MonoGame.Samples/Peer2PeerSample/Core/Peer2PeerSample.Core.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <RootNamespace>PeerToPeer</RootNamespace>
    <AssemblyName>Peer2PeerSample.Core</AssemblyName>
    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
    <Nullable>disable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="MonoGame.Framework.DesktopGL" Version="3.8.*" />
    <ProjectReference Include="..\..\MonoGame.Xna.Framework.Net\MonoGame.Xna.Framework.Net.csproj" />
  </ItemGroup>
</Project>