> You have always been able to customize Homebrew to install at a custom prefix, e.g. ~/brew. It’s just that, when you do that...

...and then try to build something entirely sensible like Postgres, but hours of fiddling with different XCode versions and compiler flags still lead to a dead end of errors, you're stuck because you're running an unsupported configuration.

I still don't understand how the PG bottles for Mojave can be built.