iScreensaver: Code Signing and Notarization for macOS

We have updated our instrutions for code-siging and notarizing your built iScreensavers for macOS. There is now a command-line script you can run from the Terminal which will do all the hard work for you.

Check it out here: https://iscreensaver.com/help/notes/code_signing/code_signing.shtml#option2

The script has been updated to version 1334, which provides better compatbiility with signing on Catalina and Big Sur, and also has better error messages when a problem occurs.