macOS Mojave Homebrew: is restoring support for prebuilt binaries worth effort?

"drop support" seems strong. Brew supports Mojave, it just doesn't have bottles for everything and won't make bottles for new things. Bottles are an optimisation surely?

I think supporting macOS is challenging for any package manager, but Homebrew is in a tougher position than most w/r/t this decision. Their relatively tight coupling with the base system shrinks their dependency trees (in terms of the count of their own packages in each tree), but it makes supporting multiple versions of macOS more work than it might otherwise be.

(Isolating packages from the base system is also work, of course, and it increases your space/download/compile requirements for getting the first user package installed. It's just that once you've done it, it spares you some of the 'if darwin is version XYZ' stuff.)

Or, as you'd said in a personal email to a Homebrew maintainer, "F*ck you, Homebrew": https://twitter.com/MikeMcQuaid/status/1453326455010697225

AFAIK there's quite high chance that Apple may issue a security update from time to time even for older OSes if it's really important.