Thanks @BanzaiMan.
Sounds like this … MacOS build fails because of homebrew "bundle" unknown command - #14 by nottheoilrig
Ah, OK, thanks.
Sorry about missing that link during search. Google has turned into such a mediocre search engine. They take my search terms and treats them as suggestions…
I guess Google delivers they highest paying ads based on some [partial] collection of my search terms. Everything else is secondary.