Though the requirement on 5.14 makes it less portable.

Then i suggest not using any of my modules. I tend to support only supported Perl versions so i can use fairly recent Perl features (especially sub-signatures). I'm not going to ditch all the advancements of the last decade or two, just because someone wants to run an outdated, unsupported, insecure version of Perl that hasn't been maintained since the release of Minecraft 1.0...