Ghast

A native macOS terminal multiplexer built with SwiftUI and Ghostty.

Forked from cmux.

Features

• Workspaces — tabs grouped by working directory, auto-organized as you cd
• Split panes — horizontal and vertical splits with draggable dividers, resize, equalize, and zoom
• Tab management — drag-to-reorder, keyboard shortcuts (Cmd+1-9), split-by-drag
• Drag & drop — drop files/folders from Finder to paste shell-escaped paths
• Ghostty config — reads your ~/.config/ghostty/config for keybindings, colors, fonts
• URL handling — clickable links open in your default browser
• Desktop notifications — terminal programs can send macOS notifications
• Search — search terminal output via Ghostty keybindings

Prerequisites

• macOS 13.0+
• Zig toolchain (for building GhosttyKit)
• xcodegen (brew install xcodegen)
• Xcode 15+

Build

# Clone with submodules
git clone --recursive https://github.com/MarvinSchwaibold/ghast.git
cd ghast

# Run setup (inits submodule, builds GhosttyKit, generates Xcode project)
./scripts/setup.sh

# Build
xcodebuild -project ghast.xcodeproj -scheme ghast -configuration Release build

# Or open in Xcode
open ghast.xcodeproj

Usage

Ghast respects your Ghostty keybindings. Default shortcuts:

Credits

• Ghostty by Mitchell Hashimoto — the terminal engine
• cmux — the original project this was forked from