It wouldn’t cost Homebrew folks much to add a flag to skip dependency version checking which would solve most issues with using older macOS. But they don’t want to, and have closed all issues asking for it as wontfix.
Is this something you could add as a hot fix yourself and submit a PR for?
> But they don’t want to
Seems like good enough a reason for them not to do it.
Their tooling is open-source, surely the few people still using unmaintained versions of macOS can create a `LegacyHomeBrew/brew` repository with patches for old macOS versions? It would also be a good place to stuff all the patches and workarounds that may be necessary to support old macOS versions.