Dmg [top] | Niresh Mavericks

If you’re determined to try this on an old PC, follow these steps. Only attempt this on a spare computer with no important data.

Once you have acquired the Niresh Mavericks DMG file, you need to "burn" it to a USB drive.

Technically, copyright law in most countries forbids distributing modified macOS installers. However, because Mavericks is free and abandoned, enforcement is virtually nonexistent.