macUSB

macUSB is a one-click tool that transforms your modern Mac (Apple Silicon) into a service machine capable of reviving older Apple computers.

With Apple's transition to its own silicon (M1, M2, M3...), preparing installation media for older Intel-based computers has become a challenge. Many people encounter Terminal errors, issues with expired certificates in old installers, or simply a lack of compatibility with system tools.

macUSB solves this problem.

The application automates the entire process of creating a bootable USB drive. You don't need to search for commands online, worry about disk formatting, or manually fix validation errors in old installation files. What do you gain?

• Legacy Support: The ability to create installers for systems over a decade old (e.g., OS X Lion) directly on the latest Mac on Apple Silicon.
• Time Saving: The app detects the system version in the .dmg file, formats the drive, and copies files automatically.
• Auto Fixes: For certain older systems (e.g., High Sierra/Mojave), the app automatically applies necessary fixes so the installer works despite expired Apple certificates.