Build and testing a commercial software is easy. You can use a big infrastructure for CI and commercial tools to test your complete stack. And if you want to test your application on different mobile devices - well, that's easy! You company will buy them for you (Zwinkern) But what can you do if you want to work on Open Source? You can not spend thousands of Dollars for a free time project and without a given infrastructure several build, test and deployment steps are just impossible… Imagine a world in that testing, building or deploying of open source software is at least as easy as for commercial projects. Maybe it's just easier and the infrastructure is better than in most $$$ stacks. I will introduce you to this world and show several tools and services that will help you to get the best out of your open source project - without producing any costs but with a lot of fun, cool new technologies and the freedom of choose.