Since the authorization plug-in runs in pre-boot stage it won't be able to communicate with my software. Will it be able to make at least an HTTPS call to the backend system? Also is installing of this plug-in and its configuration possible via a regular pkg installer with some script (assuming yes)? Or it requires manual configuration like changing the mechanisms array?

This is a last resort solution for us but we're still evaluating other options. Basically each system user may have a different environment setup and we would like to chose to which one to login.

Basically we're making a test automation software in which one of the flows allows to auto-login to the system with provided username and password for the system account. After that the flow can start apps, send some commands to them etc. Therefore was wondering if the auto-login step (even after pre-boot login and logout without restarting the system) is even possible.

I only found something like this https://apple.stackexchange.com/questions/386637/login-user-opposite-to-launchctl-bootout-user-id but it seems it's not possible on macOS. Would love a confirmation still so I can stop researching :)