gibMacOS
Py2/py3 script that can download macOS components direct from Apple
...It supports Python 2 and Python 3 and runs on Windows, macOS, and Linux. The software retrieves available macOS releases through Apple's software update catalogs, helping users obtain authentic operating system files. It provides a command-line interface for selecting and downloading specific macOS versions. Additional scripts help assemble downloaded components into macOS installer applications. On Windows, it can create Internet Recovery USB installers for macOS Catalina and earlier using external utilities. The project is particularly useful for macOS recovery, installation media preparation, and Hackintosh development. ...