Directory.Build.targets

<Project>
  <Import Project="Sdk.targets" Sdk="Microsoft.DotNet.Arcade.Sdk" />
  
  <PropertyGroup Label="Resx settings">
    <GenerateResxSource Condition="$(GenerateResxSource) == ''">true</GenerateResxSource>
    <GenerateResxSourceEmitFormatMethods Condition="$(GenerateResxSourceEmitFormatMethods) == ''">true</GenerateResxSourceEmitFormatMethods>
  </PropertyGroup>

  <Target Name="AddInternalsVisibleTo" BeforeTargets="CoreCompile">
    <ItemGroup Condition="'@(InternalsVisibleTo->Count())' &gt; 0">
      <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
        <_Parameter1>%(InternalsVisibleTo.Identity), PublicKey=$(PublicKey)</_Parameter1>
      </AssemblyAttribute>
    </ItemGroup>
  </Target>
</Project>