ZSH: Hide computer name in terminal

On MacOS 10.15 Catalina:

1. Open the file /private/etc/zshrc in a text editor
2. Locate the comment: # Default prompt
3. Modify the line that looks like this: PS1="%n@%m~ %& # "
4. Save the file. You will be prompted to enter a password to save it.
5. Load a new Terminal window.

For example, you can:

• Remove "%n@%m" to get rid of both the username and computer name
• Remove "%n" to get rid of the user name
• Remove "%m" to get rid of the machine name

Try to add export DEFAULT_USER=$USER to your .zshrc file