* chore(backlog): add mining workflow milestone and tasks
* refactor: split character dictionary runtime modules
* refactor: split shared type entrypoints
* refactor: use bun serve for stats server
* feat: add repo-local subminer workflow plugin
* fix: add stats server node fallback
* refactor: split immersion tracker query modules
* chore: update backlog task records
* refactor: migrate shared type imports
* refactor: compose startup and setup window wiring
* Add backlog tasks and launcher time helper tests
- Track follow-up cleanup work in Backlog.md
- Replace Date.now usage with shared nowMs helper
- Add launcher args/parser and core regression tests
* test: increase launcher test timeout for CI stability
* fix: address CodeRabbit review feedback
* refactor(main): extract remaining inline runtime logic from main
* chore(backlog): update task notes and changelog fragment
* refactor: split main boot phases
* test: stabilize bun coverage reporting
* Switch plausible endpoint and harden coverage lane parsing
- update docs-site tracking to use the Plausible capture endpoint
- tighten coverage lane argument and LCOV parsing checks
- make script entrypoint use CommonJS main guard
* Restrict docs analytics and build coverage input
- limit Plausible init to docs.subminer.moe
- build Yomitan before src coverage lane
* fix(ci): normalize Windows shortcut paths for cross-platform tests
* Fix verification and immersion-tracker grouping
- isolate verifier artifacts and lease handling
- switch weekly/monthly tracker cutoffs to calendar boundaries
- tighten boot lifecycle and zip writer tests
* fix: resolve CI type failures in boot and immersion query tests
* fix: remove strict spread usage in Date mocks
* fix: use explicit super args for MockDate constructors
* Factor out mock date helper in tracker tests
- reuse a shared `withMockDate` helper for date-sensitive query tests
- make monthly rollup assertions key off `videoId` instead of row order
* fix: use variadic array type for MockDate constructor args
TS2367: fixed-length tuple made args.length === 0 unreachable.
* refactor: remove unused createMainBootRuntimes/Handlers aggregate functions
These functions were never called by production code — main.ts imports
the individual composeBoot* re-exports directly.
* refactor: remove boot re-export alias layer
main.ts now imports directly from the runtime/composers and runtime/domains
modules, eliminating the intermediate boot/ indirection.
* refactor: consolidate 3 near-identical setup window factories
Extract shared createSetupWindowHandler with a config parameter.
Public API unchanged.
* refactor: parameterize duplicated getAffected*Ids query helpers
Four structurally identical functions collapsed into two parameterized
helpers while preserving the existing public API.
* refactor: inline identity composers (stats-startup, overlay-window)
composeStatsStartupRuntime was a no-op that returned its input.
composeOverlayWindowHandlers was a 1-line delegation.
Both removed in favor of direct usage.
* chore: remove unused token/queue file path constants from main.ts
* fix: replace any types in boot services with proper signatures
* refactor: deduplicate ensureDir into shared/fs-utils
5 copies of mkdir-p-if-not-exists consolidated into one shared module
with ensureDir (directory path) and ensureDirForFile (file path) variants.
* fix: tighten type safety in boot services
- Add AppLifecycleShape and OverlayModalInputStateShape constraints
so TAppLifecycleApp and TOverlayModalInputState generics are bounded
- Remove unsafe `as { handleModalInputStateChange? }` cast — now
directly callable via the constraint
- Use `satisfies AppLifecycleShape` for structural validation on the
appLifecycleApp object literal
- Document Electron App.on incompatibility with simple signatures
* refactor: inline subtitle-prefetch-runtime-composer
The composer was a pure pass-through that destructured an object and
reassembled it with the same fields. Inlined at the call site.
* chore: consolidate duplicate import paths in main.ts
* test: extract mpv composer test fixture factory to reduce duplication
* test: add behavioral assertions to composer tests
Upgrade 8 composer test files from shape-only typeof checks to behavioral
assertions that invoke returned handlers and verify injected dependencies are
actually called, following the mpv-runtime-composer pattern.
* refactor: normalize import extensions in query modules
* refactor: consolidate toDbMs into query-shared.ts
* refactor: remove Node.js fallback from stats-server, use Bun only
* Fix monthly rollup test expectations
- Preserve multi-arg Date construction in mock helper
- Align rollup assertions with the correct videoId
* fix: address PR 36 CodeRabbit follow-ups
* fix: harden coverage lane cleanup
* fix(stats): fallback to node server when Bun.serve unavailable
* fix(ci): restore coverage lane compatibility
* chore(backlog): close TASK-242
* fix: address latest CodeRabbit review round
* fix: guard disabled immersion retention windows
* fix: migrate discord rpc wrapper
* fix(ci): add changelog fragment for PR 36
* fix: stabilize macOS visible overlay toggle
* fix: pin installed mpv plugin to current binary
* fix: strip inline subtitle markup from sidebar cues
* fix(renderer): restore subtitle sidebar mpv passthrough
* feat(discord): add configurable presence style presets
Replace the hardcoded "Mining and crafting (Anki cards)" meme message
with a preset system. New `discordPresence.presenceStyle` option
supports four presets: "default" (clean bilingual), "meme" (the OG
Minecraft joke), "japanese" (fully JP), and "minimal". The default
preset shows "Sentence Mining" with 日本語学習中 as the small image
tooltip. Existing users can set presenceStyle to "meme" to keep the
old behavior.
* fix: finalize v0.10.0 release prep
* docs: add subtitle sidebar guide and release note
* chore(backlog): mark docs task done
* fix: lazily resolve youtube playback socket path
* chore(release): build v0.10.0 changelog
* Revert "chore(release): build v0.10.0 changelog"
This reverts commit 9741c0f020.
