I avoid local::lib. Instead, I use perlbrew. And I create nice convenient aliases, such as

latest       -> 5.36.0
5.36         -> 5.36.0
5.34         -> 5.34.1
some_project -> 5.34.1
[download]

Benefits:

My shell usually uses the latest version (perlbrew switch latest).

I can easy test against multiple versions using

cd "${PERLBREW_ROOT:-$HOME/perl5/perlbrew}"/perls
for v in 10 12 14 16 18 20 22 24 26 28 30 32 34 36; do
   echo "5.$v:"
   5.$v/bin/perl -e'...'
end
[download]

I can easy update the version of Perl used by installed scripts without changing their shebang lines.