Customising environment

• Weirdly, tab completion is off by default in macos 13. You can enable by following these instructions.

• To change the prompt, edit PROMPT in ~/.zshrc. For example PROMPT='%F{cyan}%n%f:~$'. For more, see the ZSH manual.

• In macos 13, unlike Ubuntu 22.04, ssh-rsa is deprecated; you have to turn it on if you need to connect to an old server than only uses thi.