This is a digital reconstruction of a physical disc. macOS uses DMGs to package and distribute installers. When opened, it mounts like a virtual thumb drive, allowing users to drag the application into their Applications folder. The Reality of "Conversion"
Below are the primary methods users employ to take an iOS app package (IPA) and turn it into a distributable or archival disk image (DMG) on a Mac. ipa to dmg
If your goal is simply to (no execution requirement), the above methods work perfectly. This is a digital reconstruction of a physical disc