Try it

• Playground - try in your browser, no install
• VS Code Marketplace / Open VSX - works in VS Code and its forks
• Standalone app - Mac, Windows, Linux

Features

• Automatic completion detection. Detect when an agent needs your attention with standard terminal .,mn,.mn.,mnWhen a pane goes quiet for two seconds, it's marked done. Works with builds, AI agents, scripts, anything.
• tmux-compatible keybindings. Same prefix, same splits, same pane navigation. Muscle memory transfers.
• Full mouse support. Click to split, drag to resize, scroll to navigate. Or stay on the keyboard.
• Copy-paste that works. Click and drag selects text the way you'd expect, even in mouse-aware TUIs that normally swallow it as escape codes. Ctrl+C copies; killing the program is a separate gesture.
• Sleep/wake panes. Minimize a terminal to a compact status indicator. It keeps running and you can still see whether its task finished.
• Dual distribution. Standalone desktop app (Mac/Windows/Linux) or VS Code extension.
• Pocket (coming soon). Tether your sessions to your phone over WebRTC — walk away, keep working.

Development

This project uses pnpm, react, typescript, vite, tailwind, storybook, and xterm.js. The standalone app is built with Tauri.

The terminal is currently hosted by node-pty, but we plan on switching to a Rust backend for the PTY.

Quickstart

pnpm install
pnpm dev:website    # vite hotreload at http://localhost:5173/playground
pnpm dev:standalone # tauri hotreload

pnpm dogfood:vscode # builds the VSCode extension and installs it into your local VSCode
pnpm dogfood:standalone           # builds and runs the standalone app
pnpm dogfood:standalone --install # installs your local build overtop of your existing system installation

pnpm storybook    # http://localhost:6006
pnpm test         # runs all tests

Folder structure

Path	Description
lib/	Shared terminal library
website/	dormouse.sh (including playground)
standalone/	Tauri desktop app
vscode-ext/	VSCode extension

Agent strategy

This project was built with a combination of Claude, Codex, and Devin. Recommend running npx skills experimental_install to install the skills we are using (namely impeccable.style). See AGENTS.md for more detail.

License

FSL-1.1-MIT — Copyright 2026 DiffPlug LLC

Production dependencies