function startship_polyjuice() {
    if [ ! -n "${STARSHIP_CONFIG_FILE}" ]; then
        echo "STARSHIP_CONFIG_FILE is not set. Please source `\$HOME/.zshrc` first."
        return
    fi
    starship_config_file="$HOME/.config/starship.toml"
    if [ -f $starship_config_file ]; then
        if $(file "$starship_config_file" | grep -q "symbolic link") ; then
            if [[ $(readlink "$starship_config_file") != $(realpath "$STARSHIP_CONFIG_FILE") ]]; then
                ln -sf "$STARSHIP_CONFIG_FILE" "$starship_config_file"
            fi
        else
            if [ ! -f "$starship_config_file.bkp" ]; then
                mv "$starship_config_file" "$starship_config_file.bkp"
                ln -s "$STARSHIP_CONFIG_FILE" "$starship_config_file"
            else
                echo "Backup file already exists. Please remove $starship_config_file.bkp and try again."
                return
            fi
        fi
    else
        ln -sf "$STARSHIP_CONFIG_FILE" "$starship_config_file"
    fi
}