If you are reading this in 2025 or later, use OpenCore Legacy Patcher 2.0+ which now supports macOS Ventura and Sonoma. You might as well skip Big Sur and patch straight to Ventura for longer app support life.
However, you must manage your expectations. Your patched Mac will not run Final Cut Pro well. It will crash if you push the RAM too hard. But for watching YouTube, writing documents, and managing email, it turns an "obsolete" paperweight into a daily driver. Macos Big Sur Patcher
If you own a perfectly functional Mac from 2012 or earlier, you know the frustration. The system runs well, the hard drive has been swapped for an SSD, and the RAM is maxed out—yet Apple says it is "vintage." Enter the hero of the homebrew community: . If you are reading this in 2025 or