

1. Press `Ctrl+Shift+C`
2. Press a number key (`1-9`) within 3 seconds
3. The specified number of most recent subtitle lines are copied
4. Press `Ctrl+V` to update the last added card with the copied lines

These shortcuts are only active when the overlay window is visible. They are automatically disabled when the overlay is hidden to avoid interfering with normal system clipboard operations.

### Auto-Start Overlay

Control whether the overlay automatically becomes visible when it connects to mpv:

```json
{
  "auto_start_overlay": false
}
```

| Option               | Values          | Description                                            |
| -------------------- | --------------- | ------------------------------------------------------ |
| `auto_start_overlay` | `true`, `false` | Auto-show overlay on mpv connection (default: `false`) |

The mpv plugin controls startup per layer via `auto_start_visible_overlay` and `auto_start_invisible_overlay` in `subminer.conf` (`platform-default` for invisible means hidden on Linux, visible on macOS/Windows).

### Visible Overlay Subtitle Binding

Control whether toggling the visible overlay also toggles MPV subtitle visibility:

```json
{
  "bind_visible_overlay_to_mpv_sub_visibility": true
}
```

| Option                                        | Values          | Description |
| --------------------------------------------- | --------------- | ----------- |
| `bind_visible_overlay_to_mpv_sub_visibility` | `true`, `false` | When `true` (default), visible overlay hides MPV primary/secondary subtitles and restores them when hidden. When `false`, visible overlay toggles do not change MPV subtitle visibility. |

### Auto Subtitle Sync

Sync the active subtitle track using `alass` (preferred) or `ffsubsync`:

```json
{
  "subsync": {
    "defaultMode": "auto",
    "alass_path": "",
    "ffsubsync_path": "",
    "ffmpeg_path": ""
  }
}
```

| Option           | Values               | Description |
| ---------------- | -------------------- | ----------- |
| `defaultMode`    | `"auto"`, `"manual"` | `auto`: try `alass` against secondary subtitle, then fallback to `ffsubsync`; `manual`: open overlay picker |
| `alass_path`     | string path          | Path to `alass` executable. Empty or `null` falls back to `/usr/bin/alass`. |
| `ffsubsync_path` | string path          | Path to `ffsubsync` executable. Empty or `null` falls back to `/usr/bin/ffsubsync`. |
| `ffmpeg_path`    | string path          | Path to `ffmpeg` (used for internal subtitle extraction). Empty or `null` falls back to `/usr/bin/ffmpeg`. |

Default trigger is `Ctrl+Alt+S` via `shortcuts.triggerSubsync`.
Customize it there, or set it to `null` to disable.

### Invisible Overlay

SubMiner includes a second subtitle mining layer that can be visually invisible while still interactive for Yomitan lookups.

- `invisibleOverlay.startupVisibility` values:
1. `"platform-default"`: hidden on Wayland, visible on Windows/macOS/other sessions.
2. `"visible"`: always shown on startup.
3. `"hidden"`: always hidden on startup.

Invisible subtitle positioning can be adjusted directly in the invisible layer:

- `Ctrl/Cmd+Shift+P` toggles position edit mode.
- Use arrow keys to move the invisible subtitle text.
- Press `Enter` or `Ctrl/Cmd+S` to save, or `Esc` to cancel.
- This edit-mode shortcut is fixed (not currently configurable in `shortcuts`/`keybindings`).

### Jimaku

Configure Jimaku API access and defaults:

```json
{
  "jimaku": {
    "apiKey": "YOUR_API_KEY",
    "apiKeyCommand": "cat ~/.jimaku_key",
    "apiBaseUrl": "https://jimaku.cc",
    "languagePreference": "ja",
    "maxEntryResults": 10
  }
}
```

Jimaku is rate limited; if you hit a limit, SubMiner will surface the retry delay from the API response.

Set `openBrowser` to `false` to only print the URL without opening a browser.

### Keybindings

Add a `keybindings` array to configure keyboard shortcuts that send commands to mpv:

See `config.example.jsonc` for detailed configuration options and more examples.

