MonoGame.Samples/Input/Platforms/Android/Input.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net9.0-android</TargetFramework>
    <OutputType>Exe</OutputType>
    <AssemblyName>InputSample.Android</AssemblyName>
    <RootNamespace>InputSample.Android</RootNamespace>
    <AndroidManifest>AndroidManifest.xml</AndroidManifest>
    <SupportedOSPlatformVersion>28</SupportedOSPlatformVersion>
    <AndroidApplication>True</AndroidApplication>
  </PropertyGroup>
  <ItemGroup>
    <ProjectReference Include="..\..\Core\Input.Core.csproj" />
    <PackageReference Include="MonoGame.Framework.Android" Version="3.8.*" />
    <PackageReference Include="MonoGame.Content.Builder.Task" Version="3.8.*" />
  </ItemGroup>

  <ItemGroup>
    <Content Include="..\..\Core\Content\**\*.xnb" Link="Content\%(RecursiveDir)%(Filename)%(Extension)">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </Content>
  </ItemGroup>
</Project>