I think you can do this by mounting a macos VM: link
New macOS versions do not require iTunes and you can back up directly through the finder window. Your backup will be located there: /Users/{USERNAME}/Library/Application Support/MobileSync/Backup
I self-host Gitea and is pretty lightweight and low maintenance. Great solution!
I think you can do this by mounting a macos VM: link
New macOS versions do not require iTunes and you can back up directly through the finder window. Your backup will be located there: /Users/{USERNAME}/Library/Application Support/MobileSync/Backup