**Default keybindings:**

| Key               | Command                    | Description                           |
| ----------------- | -------------------------- | ------------------------------------- |
| `Space`           | `["cycle", "pause"]`       | Toggle pause                          |
| `ArrowRight`      | `["seek", 5]`              | Seek forward 5 seconds                |
| `ArrowLeft`       | `["seek", -5]`             | Seek backward 5 seconds               |
| `ArrowUp`         | `["seek", 60]`             | Seek forward 60 seconds               |
| `ArrowDown`       | `["seek", -60]`            | Seek backward 60 seconds              |
| `Shift+KeyH`      | `["sub-seek", -1]`         | Jump to previous subtitle             |
| `Shift+KeyL`      | `["sub-seek", 1]`          | Jump to next subtitle                 |
| `Ctrl+Shift+KeyH` | `["__replay-subtitle"]`    | Replay current subtitle, pause at end |
| `Ctrl+Shift+KeyL` | `["__play-next-subtitle"]` | Play next subtitle, pause at end      |
| `KeyQ`            | `["quit"]`                 | Quit mpv                              |
| `Ctrl+KeyW`       | `["quit"]`                 | Quit mpv                              |

**Custom keybindings example:**

```json
{
  "keybindings": [
    { "key": "ArrowRight", "command": ["seek", 5] },
    { "key": "ArrowLeft", "command": ["seek", -5] },
    { "key": "Shift+ArrowRight", "command": ["seek", 30] },
    { "key": "KeyR", "command": ["script-binding", "immersive/auto-replay"] },
    { "key": "KeyA", "command": ["script-message", "ankiconnect-add-note"] }
  ]
}
```

**Key format:** Use `KeyboardEvent.code` values (`Space`, `ArrowRight`, `KeyR`, etc.) with optional modifiers (`Ctrl+`, `Alt+`, `Shift+`, `Meta+`).

**Disable a default binding:** Set command to `null`:

```json
{ "key": "Space", "command": null }
```

**Special commands:** Commands prefixed with `__` are handled internally by the overlay rather than sent to mpv. `__replay-subtitle` replays the current subtitle and pauses at its end. `__play-next-subtitle` seeks to the next subtitle, plays it, and pauses at its end. `__runtime-options-open` opens the runtime options palette. `__runtime-option-cycle:<id>[:next|prev]` cycles a runtime option value.

**Supported commands:** Any valid mpv JSON IPC command array (`["cycle", "pause"]`, `["seek", 5]`, `["script-binding", "..."]`, etc.)

**See `config.example.jsonc`** for more keybinding examples and configuration options.

### Runtime Option Palette

Use the runtime options palette to toggle settings live while SubMiner is running. These changes are session-only and reset on restart.

Current runtime options:

- `ankiConnect.behavior.autoUpdateNewCards` (`On` / `Off`)
- `ankiConnect.isKiku.fieldGrouping` (`auto` / `manual` / `disabled`)

Default shortcut: `Ctrl+Shift+O`

Palette controls:

- `Arrow Up/Down`: select option
- `Arrow Left/Right`: change selected value
- `Enter`: apply selected value
- `Esc`: close

### Secondary Subtitles

Display a second subtitle track (e.g., English alongside Japanese) in the overlay:

See `config.example.jsonc` for detailed configuration options.

```json
{
  "secondarySub": {
    "secondarySubLanguages": ["eng", "en"],
    "autoLoadSecondarySub": true,
    "defaultMode": "hover"
  }
}
```

| Option                  | Values                             | Description                                            |
| ----------------------- | ---------------------------------- | ------------------------------------------------------ |
| `secondarySubLanguages` | string[]                           | Language codes to auto-load (e.g., `["eng", "en"]`)    |
| `autoLoadSecondarySub`  | `true`, `false`                    | Auto-detect and load matching secondary subtitle track |
| `defaultMode`           | `"hidden"`, `"visible"`, `"hover"` | Initial display mode (default: `"hover"`)              |

**Display modes:**

- **hidden** — Secondary subtitles not shown
- **visible** — Always visible at top of overlay
- **hover** — Only visible when hovering over the subtitle area (default)

