Installation

SubMiner draws an interactive overlay on top of the mpv video player. While you watch Japanese media, you hover a word in the subtitles to look it up, then turn it into an Anki card without leaving the video.

Building cards from what you watch is called sentence mining. SubMiner bundles its own copy of Yomitan (a pop-up dictionary) and talks to AnkiConnect (an Anki add-on that lets other programs create cards), so it can fill in the sentence, audio, and screenshot for you.

Getting started takes three steps:

1. Install mpv and the optional extras you want.
2. Install SubMiner.
3. Launch it and follow the first-run setup.

1. Install requirements

Only mpv is required. Install ffmpeg too unless you are fine with cards that have no audio or screenshot.

Dependency	Needed for	Platforms
mpv	Required. The player SubMiner draws over.	All
fuse2	Required to run the AppImage.	Linux
ffmpeg	Recommended. Audio clips and screenshots on cards. Without it those fields stay empty.	All
MeCab + mecab-ipadic	Recommended. More accurate N+1, JLPT, and frequency highlighting.	All
yt-dlp	YouTube playback.	All
xz	TsukiHime subtitle downloads. Most Linux distros already have it.	All
guessit	Better title, season, and episode detection for AniSkip and AniList.	All
alass or ffsubsync	Subtitle syncing. You need at least one to use it.	All
fzf, rofi	The file pickers in the subminer command (rofi is Linux only).	Linux, macOS
chafa, ffmpegthumbnailer	Thumbnail previews in the pickers.	Linux, macOS

To generate Japanese subtitles from audio, you also need whisper.cpp. See Subtitle generation.

Linux

SubMiner needs to track the mpv window, and how it does that depends on your desktop:

• Hyprland: supported natively through hyprctl.
• Sway: supported natively through swaymsg.
• Anything else (X11, GNOME, KDE Plasma, other Wayland compositors): mpv and SubMiner must run under X11 or Xwayland. Install xdotool and xwininfo. The subminer command picks the X11 backend automatically, or you can force it with --backend x11.

Arch Linux

sudo pacman -S --needed mpv ffmpeg
# Recommended (MeCab is only in the AUR)
paru -S --needed mecab-git mecab-ipadic
# Optional
sudo pacman -S --needed yt-dlp fzf rofi chafa ffmpegthumbnailer
# Optional: subtitle sync (install at least one)
paru -S --needed alass python-ffsubsync
# Only for desktops other than Hyprland or Sway
sudo pacman -S --needed xdotool xorg-xwininfo

Ubuntu / Debian

sudo apt install mpv ffmpeg
# Recommended
sudo apt install mecab libmecab-dev mecab-ipadic-utf8
# Optional
sudo apt install yt-dlp fzf rofi chafa ffmpegthumbnailer
# Only for desktops other than Hyprland or Sway
sudo apt install xdotool x11-utils
# Optional: subtitle sync
pip install ffsubsync
cargo install alass-cli

Fedora

sudo dnf install mpv ffmpeg
# Recommended
sudo dnf install mecab mecab-ipadic
# Optional
sudo dnf install yt-dlp fzf rofi chafa ffmpegthumbnailer
# Only for desktops other than Hyprland or Sway
sudo dnf install xdotool xorg-x11-utils
# Optional: subtitle sync
pip install ffsubsync
cargo install alass-cli

macOS

You need macOS 11 (Big Sur) or later.

brew install mpv ffmpeg
# Recommended
brew install mecab mecab-ipadic
# Optional
brew install yt-dlp fzf chafa ffmpegthumbnailer
# Optional: subtitle sync
brew install alass
pip install ffsubsync

mecab must be on your PATH when SubMiner starts. Homebrew puts it in /opt/homebrew/bin on Apple Silicon and /usr/local/bin on Intel.

Windows

You need Windows 10 or later. Install mpv and ffmpeg with winget, which ships with Windows 11 and current Windows 10. In PowerShell or Command Prompt:

winget install shinchiro.mpv
winget install Gyan.FFmpeg
winget install yt-dlp.yt-dlp   # optional, for YouTube

Close and reopen the terminal, then check both commands work:

mpv --version
ffmpeg -version

ffmpeg must be on PATH, because SubMiner runs it by name to make card audio and screenshots. mpv does not have to be. If mpv --version says not recognized, find mpv.exe (usually in %LOCALAPPDATA%\Programs\mpv) and either add that folder to PATH or enter the full path to mpv.exe during first-run setup (mpv.executablePath).

Alternative: Scoop (no admin rights, includes xz)

Scoop installs into your user profile and always adds commands to PATH. It is the only Windows package manager that also packages xz, which TsukiHime downloads need.

# One-time Scoop setup
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
Invoke-RestMethod -Uri https://get.scoop.sh | Invoke-Expression

scoop bucket add extras
scoop install extras/mpv main/ffmpeg
# Optional
scoop install main/yt-dlp main/xz

Alternative: manual download

1. Download mpv from mpv.io/installation and ffmpeg from ffmpeg.org/download.html.
2. Unzip each into a permanent folder, for example C:\Tools\mpv and C:\Tools\ffmpeg. Find the folders that contain mpv.exe and ffmpeg.exe (for ffmpeg this is usually bin).
3. Press Win, search for Edit the system environment variables, and open it. Click Environment Variables, select Path under User variables, click Edit, and add both folders with New.
4. Open a new terminal and run mpv --version and ffmpeg -version. If either says not recognized, the folder you added does not contain the .exe.

