Creating a single executable file for .net framework

app.fsproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net472</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Compile Include="Program.fs" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="ilmerge" Version="3.0.41" />
    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
  </ItemGroup>
  <Target Name="ILMerge">
    <!-- the ILMergePath property points to the location of ILMerge.exe console application -->
    <Exec Command="$(ILMergeConsolePath)   /out:$(ProjectDir)\path_to_save\$(TargetFileName) $(ProjectDir)\bin\Release\net472\$(TargetFileName) ^
    $(ProjectDir)\bin\Release\net472\*.dll ^
    /wildcards" />
  </Target>
</Project>