**See `config.example.jsonc`** for additional secondary subtitle configuration options.

### Shortcuts Configuration

Customize or disable the overlay keyboard shortcuts:

See `config.example.jsonc` for detailed configuration options.

```json
{
  "shortcuts": {
    "toggleVisibleOverlayGlobal": "Alt+Shift+O",
    "toggleInvisibleOverlayGlobal": "Alt+Shift+I",
    "copySubtitle": "CommandOrControl+C",
    "copySubtitleMultiple": "CommandOrControl+Shift+C",
    "updateLastCardFromClipboard": "CommandOrControl+V",
    "triggerFieldGrouping": "CommandOrControl+G",
    "triggerSubsync": "Ctrl+Alt+S",
    "mineSentence": "CommandOrControl+S",
    "mineSentenceMultiple": "CommandOrControl+Shift+S",
    "markAudioCard": "CommandOrControl+Shift+A",
    "openRuntimeOptions": "CommandOrControl+Shift+O",
    "openJimaku": "Ctrl+Shift+J",
    "multiCopyTimeoutMs": 3000
  }
}
```

| Option                        | Values           | Description                                                                                                                          |
| ----------------------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `toggleVisibleOverlayGlobal`  | string \| `null` | Global accelerator for toggling visible subtitle overlay (default: `"Alt+Shift+O"`)                                               |
| `toggleInvisibleOverlayGlobal` | string \| `null` | Global accelerator for toggling invisible interactive overlay (default: `"Alt+Shift+I"`)                                         |
| `copySubtitle`                | string \| `null` | Accelerator for copying current subtitle (default: `"CommandOrControl+C"`)                                                           |
| `copySubtitleMultiple`        | string \| `null` | Accelerator for multi-copy mode (default: `"CommandOrControl+Shift+C"`)                                                              |
| `updateLastCardFromClipboard` | string \| `null` | Accelerator for updating card from clipboard (default: `"CommandOrControl+V"`)                                                       |
| `triggerFieldGrouping`        | string \| `null` | Accelerator for Kiku field grouping on last card (default: `"CommandOrControl+G"`; only active when `behavior.autoUpdateNewCards` is `false`) |
| `triggerSubsync`              | string \| `null` | Accelerator for running Subsync (default: `"Ctrl+Alt+S"`)                                                                           |
| `mineSentence`                | string \| `null` | Accelerator for creating sentence card from current subtitle (default: `"CommandOrControl+S"`)                                       |
| `mineSentenceMultiple`        | string \| `null` | Accelerator for multi-mine sentence card mode (default: `"CommandOrControl+Shift+S"`)                                                |
| `multiCopyTimeoutMs`          | number           | Timeout in ms for multi-copy/mine digit input (default: `3000`)                                                                      |
| `toggleSecondarySub`          | string \| `null` | Accelerator for cycling secondary subtitle mode (default: `"CommandOrControl+Shift+V"`)                                              |
| `markAudioCard`               | string \| `null` | Accelerator for marking last card as audio card (default: `"CommandOrControl+Shift+A"`)                                              |
| `openRuntimeOptions`          | string \| `null` | Opens runtime options palette for live session-only toggles (default: `"CommandOrControl+Shift+O"`)                                  |
| `openJimaku`                  | string \| `null` | Opens the Jimaku search modal (default: `"Ctrl+Shift+J"`)                                                                              |

**See `config.example.jsonc`** for the complete list of shortcut configuration options.

Set any shortcut to `null` to disable it.

