Go to Stackby
Download the Stackby macOS Desktop app from here

Requirements 

  • Internet 
  • Mac OSX 10.9+ 
  • Mac Device (M1 or Silicon) 


How to Install the Mac App 

Step 1: Install the Mac App

Step 2: Click on the package icon below 

Step 3: Move the Stackby app to Applications folder

 

Step 4: Once you see the above message, 

Go to System Preferences --> Security and Privacy


In General, click on 'Allow apps download from and click on 'Open Anyway'

Once you click on that, your Stackby Desktop App will open. Go ahead and start stacking. 

You will see Stackby icon on desktop, for opening that just click Control + Right click (from mouse).