Ghostty Terminal

A true Ghostty-powered terminal pane embedded inside Obsidian — same VT parser as the native Ghostty app, no Electron quirks, no xterm.js compromises.

What is this?

Ghostty Terminal embeds a fully functional, real terminal inside your Obsidian vault pane. Under the hood it uses:

• ghostty-web — the official Ghostty VT parser compiled to WebAssembly (WASM). This is the same libghostty-vt engine that powers the native Ghostty terminal app on macOS and Linux.
• A Python PTY proxy (pty_helper.py) — spawns your actual shell in a real pseudo-terminal (PTY) and proxies I/O between it and the WASM terminal renderer. Uses Python's stdlib pty module — no native Node addons required.
• Canvas renderer — ghostty-web's CanvasRenderer draws the terminal to a <canvas> element pixel-perfectly using exact font metrics.

This is not a wrapper around xterm.js. You get real Ghostty VT semantics: proper Unicode (grapheme clusters, wide chars), 256-color + truecolor, OSC 8 hyperlinks, Kitty graphics protocol, and more.

Screenshots

Features

Requirements

Windows: The PTY proxy does not currently support Windows. macOS and Linux are fully supported.

Installation

Option A — BRAT (recommended for early access)

BRAT lets you install plugins directly from GitHub without waiting for community approval.

1. Install the BRAT plugin from Obsidian Community Plugins
2. Open BRAT settings → Add Beta Plugin
3. Enter the repository URL:

   https://github.com/lavs9/obsidian-ghostty-terminal
   

4. Click Add Plugin — BRAT will download and install it automatically
5. Go to Settings → Community plugins and enable Ghostty Terminal

Option B — Manual install from GitHub release

1. Go to the Releases page and download the latest release assets:

   • main.js
   • manifest.json
   • styles.css
   • pty_helper.py

2. Create the plugin folder in your vault:

   mkdir -p /path/to/your-vault/.obsidian/plugins/ghostty-terminal
   

3. Copy the downloaded files into that folder

4. In Obsidian: Settings → Community plugins → Toggle "Restricted mode" OFF → Enable "Ghostty Terminal"

Option C — Build from source

# 1. Clone the repo
git clone https://github.com/lavs9/obsidian-ghostty-terminal
cd obsidian-ghostty-terminal

# 2. Install dependencies
npm install

# 3. Build
npm run build

# 4. Copy plugin files to your vault
VAULT=~/path/to/your-vault
mkdir -p "$VAULT/.obsidian/plugins/ghostty-terminal"
cp main.js manifest.json styles.css pty_helper.py "$VAULT/.obsidian/plugins/ghostty-terminal/"

# 5. Enable in Obsidian
# Settings → Community plugins → Enable "Ghostty Terminal"

Development (hot-reload)

# Symlink the repo directly into your vault's plugins folder for development
ln -s "$(pwd)" ~/path/to/your-vault/.obsidian/plugins/ghostty-terminal

# Start the watcher — rebuilds on every save
npm run dev

Install the Hot-Reload plugin in Obsidian to auto-reload the plugin on file change.

Usage

Opening a terminal

Keyboard shortcuts

You can assign custom hotkeys to "Open Ghostty Terminal" via Settings → Hotkeys.

Configuration

Ghostty config auto-detection

The plugin automatically reads your Ghostty config from:

• macOS: ~/Library/Application Support/com.mitchellh.ghostty/config
• Linux: ~/.config/ghostty/config

The following config keys are recognized:

Plugin settings

Override any Ghostty config value from Obsidian → Settings → Ghostty Terminal:

Architecture

obsidian-ghostty-terminal/
├── main.ts                   Plugin entry + GhosttyTerminalView
│                               - Registers view, ribbon, commands, context menu
│                               - Boots ghostty-web WASM on startup
│                               - Manages Terminal lifecycle (init, resize, dispose)
│                               - Spawns pty_helper.py and proxies I/O
├── src/
│   ├── ghostty-config.ts     Ghostty config file parser
│   │                           - Auto-detects config location on macOS + Linux
│   │                           - Parses font, colors, cursor, scrollback, shell
│   └── settings.ts           Plugin settings schema + Obsidian SettingTab UI
├── pty_helper.py             Python PTY proxy (Unix only)
│                               - Forks a real PTY via Python stdlib `pty.fork()`
│                               - Proxies stdin/stdout between JS and shell
│                               - Reads 4-byte resize frames on fd 3 (rows, cols)
│                               - Calls TIOCSWINSZ to resize the PTY kernel window
├── styles.css                Plugin CSS — scoped .ghostty-* classes
├── manifest.json             Obsidian plugin manifest
└── esbuild.config.mjs        Build config — bundles main.ts + ghostty-web WASM

How the PTY bridge works

Obsidian (Electron/Node.js)
        │
        ▼
  child_process.spawn("python3 pty_helper.py /bin/zsh")
        │ stdin  ──────────────────────────────► PTY master fd
        │ stdout ◄────────────────────────────── PTY master fd
        │ stdio[3] (resize pipe, write-only) ──► ioctl TIOCSWINSZ
        │
        ▼
  ghostty-web Terminal (WASM + Canvas)
    - terminal.write(data)    ← stdout bytes from PTY
    - terminal.onData(cb)     → stdin bytes to PTY
    - terminal.resize(c, r)   → 4-byte frame to resize pipe

Why Python instead of node-pty?

node-pty is a native Node.js addon that requires recompilation against Electron's version of V8 (electron-rebuild). This is fragile and breaks on Obsidian updates. Python's pty module is part of the standard library and works out of the box on any macOS or Linux machine — no compilation needed.

Troubleshooting

Terminal shows "pty_helper.py not found"

Make sure pty_helper.py is in the same folder as main.js inside .obsidian/plugins/ghostty-terminal/. If you installed from source, re-run the copy step.

Shell doesn't start / shows Python error

1. Verify Python 3 is available: which python3
2. Check Obsidian's developer console (View → Toggle Developer Tools → Console) for the full error

Font looks wrong or spacing is off

Set an explicit font in Settings → Ghostty Terminal → Font family override. Use a monospace font installed on your system, e.g. "Menlo", "Monaco", "Fira Code", or "JetBrains Mono".

Colors don't match my Ghostty theme

The plugin reads your Ghostty config automatically. If colors look wrong:

1. Check Settings → Ghostty Terminal → Config file path — leave blank for auto-detection
2. Open the developer console and look for a [GhosttyTerminal] config: log line to see what was parsed

Contributing

Pull requests are welcome! Please:

1. Fork the repo and create a feature branch
2. Run npm run build to verify there are no TypeScript errors
3. Test in Obsidian with a real vault before submitting

Roadmap

• Obsidian theme sync (auto-switch light/dark palette)
• OSC 633 shell integration (prompt anchoring, command detection)
• Tab bar for multiple terminals in a single pane
• Windows support via ConPTY
• Submit to Obsidian Community Plugins registry

License

MIT © Mayank Lavania