Plugin no longer works in SublimeText 4

[ChrisWeiser]

Usage:

• Installed Diffy
• Opened two similar files side-by-side
• Ran "Diffy Compare" from Command Pallete.
  • Also attempted command+K, command+C keyboard shortcut (using a Mac)

Expectation: Two files would show highlighted differences.

Outcome: Nothing is highlighted, and there is no indication that anything has occurred—other than Command Pallete dismissed.

I really miss this plugin!