Richard Crowley devstructure at Duck Duck Go. Richard Crowley: Dependency management for grown ups — Richard Crowley’s blog. Sprouting a package manager seems to be a rite of passage for programming languages. Perl has CPAN. PHP has PEAR and PECL. Python has setuptools/distribute and PyPI. Ruby has RubyGems. Node.js has npm. DevStructure Blog - faster dev, smarter ops.