Using private apis in nuget packages

Since we don't provide any guarantees about private APIs being stable whatsoever, you need to pin the exact version of Avalonia in your package dependencies, like this:

<!-- enable private APIs -->
<AvaloniaAccessUnstablePrivateApis>true</AvaloniaAccessUnstablePrivateApis>

<!-- Mind to specify the exact Avalonia version needed for your package to work -->
<PackageReference Include="Avalonia" Version="[11.0.0]" />

To proceed with private API usage, add this to your project file:

<Avalonia_I_Want_To_Use_Private_Apis_In_Nuget_Package_And_Promise_To_Pin_The_Exact_Avalonia_Version_In_Package_Dependency>true</Avalonia_I_Want_To_Use_Private_Apis_In_Nuget_Package_And_Promise_To_Pin_The_Exact_Avalonia_Version_In_Package_Dependency>