X.Y.Z.Sources nuget package

X.Y.Z.Sources.csproj

<Project>

  <Import Project="Sdk.props" Sdk="Microsoft.NET.Sdk" />

  <PropertyGroup>
    <TargetFramework>netstandard1.0</TargetFramework>
    <IsPackable>true</IsPackable>
    <IncludeBuildOutput>false</IncludeBuildOutput>
    <ContentTargetFolders>contentFiles</ContentTargetFolders>
    <DisableImplicitFrameworkReferences>true</DisableImplicitFrameworkReferences>
    <GenerateAssemblyInfo>false</GenerateAssemblyInfo> 
    <GenerateTargetFrameworkAttribute>false</GenerateTargetFrameworkAttribute>
    <NoWarn>CS8021</NoWarn>
    <NoBuild>true</NoBuild>
    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
    <SuppressDependenciesWhenPacking>true</SuppressDependenciesWhenPacking>
  </PropertyGroup>

  <ItemGroup>
    <Compile Update="@(Compile)">
      <Pack>true</Pack>
      <PackagePath>$(ContentTargetFolders)\cs\netstandard1.0\$(PackageId)\%(RecursiveDir)\</PackagePath>
    </Compile>
    <EmbeddedResource Update="@(EmbeddedResource)">
      <Pack>true</Pack>
      <PackagePath>$(ContentTargetFolders)\any\any\$(PackageId)\%(RecursiveDir)\</PackagePath>
    </EmbeddedResource>
  </ItemGroup>

  <ItemGroup>
    <PackageReference Remove="@(PackageReference)" />
  </ItemGroup>

  <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk" />

  <Target Name="Compile" />
  <Target Name="CopyFilesToOutputDirectory" />

</Project>

Gist explanation: https://medium.com/@attilah/source-code-only-nuget-packages-8f34a8fb4738