cd '/Volumes/Macintosh NVMe'
mkdir -p private/tmp
cp -R '/Install macOS Big Sur.app' private/tmp
cd 'private/tmp/Install macOS Big Sur.app'
mkdir Contents/SharedSupport
curl -L -o Contents/SharedSupport/SharedSupport.dmg http://swcdn.apple.com/content/downloads/55/59/071-00696-A_4T69TQR1VO/9psvjmwyjlucyg708cqjeaiylrvb0xph94/InstallAssistant.pkg
./Contents/MacOS/InstallAssistant_springboard