How to integrate pfx certification for a console application when it builds for publishing use ?

//project solution is not Web

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

  <PropertyGroup>
    <TargetFramework>.netcoreapp3.1</TargetFramework>
    <!--Other Properties-->
  </PropertyGroup>

</Project>

//program.cs does not have startup.cs file
//how could I set up pfx certificate for this console app to enable user’s machine to use this published console application

 public static async Task<int> Main(string[] args)
{
Console.WriteLine("Hello, your are enable to use this console app, you passed .pfx certification");
}