Is there a doc that describes how to onboard a new Apple OS (for build or test) in this repo?

We've started writing such docs to make ourselves more efficient and make such tasks more easily repeatable.

Here are some other efforts:

• Add doc on OS onboarding runtime#112026
• Create an OS onboarding doc aspnetcore#60281
• Source build and VMR should move to CentOS Stream 10 main source-build#4890
• Android OS onboarding doc runtime#113443