I have built a flutter desktop app and I notarized it. I have to distribute it directly as I cannot turn on App Sandboxing due to the functions included in the application. I created a build of the app from Xcode and then uploaded it for notarization and it was successfully notarized. If I compress that app into a .zip and share it over the internet, it successfully opens on any computer. But when I create a dmg using appdmg from npm and I try to distribute it, it does not open and shows me the option to either move to bin or cancel. When I notarize the dmg using the command: xcrun notarytool submit "YourApp.dmg" --apple-id "email" --password "app-specific-password" --team-id "YOUR_TEAM_ID" --wait It notarizes successfully. I have also done: xcrun stapler staple "YourApp.dmg" And validated it but it does not seem to work when I distribute it over the internet by uploading on my website. It is a bit strange that when I distribute the notarized app, it does not show any error when distributed over the internet by uploading on my website and then downloading but for a notarized dmg, which is properly signed, it gives that error that wether move to bin or do nothing. Would love someone's help on this!