For things this small I often don't even use strict and never use lexicals unless I know I need scoping for something. Of course if it turns out that it doesn't immediately work right then I put all the goodies into place and do it the right way which for me means warnings are fatal as well. Usually the warnings show what I was doing wrong, the strict just forces me to be pedantic.

use strict;
use warnings FATAL => 'all';
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