This is like perl's CPANTS system: The modules you upload to CPAN had their unit tests run on a variety of systems and configurations, operated by volunteers, w

This is like perl's CPANTS system: The modules you upload to CPAN had their unit tests run on a variety of systems and configurations, operated by volunteers, which would report back to the module author any failures and trace output. In retrospect, it's remarkable that it's been running as long as it has with little major incident.