How do I have a projector machine always mirror at 1024x768? By default new users get 1920x1200 and non-mirrored.
I thought that mirroring of projectors was done on the projector? Our projectors all have the setting to mirror in the setup screen.
As for resolution, you might need to do some kind of scripting or policy limitations on the users for first login? Im not sure how you can do this in macOS.
Here are two command line tools that will set mirroring and display resolution as you need.