Getting the macOS Installer
Get macOS Installer with gibMacOS
Downloading the installer files fairly straight forward process but may take a while depending on your internet speeds.
To start open the gibMacOS folder and run the gibMacOS script,
This will allow you to choose the macOS version to download.
r and press enter to enable recovery only mode. (This will save time downloading)
Once selected, which in my case I chose option 1. It will download the macOS installer files.
Once downloaded you can proceed to the next step.