Have you explored the `$HOMEBREW_NO_AUTO_UPDATE=1` env var? https://github.com/Homebrew/brew/blob/2.7.7/docs/Manpage.md#environment https://github.com/Homebrew/

Have you explored the `$HOMEBREW_NO_AUTO_UPDATE=1` env var? https://github.com/Homebrew/brew/blob/2.7.7/docs/Manpage.md#environment https://github.com/Homebrew/brew/blob/2.7.7/docs/Manpage.md#... I can't tell if that would influence the behavior you're experiencing, but it sounds like it makes the brew command more deterministic