Although the C# Language, [Standard ECMA-334](https://www.ecma-international.org/publications/standards/Ecma-334.htm), and the Common Language Infrastructure (CLI), [Standard ECMA-335](https://www.ecma-international.org/publications/standards/Ecma-335.htm), specifications are ECMA standards since 2002 the adaption of both in software development on Linux, particularly openSUSE is quite slow. A successful implementation of both ECMA standards was achieved with the [Mono Project](http://www.mono-project.com/) back in 2004. The [Unity Game Engine](https://unity.com/) based on Mono is one of the best real-time 3D development platforms.

Over 15 years later, the situation has been improved massively. Not only is Microsoft a [Platinum member of the Linux Foundation](https://www.linuxfoundation.org/press-release/microsoft-fortifies-commitment-to-open-source-becomes-linux-foundation-platinum-member) and a [sponsor of the Open Source Initiative (OSI)](https://opensource.org/node/901) the majority of their source code is hosted on [GitHub](https://github.com/microsoft/). Most prominent examples are [the official home of .NET](https://github.com/microsoft/dotnet) and the much appreciated text editor [Visual Studio Code](https://github.com/microsoft/vscode). And Unity has various [open-source repositories](https://docs.unity3d.com/Manual/OpenSourceRepositories.html).

In this workshop you will learn how to setup your openSUSE workstation for software development using .NET Core, to write your code in C# using the open source, cross platform editor Visual Studio Code, and how to package and deploy your implementation as either standalone applications or containerized environments on Docker and/or Kubernetes. We are going to realize a small, instant collaboration application based on a service-oriented architecture (SOA) with server-side back-end, web client, and desktop client. The outcome of the workshop shall be that all attendees succeed to complete the implementation and will be able to join a common collaboration space.

Full source code in C# based on .NET Core will be hosted on GitHub and made available to the public.

If time allows we are going to have a peak into Unity (3D game development) and Xamarin (mobile development) to conclude the workshop.