init

helloapp/HelloappContext.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+
+namespace helloapp;
+
+public partial class HelloappContext : DbContext
+{
+    public HelloappContext()
+    {
+    }
+
+    public HelloappContext(DbContextOptions<HelloappContext> options)
+        : base(options)
+    {
+    }
+
+    public virtual DbSet<User> Users { get; set; }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+#warning To protect potentially sensitive information in your connection string, you should move it out of source code. You can avoid scaffolding the connection string by using the Name= syntax to read it from configuration - see https://go.microsoft.com/fwlink/?linkid=2131148. For more guidance on storing connection strings, see https://go.microsoft.com/fwlink/?LinkId=723263.
+        => optionsBuilder.UseSqlite("Data Source=./helloapp.db");
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}

helloapp/Program.cs

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+using helloapp;
+ 
+using (HelloappContext db = new HelloappContext())
+{
+    // получаем объекты из бд и выводим на консоль
+    var users = db.Users.ToList();
+    Console.WriteLine("Список объектов:");
+    foreach (User u in users)
+    {
+        Console.WriteLine($"{u.Id}.{u.Name} - {u.Age}");
+    }
+}

helloapp/User.cs

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+using System;
+using System.Collections.Generic;
+
+namespace helloapp;
+
+public partial class User
+{
+    public int Id { get; set; }
+
+    public string? Name { get; set; }
+
+    public int Age { get; set; }
+}

helloapp/helloapp.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.10">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.10" />
+  </ItemGroup>
+
+</Project>