Roslyn, the Microsoft's next-gen open source C# compiler, is going to revolutionize .NET ecosystem. Fork it and add new features to C# language or create a DSL on top of C#. Use it to build diagnostic tools and extensions for your company. Or use it as an API to create Visual Studio extensions for your personal or company use. Or create custom runtime for yourself. Maybe you can use it to create a scripting environment or create your own IDE from scratch. Or you can build lots of other cool things using this powerful tool. In this session you will learn what is Roslyn, how to leverage its power and how consume its API. Building tools of all kind was now easier than ever before.