Here's a tool that makes it easy to change the Apple Update branch (Developer Seed, Customer Seed, Public Seed). In addition, you have the opportunity to download a macOS installer application directly from the Apple server. Access to the App Store or an AppleID is therefore not necessary. A sparseimage is created in which the install application is generated. Furthermore, it is possible to create a USB installer with it.
And before the question comes up: Is such a download legal?
Why not? It is directly from the Apple server. For everyone publicly available.
The idea for the tool has emerged from this:
https://github.com/maxschlapfer/MacAdminHelpers/tree/master/AppStoreExtract
Since the Apple servers are sometimes stingy with the bandwidth per download, I have a program integrated (aria2) which allows several parallel downloads (more than 5 allow Apple's server, however, not) per file. Therefore, only 5 are preset. But 20MB/sec should be possible at any time.
And now have fun with the little helper.
You can get it here:
Click




And before the question comes up: Is such a download legal?
Why not? It is directly from the Apple server. For everyone publicly available.
The idea for the tool has emerged from this:
https://github.com/maxschlapfer/MacAdminHelpers/tree/master/AppStoreExtract
Since the Apple servers are sometimes stingy with the bandwidth per download, I have a program integrated (aria2) which allows several parallel downloads (more than 5 allow Apple's server, however, not) per file. Therefore, only 5 are preset. But 20MB/sec should be possible at any time.
And now have fun with the little helper.

You can get it here:
Click




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