MVT is a tool from https://github.com/mvt-project/mvt
Create an encrypted backup [Cause that includes more stuff.] https://support.apple.com/en-us/HT205220
libimobiledevice looks to be needed only on linux, but what the heck
brew install --HEAD libimobiledevice
Might be already present!
brew install python3 libusb sqlite3
pip3 install mvt
Maybe do it with internet off?
mvt-ios decrypt-backup -p password -d /decrypted /backup
Download the ones you need from https://github.com/AmnestyTech/investigations
https://github.com/AmnestyTech
mvt-ios check-backup -o /output -i /pegasus.stix2 /backup