in reply to Can I get cpanm to skip re-installation of a module when pointing directly to a remote .tgz file?
Things of interest
https://metacpan.org/dist/App-cpanminus/view/lib/App/cpanminus/fatscript.pm#-save-dists
https://metacpan.org/dist/App-cpanminus/view/lib/App/cpanminus/fatscript.pm#-mirror-index
https://metacpan.org/dist/App-cpanminus/view/lib/App/cpanminus/fatscript.pm#-skip-satisfied
i think without a mirror index there is no version checking
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