wsmux

Workspace launcher for macOS. Open and close entire project environments with one command.

One config file. One command. Your entire workspace — editors, browsers, terminals, docker, apps — opens exactly where you left it.

Install

pip install wsmux

Or install from source:

git clone https://github.com/safeersoft/wsmux.git
cd wsmux
pip install .

The CLI command is mux.

Quick Start

# Create a config in your project
cd ~/my-project
mux --init .

# Edit .mux.json to match your setup, then:
mux .                # Open everything
mux -s .             # Save window positions + close
mux .                # Reopen — everything is where you left it

Commands

Named Projects

Register projects to open them from anywhere:

mux --add myapp ~/projects/myapp    # Register
mux myapp                            # Open from anywhere
mux -s myapp                         # Save + close from anywhere
mux --projects                       # List registered projects
mux --remove myapp                   # Unregister

Config Format

.mux.json in your project root:

{
  "name": "My Project",
  "apps": [
    {
      "type": "vscode",
      "paths": ["./frontend", "./backend"],
      "windows": {
        "./frontend": {"position": [0, 0], "size": [960, 1080]},
        "./backend": {"position": [960, 0], "size": [960, 1080]}
      }
    },
    {
      "type": "browser",
      "app": "Microsoft Edge",
      "urls": ["http://localhost:3000", "https://github.com/me/repo"],
      "window": {"position": [1920, 0], "size": [1680, 1050]}
    },
    {
      "type": "terminal",
      "app": "Terminal",
      "tabs": [
        {
          "name": "server",
          "command": "npm run dev",
          "cwd": "./backend",
          "window": {"position": [0, 600], "size": [800, 400]}
        }
      ]
    },
    {
      "type": "docker",
      "services": ["postgres", "redis"],
      "cwd": "./backend"
    },
    {
      "type": "app",
      "name": "Postman"
    }
  ]
}

Entry Types

Window Positions

Mux remembers where every window was — position, size, and which monitor.

• Auto-capture: mux -s saves current positions before closing
• Manual capture: mux -c snapshots your current desktop
• Restore: mux . reopens windows at their saved positions
• Multi-monitor: positions use macOS unified coordinates, so windows restore to the correct monitor

Save Behavior (mux -s)

When closing with -s, mux compares your current desktop against the saved config:

• Existing entries: geometry is updated silently
• New entries (new browser tabs, apps): you're prompted for each one:

New entries detected:

    + [App] Postman  [y/n/i] (yes/no/ignore forever): y
      ✓ Added

    + [Microsoft Edge] reddit.com + 2 more tabs  [y/n/i] (yes/no/ignore forever): i
      ✗ Ignored forever: URL pattern 'reddit.com'

• y — add to config
• n — skip this time
• i — skip and add to global ignore (never captured again)

Global Ignore

~/.mux/ignore.json — patterns that are never captured:

{
  "apps": ["Slack"],
  "urls": ["chatgpt.com", "claude.ai", "reddit.com"],
  "paths": []
}

Browser Isolation

Each project opens its browser tabs in a new isolated window. Running mux for two different projects won't mix their tabs together.

Requirements

• macOS (uses AppleScript for window management)
• Python 3.10+
• Terminal needs Accessibility permission (System Settings > Privacy & Security > Accessibility) for window positioning

Data Files

All stored in ~/.mux/:

License

MIT