For xz without Scoop, download XZ Utils and add its folder to PATH the same way.

For more accurate highlighting, install MeCab for Windows with the UTF-8 dictionary. The fzf and rofi pickers do not apply on Windows.

2. Install SubMiner

Arch Linux (AUR)

Install subminer-bin. It includes the AppImage and the subminer command.

paru -S subminer-bin

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

First-run setup can install the subminer command for you.

macOS (DMG)

1. Download the DMG from GitHub Releases, open it, and drag SubMiner.app into /Applications.

2. If macOS blocks the app on first launch, right-click it and choose Open, or run:

   xattr -d com.apple.quarantine /Applications/SubMiner.app

3. Open System Settings > Privacy & Security > Accessibility and enable SubMiner (add it if it is missing). The overlay cannot follow the mpv window without this.

First-run setup can install the subminer command for you.

Windows (installer)

Download from GitHub Releases:

• SubMiner-<version>.exe: the installer. Use this one.
• SubMiner-<version>-win.zip: portable version.
• subminer.cmd: optional terminal command (setup can install it for you).

From source

Linux

git clone --recurse-submodules https://github.com/ksyasuda/SubMiner.git
cd SubMiner
make deps
bun run build
bun run build:appimage   # optional: package an AppImage

Building from source needs Bun installed.

macOS

git clone --recurse-submodules https://github.com/ksyasuda/SubMiner.git
cd SubMiner
make deps
make build-macos

The .dmg and .zip land in release/. For an unsigned local build, run bun run build:mac:unsigned.

Windows

git clone https://github.com/ksyasuda/SubMiner.git
cd SubMiner
git submodule update --init --recursive
bun install
Set-Location stats
bun install --frozen-lockfile
Set-Location ../vendor/texthooker-ui
bun install --frozen-lockfile
bun run build
Set-Location ../..
bun run build:win

3. Launch and first-run setup

Start SubMiner. The setup window opens on first launch.

• Linux (AUR): subminer app --setup
• Linux (AppImage): ~/.local/bin/SubMiner.AppImage --setup
• macOS: open SubMiner.app from /Applications
• Windows: run SubMiner from the Start menu

Setup walks you through:

1. Config file. Created at ~/.config/SubMiner/config.jsonc (Linux and macOS) or %APPDATA%\SubMiner\config.jsonc (Windows).
2. Yomitan dictionaries. Import at least one dictionary, or lookups will not work. SubMiner's Yomitan is separate from any Yomitan in your browser.
3. The subminer command (optional). Setup installs it into a folder already on your PATH. If there is none on Linux or macOS, it uses ~/.local/bin and shows the export PATH=... line to add to your shell config. On Windows it adds %LOCALAPPDATA%\SubMiner\bin to your user PATH.
4. SubMiner mpv shortcut (Windows only). A Start menu or desktop shortcut that opens mpv with SubMiner attached.

Finish setup unlocks once the config exists and at least one dictionary is imported. To reopen setup later, run subminer app --setup.

Play a video

subminer video.mkv

On Windows, double-click the SubMiner mpv shortcut or drag a video onto it.

The overlay appears over mpv, and the subtitle text becomes hoverable. See Usage for everyday use.

Check your setup

subminer doctor

This checks for the SubMiner app, mpv, ffmpeg, yt-dlp, fzf, rofi, your config file, and the mpv socket path. Only a missing app or mpv counts as a failure. The rest are reported as optional.

Anki setup

To create cards:

1. Install Anki.
2. In Anki, open Tools > Add-ons > Get Add-ons and enter 2055492159 to install AnkiConnect.
3. Restart Anki. Keep it open while you use SubMiner.

SubMiner connects to AnkiConnect at its default address with no extra setup. To choose your deck and card fields, see Anki integration.

Updates

subminer -u

The tray menu's Check for Updates also installs updates on Linux, macOS, and Windows. If the AppImage sits in a folder you cannot write to, SubMiner prints the command to run instead of asking for admin rights.

If you installed from the AUR, update through your package manager instead.

Launching mpv yourself

The subminer command and the Windows shortcut start mpv with the IPC socket SubMiner needs. If you start mpv another way, add this option or the overlay starts without subtitles:

--input-ipc-server=/tmp/subminer-socket      # Linux and macOS
--input-ipc-server=\\.\pipe\subminer-socket  # Windows

SubMiner loads its mpv plugin automatically, so there is nothing else to install. See mpv plugin for the in-player keybindings.

Manual launcher install

Use these if you skipped the launcher during setup. The launcher finds SubMiner in the usual install locations. For a custom location, set SUBMINER_BINARY_PATH to the app executable.

Linux

wget https://github.com/ksyasuda/SubMiner/releases/latest/download/subminer -O ~/.local/bin/subminer
chmod +x ~/.local/bin/subminer

macOS

sudo curl -fSL https://github.com/ksyasuda/SubMiner/releases/latest/download/subminer -o /usr/local/bin/subminer
sudo chmod +x /usr/local/bin/subminer

Windows

Download subminer.cmd from GitHub Releases and put it in a folder on your user PATH.

Bundled Bun runtime

The subminer command runs on a copy of Bun 1.3.5 that ships inside the app, so you do not need to install Bun. Bun is MIT licensed and statically links JavaScriptCore (LGPL 2.0) and TinyCC (LGPL 2.1). License texts and a SOURCE.md ship in the app under resources/bun/licenses, and each GitHub release includes bun-v1.3.5-source.tar.gz with the matching sources.

Next: Usage.