"Niresh Big Sur" refers to (distribution) of macOS Big Sur specifically modified to be installed on non-Apple hardware , a process commonly known as creating a Hackintosh Key Features and Context Customized Installer : Unlike the official macOS Big Sur from Apple, Niresh distros include pre-configured drivers (kexts)
: A 16GB or larger USB flash drive for the bootable installer. How to Create the Bootable Installer Niresh Big Sur Dmg
: Hackintosh Zone, the primary source for Niresh distros, officially shut down in August 2020. Missing Releases "Niresh Big Sur" refers to (distribution) of macOS
Niresh provides a DMG (Disk Image) file for Big Sur, which allows users to create a bootable installer for macOS Big Sur. This DMG file can be used to install Big Sur on compatible hardware, including Hackintosh systems. This DMG file can be used to install
Most experienced members of the Hackintosh community now recommend the Vanilla method Dortania OpenCore Guide