Writing Dynamics C# Console App With Only Two Dependent Packages

using System;
using Microsoft.PowerPlatform.Dataverse.Client;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Extensions.Configuration;

namespace DataverseClientCRUD
{
    class Program
    {
        static void Main(string[] args)
        {
            var builder = new ConfigurationBuilder()
                     .AddJsonFile("appsettings.json", true, true);
            IConfiguration config = builder.Build();
            string connectionString = config["ConnectionStrings:MyCRMServer"];
            using var serviceClient = new ServiceClient(connectionString);

            CRUD(serviceClient);
        }

        private static void CRUD(ServiceClient serviceClient)
        {
            //Create
            Console.WriteLine("**** Create ****");
            Entity account = new Entity("account");
            account["name"] = "ABC Corporation";
            account.Id = serviceClient.Create(account);

            //Read
            Console.WriteLine("**** Read ****");
            Entity readAccount = serviceClient.Retrieve(
                entityName: account.LogicalName,
                id: account.Id,
                columnSet: new ColumnSet("name")
            );
            Console.WriteLine("Retrieved account name: {0}", readAccount["name"]);

            //Update
            Console.WriteLine("**** Update ****");
            account["name"] = "ABC Corp";
            serviceClient.Update(account);

            //Delete
            Console.WriteLine("**** Delete ****");
            serviceClient.Delete(account.LogicalName, account.Id);
            serviceClient.Dispose();
        }
    }
}