Sparkbooth on MacOS
To run Sparkbooth on MacOS, you will need to first go to System Preferences, select Security & Privacy, select General, and Allow apps downloaded from: App Store and identified developers
After installing and running Sparkbooth, the operating system will prompt you to allow Sparkbooth to access the Documents folder and cameras. You need to grant Sparkbooth access to both permissions. Sparkbooth needs to access the Documents folder, so it can save the photos in the folder. Sparkbooth needs camera access, so it can use the webcam to take photos.
Next you will need to press command-3 to open the camera settings dialog and then select the webcam you want to use.