Is there a tool to display a random message on the lockscreen in Mac OS X?

Question

macOS

I have a list of various quotes. I would like to change the message to a random quote from this list every time a lockscreen appears.

Answer 1

https://discussions.apple.com/thread/3941282?start=0&tstart=0
The topic describes the location of png files that are displayed in the background of the login screen, there is also a link to instructions for creating a banner at login. You can use cron to call a script that will write the desired message in a picture or banner