Thank you so much for the guide, and for confirming the process still works as of 29 March.
My challenge is in step 3.3.1 forward. There is not a "General" tab in "System Settings > Privacy & Security" (Apple has changed these names slightly since this guide was posted). I've clicked all around these and any tabs that I felt might be relevant, and I can't find anything that refers to bepines.sh. Can anyone please help me figure out how to override the security concern?
Thank you!