There is a .app (saved to ~/Applications) but there’s no binary inside. The full file structure:

  .
  └── Contents
      ├── Info.plist
      ├── Resources
      │   └── ApplicationIcon.icns
      └── _CodeSignature
          ├── CodeDirectory
          ├── CodeRequirements
          ├── CodeResources
          └── CodeSignature

Looks like all the necessary information is saved inside the Info.plist.