Rack.

Rack. is a small macOS menu bar app for running and monitoring multiple dev servers at once.

What it does

• Runs multiple commands concurrently from your menu bar
• Persists named server configs
• Supports working directories, args, and environment variables
• Lets you start, stop, and restart each server independently
• Stores recent process output so you can inspect logs quickly

Run it

swift run

Build a .app

./scripts/build-app.sh

That writes the bundled app to:

dist/Rack.app

Build a .dmg

./scripts/build-dmg.sh

That writes the installer disk image to:

dist/Rack.dmg

The DMG includes Rack.app plus an Applications shortcut for drag-and-drop install.

The first launch creates a config file at:

~/.config/rack/config.json

Rack. will automatically migrate existing config and terminal preferences on first launch.

Unsigned Install

Rack. is currently distributed as an unsigned macOS app.

• Open the DMG and drag Rack.app into Applications
• If macOS blocks the first launch, right-click the app and choose Open
• If needed, allow it in System Settings > Privacy & Security

Notes

• Commands are executed in an interactive login zsh shell
• Arguments are currently split on whitespace, so quoted shell syntax is not supported yet
• This is intended for local dev servers, not long-lived production services