SubMiner
Turn mpv into a sentence-mining workstation.
Look up words with Yomitan, export to Anki in one key, track your immersion — all without leaving mpv.
How It Works
SubMiner runs as an invisible Electron overlay on top of mpv. Subtitles render as an interactive layer. Move your cursor over any word and trigger a Yomitan lookup. Press one key to snapshot the sentence, audio, and screenshot into Anki via AnkiConnect.
Features
Dictionary Lookups
Yomitan runs inside the overlay. Trigger a lookup on any word for full dictionary popups — definitions, pitch accent, frequency data — without ever leaving mpv.
Instant Anki Mining
Create an Anki card with the sentence, audio clip, screenshot, and machine translation from the exact playback moment with one key press, click, or controller input.
Reading Annotations
Real-time subtitle annotations with frequency highlighting, JLPT tags, N+1 targeting, and a character name dictionary. Known words fade back; new words stand out. Grammar-only tokens render as plain text so you focus on what matters.
Immersion Dashboard
Local stats dashboard — watch time, anime library, vocabulary growth, mining throughput, session history, and trends. All stored locally, no third-party tracking.
Integrations
| YouTube | Auto-loaded yt-dlp subtitle tracks at startup with a manual overlay picker on demand (Ctrl+Alt+C) |
| AniList | Automatic episode tracking and progress sync |
| Jellyfin | Browse and launch media from your Jellyfin server |
| Jimaku | Search and download Japanese subtitles |
| alass / ffsubsync | Automatic subtitle retiming — requires alass or ffsubsync on your PATH (optional; subtitle syncing is disabled without them) |
| WebSocket | Annotated subtitle feed for external clients (texthooker pages, custom tools) |
Requirements
| Required | Optional | |
|---|---|---|
| Player | mpv with IPC socket |
— |
| Processing | ffmpeg, mecab + mecab-ipadic |
guessit (AniSkip), alass / ffsubsync (subtitle sync) |
| Media | — | yt-dlp, chafa, ffmpegthumbnailer |
| Selection | — | fzf / rofi |
Note
bunis required if building from source or using the CLI wrapper:subminer. Pre-built releases (AppImage, DMG, installer) do not require it.
Platform-specific:
| Linux | macOS | Windows |
|---|---|---|
hyprctl or xdotool + xwininfo |
Accessibility permission | No extra deps |
Arch Linux
paru -S --needed mpv ffmpeg mecab-git mecab-ipadic
# Optional
paru -S --needed yt-dlp fzf rofi chafa ffmpegthumbnailer xdotool xorg-xwininfo
# Optional: subtitle sync (install at least one for subtitle syncing to work)
paru -S --needed alass python-ffsubsync
# X11 / XWAYLAND
paru -S --needed xdotool xorg-xwininfo
macOS
brew install mpv ffmpeg mecab mecab-ipadic
# Optional
brew install yt-dlp fzf rofi chafa ffmpegthumbnailer
# Optional: subtitle sync (install at least one for subtitle syncing to work)
brew install alass
pip install ffsubsync
Grant Accessibility permission to SubMiner in System Settings > Privacy & Security > Accessibility.
Windows
Install mpv and ffmpeg and ensure both are on your PATH.
For MeCab, install MeCab for Windows with the UTF-8 dictionary.
Quick Start
1. Install
Arch Linux (AUR)
paru -S subminer-bin
Or manually:
git clone https://aur.archlinux.org/subminer-bin.git && cd subminer-bin && makepkg -si
Linux (AppImage)
mkdir -p ~/.local/bin
wget https://github.com/ksyasuda/SubMiner/releases/latest/download/SubMiner.AppImage -O ~/.local/bin/SubMiner.AppImage \
&& chmod +x ~/.local/bin/SubMiner.AppImage
wget https://github.com/ksyasuda/SubMiner/releases/latest/download/subminer -O ~/.local/bin/subminer \
&& chmod +x ~/.local/bin/subminer
Note
The
subminerwrapper uses a Bun shebang. Make surebunis on yourPATH.
macOS
Download the latest DMG or ZIP from GitHub Releases and drag SubMiner.app into /Applications.
Windows
Download the latest installer or portable .zip from GitHub Releases. Make sure mpv is on your PATH.
From source
See the build-from-source guide.
2. First Launch
Run the app. On first launch SubMiner starts in the system tray, creates a default config, and opens a setup popup to install the mpv plugin and configure Yomitan dictionaries.
3. Mine
subminer video.mkv # play video with overlay
subminer --start video.mkv # explicit overlay start
subminer stats # open immersion dashboard
subminer stats -b # stats daemon in background
subminer stats -s # stop background stats daemon
Documentation
Full guides on configuration, Anki setup, Jellyfin, immersion tracking, and more: docs.subminer.moe
Acknowledgments
SubMiner builds on the work of these open-source projects:
| Project | Role |
|---|---|
| Anacreon-Script | Inspiration for the mining workflow |
| asbplayer | Inspiration for subtitle sidebar and logic for YouTube subtitle parsing |
| Bee's Character Dictionary | Character name recognition in subtitles |
| GameSentenceMiner | Inspiration for Electron overlay with Yomitan integration |
| jellyfin-mpv-shim | Jellyfin integration |
| Jimaku.cc | Japanese subtitle search and downloads |
| Renji's Texthooker Page | Base for the WebSocket texthooker integration |
| Yomitan | Dictionary engine powering all lookups and the morphological parser |
| yomitan-jlpt-vocab | JLPT level tags for vocabulary |





