Much as people complain about Perl, it is the language which I use when I want to have something which will run 10-20 years from now.
I recently wrote a consistency checker for file archives (so that I know when bitrot sets in) in Perl, precisely because I want it to be usable for a long time (https://github.com/jwr/ccheck).
Very happy to see a path forward for Perl 5.32.