Is Notification Content Extension supported for Mac apps?

Hello folks,

Documentation for UNNotificationContentExtension says that it's supported on macOS 11.0+.

Does that mean that notification content extension is supported for good ol' cocoa apps (i.e. not Mac Catalyst) on Big Sur and up?

I'm asking because I created the extension, bundled it with my cocoa app and it doesn't seem to work at all and I'm not sure if I should keep digging or it's simply not supported.

Also is there any recommended way how to troubleshoot issues with app extensions? I.e. looking for a logs of some service or some command line tool, anything?

Thank you! o/

Is Notification Content Extension supported for Mac apps?
 
 
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