Homebrew and Bash on Mac

 Fans of gfortran (that's the Fortran I've used most in my life) on Macs say you should install Homebrew first, then it's easy.

Homebrew recommends installing BASH before installing Homebrew.

BASH recommends installing Homebrew before BASH.

This is the kind of issue that drove me from open source systems to Mac.

Fortunately, there's now a pkg installer from Homebrew for Apple Silicon macs.

(I wonder if they could have worked out a command that would work in zshell.)

Update: The solution is that there's a pkg available with sh.