@awvwgk I'm running macOS Monterey and would be glad to add it here if you can provide instructions. I'm not familiar with writing a homebrew formula and so don't know what the big_sur- and catalina-specific lines do or whether it's worthwhile to add a monterey line. To be clear, I'm not experiencing any problems on Monterey. I just thought this might be a good place for me to start contributing.

@awvwgk would it make sense to move or fork this repository to the fortran-lang? I'm now tapping this formula in an installation script and it might be nice to place the formula somewhere that could encourage community support and adoption.