Travis CI is a continuous integration service for Linux and macOS. I test my public Perl 6 modules on it and those modules often have the same Travis configuration. This repository versions that common file.
You can get the latest version of the file (say, in a shell script):
$ curl -O https://raw.githubusercontent.com/briandfoy/brians_perl6_modules_travis_config/master/.travis.yml
I have similar repositories:
And sometimes I write about these things: