[1] https://github.com/tedivm/Stash/blob/master/.travis.yml
"Continuous Integration for the Open Source Community"
"Travis CI has run 757,465 tests for 10,844 open-source projects to date, including Ruby, Rails, Rubinius, Rubygems, Bundler, Leiningen, Parrot, Symfony, ... If you use any of these then you benefit from Travis CI."
Ah, the first payment is actually one of the guys testing if the payment process works on production; amusing.