[vzaliva]

It sounds from the page that it is Android-source-code specific. Why? Could this work with any source code base?

[everlier]

If my understanding is correct, this only makes sense for codebases that do not fit in memory of a largest build box an organisation can run

[rs186]

I think the page itself answers your question pretty well.

[serbancon]

I posted a longer answer to a similar question above, if you're interested. Thanks!