I'm not sure what to make of this. The screen shot suggests it will enable one to write to Apple's notification service, but when I launch the program (on Monterey, 12.2) All I get is the ability to create a new APNS object and a prompt for a certificate. The certificate menu is empty, and that's it. I can do nothing else. There is no documentation included, nor is there on GitHub, so one is left wondering, "What's this all about?"