Bash is not a common denominator anywhere except Linux. Just write what you want as POSIX shell and it will work in a lot of places. You already have to deal w

Bash is not a common denominator anywhere except Linux. Just write what you want as POSIX shell and it will work in a lot of places. You already have to deal with platform-specific differences even (nay - especially!) across Linux with things like apt vs yum vs dnf vs pacman vs Nix. One more is really a non-issue.