The Raspberry Pi is a remarkable piece of technology that enabled a whole slew of budget-friendly projects and allowed people to get extremely clever without having to break the bank.

https://www.ssh.com/ssh/keygen/

Main things for macOS/Linux:

Before you begin, on the home folder of each user you are going to remote into, run the following

• ssh-keygen -t rsa
• ssh-copy-id -i ~/.ssh/id.rsa.pub user@remoteserver
  • above may not work depending on your setup. It will most backend work for you
• If the above does not work:
  • scp ~/.ssh/id_rsa.pub user@remoteserver:~
  • cat ~/id_rsa.pub » ~/.ssh/authorized_keys

Windows

https://devops.ionos.com/tutorials/use-ssh-keys-with-putty-on-windows