In part 2 of this series I looked at the "shop window" for rubygems and cpan, and you could see a massive difference in focus both in terms of what was highlighted on the main page and the kind of documentation provided when you looked further (TL;DR is rubygems is frictionless and encouraging with few warnings or rules mentioned up front, while cpan involves poking around fusty old usenet style FAQs full of warnings, expectations and saying to wait for a week or so…