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+Borepin
+===
+
+# Building 
+
+## On Windows
+1. Install Visual Studio 2019
+    [download Visual Studio](https://visualstudio.microsoft.com/de/)
+    * with Xamarin
+    * with UWP
+    * with .NET Desktop
+2. Install GTKSharp for Windows
+    [download GTKSharp](https://www.mono-project.com/download/stable/#download-win)
+4. Clone Borepin
+    [download Borepin](https://gitlab.com/fabinfra/fabaccess/client)
+6. Load Borepin
+7. Build Borepin
+
+If Step 5. Build Borepin is failing because of GTKSharp, it could help to restart your PC.
+
+## Build GTK Project
+1. Install mono, gtk-sharp, msbuild, nuget
+    1.1 Debian based
+    ```shell
+    $ apt install mono-complete, gtk-sharp2, nuget
+    ```
+    1.2 ArchLinux based
+    ```shell
+    $ pacman -S mono, mono-msbuild, gtk-sharp-2, nuget
+    ```
+2. Clone Borepin
+    ```shell
+    $ git clone https://gitlab.com/fabinfra/fabaccess/client.git
+    ```
+    
+3. Build Borepin
+    ```shell
+    $ cd client
+    $ msbuild -t:Borepin_GTK
+    ```
+4. Run Borepin
+    ```shell
+    $ mono ./Borepin/Borepin.GTK/bin/Debug/Borepin.GTK.exe
+    ```
+You can also use Rider or monodevelop as an IDE for development on Borepin
+
+## Testing
+We use [NUnit](https://nunit.org/) for testing.