Kehyeedra/Kehyeedra3/ApplicationDbContextFactory.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;
using Pomelo.EntityFrameworkCore.MySql.Infrastructure;
using Pomelo.EntityFrameworkCore.MySql.Storage;
using System;
using System.Collections.Generic;
using System.Text;
using dotenv.net;
using System.IO;

namespace Kehyeedra3
{
    class ApplicationDbContextFactory : IDesignTimeDbContextFactory<ApplicationDbContext>
    {
        public ApplicationDbContext CreateDbContext(string[] args = null)
        {
            DotEnv.Config(filePath: Path.Combine(AppContext.BaseDirectory, ".env"));

            var optionsBuilder = new DbContextOptionsBuilder<ApplicationDbContext>();

            optionsBuilder.UseMySql(Environment.GetEnvironmentVariable("KEHYEEDRA_CONNSTR"), 
                x => { x.EnableRetryOnFailure(); x.CharSet(CharSet.Utf8Mb4); });

            return new ApplicationDbContext(optionsBuilder.Options);
        }
    }
}