Boilerplate for escalating shell script privileges using the standard macOS password dialog

macos-shell-escalate.sh

#!/usr/bin/env bash

if [[ $EUID -ne 0 ]]; then
    # Find this script in the filesystem so we can re-run it. (There are probably better ways of doing this.)
    self="$(cd $(dirname $(pwd -P)/${BASH_SOURCE[0]}) && pwd -P)/$(basename ${BASH_SOURCE[0]})"

    admin_prompt="Hax requires root plz"

    exec 10>&1 11>&2 # Copy stdout and stderr so we can bypass osascript's control of the terminal.
    osascript -e "do shell script \"$self >&10 2>&11\" \
        with administrator privileges \
        with prompt \"$admin_prompt\"" &> /dev/null # We don't care about osascript's error output.
        
    exit # Don't continue with the rest of the script in this outer instance.
fi

# The rest of the script as usual
echo "Executing hax" || ( echo "Hax failed!" && exit 1 )

This code used to work in older macOS, but is failing on Big Sur. Any ideas?

Sorry, no idea. I haven't used macOS in many years now.