### Subtitle Position

Set the initial vertical subtitle position (measured from the bottom of the screen):

```json
{
  "subtitlePosition": {
    "yPercent": 10
  }
}
```

| Option     | Values          | Description                                                        |
| ---------- | --------------- | ------------------------------------------------------------------ |
| `yPercent` | number (0 - 100) | Distance from the bottom as a percent of screen height (default: `10`) |

### Subtitle Style

Customize the appearance of primary and secondary subtitles:

See `config.example.jsonc` for detailed configuration options.

```json
{
  "subtitleStyle": {
    "fontFamily": "Noto Sans CJK JP Regular, Noto Sans CJK JP, Arial Unicode MS, Arial, sans-serif",
    "fontSize": 35,
    "fontColor": "#cad3f5",
    "fontWeight": "normal",
    "fontStyle": "normal",
    "backgroundColor": "rgba(54, 58, 79, 0.5)",
    "secondary": {
      "fontSize": 24,
      "fontColor": "#ffffff",
      "backgroundColor": "transparent"
    }
  }
}
```

| Option            | Values      | Description                                                                   |
| ----------------- | ----------- | ----------------------------------------------------------------------------- |
| `fontFamily`      | string      | CSS font-family value (default: `"Noto Sans CJK JP Regular, ..."`)            |
| `fontSize`        | number (px) | Font size in pixels (default: `35`)                                           |
| `fontColor`       | string      | Any CSS color value (default: `"#cad3f5"`)                                    |
| `fontWeight`      | string      | CSS font-weight, e.g. `"bold"`, `"normal"`, `"600"` (default: `"normal"`)     |
| `fontStyle`       | string      | `"normal"` or `"italic"` (default: `"normal"`)                                |
| `backgroundColor` | string      | Any CSS color, including `"transparent"` (default: `"rgba(54, 58, 79, 0.5)"`) |
| `secondary`       | object      | Override any of the above for secondary subtitles (optional)                  |

Secondary subtitle defaults: `fontSize: 24`, `fontColor: "#ffffff"`, `backgroundColor: "transparent"`. Any property not set in `secondary` falls back to the CSS defaults.

**See `config.example.jsonc`** for the complete list of subtitle style configuration options.

### Texthooker

Control whether the browser opens automatically when texthooker starts:

See `config.example.jsonc` for detailed configuration options.

```json
{
  "texthooker": {
    "openBrowser": true
  }
}
```

### WebSocket Server

The overlay includes a built-in WebSocket server that broadcasts subtitle text to connected clients (such as texthooker-ui) for external processing.

By default, the server uses "auto" mode: it starts automatically unless [mpv_websocket](https://github.com/kuroahna/mpv_websocket) is detected at `~/.config/mpv/mpv_websocket`. If you have mpv_websocket installed, the built-in server is skipped to avoid conflicts.

See `config.example.jsonc` for detailed configuration options.

```json
{
  "websocket": {
    "enabled": "auto",
    "port": 6677
  }
}
```

| Option    | Values                    | Description                                              |
| --------- | ------------------------- | -------------------------------------------------------- |
| `enabled` | `true`, `false`, `"auto"` | `"auto"` (default) disables if mpv_websocket is detected |
| `port`    | number                    | WebSocket server port (default: 6677)                    |

### YouTube Subtitle Generation

Set defaults used by the `subminer` launcher for YouTube subtitle extraction/transcription:

```json
{
  "youtubeSubgen": {
    "mode": "automatic",
    "whisperBin": "/path/to/whisper-cli",
    "whisperModel": "/path/to/ggml-model.bin",
    "primarySubLanguages": ["ja", "jpn"]
  }
}
```

| Option         | Values                                  | Description |
| -------------- | --------------------------------------- | ----------- |
| `mode`         | `"automatic"`, `"preprocess"`, `"off"` | `automatic`: play immediately and load generated subtitles in background; `preprocess`: generate before playback; `off`: disable launcher generation. |
| `whisperBin`   | string path                             | Path to `whisper.cpp` CLI binary used as fallback transcription engine. |
| `whisperModel` | string path                             | Path to whisper model used by fallback transcription. |
| `primarySubLanguages` | string[]                          | Primary subtitle language priority for YouTube subtitle generation (default `["ja", "jpn"]`). |

YouTube language targets are derived from subtitle config:
- primary track: `youtubeSubgen.primarySubLanguages` (falls back to `["ja","jpn"]`)
- secondary track: `secondarySub.secondarySubLanguages` (falls back to English when empty)

Precedence for launcher defaults is: CLI flag > environment variable > `config.jsonc` > built-in default.
