Adding a startup script on Big Sur [duplicate]

Question

I want to install a startup item in OS X Big Sur which runs a shell script as a user on my machine and connects via ssh to a remote machine I maintain. I use ssh keys so no password is required for this script to succeed. It will linger in the background. How would I accomplish this in Big Sur? My understanding is that the old /Library/Startup Items/xxx.plist trick is deprecated. What is used in its place?
Thanks!

Answer 1

Don't have macOS Big Sur yet; however, in previous version of macOS there is System Preferences > Users & Groups > you > Login Items, or use a Launch Agent. (I assume these methods are still available in macOS Big Sur.)

Have a look at:

• Open items automatically when you log in on Mac

• Creating Launch Daemons and Agents

• See also the manual pages for launchd and launchctl in Terminal.

  • ^{You can read the manual page for command in Terminal by typing command and then right-click on it and select: Open man Page}