This no longer works because of changes in recent macOS versions
Log distributed notifications on macOS
Can be useful for checking if certain events are sent or investigating how some system functionality works.
$ git clone https://github.com/sindresorhus/LogDistributedNotifications
$ swift run
name = _NSDoNotDisturbEnabledNotification, object = nil, userInfo = nil
name = _NSDoNotDisturbDisabledNotification, object = nil, userInfo = nil
name = com.apple.HIToolbox.beginMenuTrackingNotification, object = nil, userInfo = Optional([AnyHashable("ToolboxMessageEventData"): 563])
name = com.apple.HIToolbox.endMenuTrackingNotification, object = nil, userInfo = nil
name = com.apple.HIToolbox.beginMenuTrackingNotification, object = nil, userInfo = Optional([AnyHashable("ToolboxMessageEventData"): 735])
name = com.apple.backup.DiscoverHookClientsNotification, object = Optional(com.apple.backup.BackupObject), userInfo = nil
name = com.apple.HIToolbox.endMenuTrackingNotification, object = nil, userInfo = nil