gistfile1.txt

dotnet tool install --global dotnet-ef

dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
dotnet add package Microsoft.EntityFrameworkCore.Design
dotnet add package Microsoft.EntityFrameworkCore.Sqlite
dotnet add package Microsoft.EntityFrameworkCore.Tools

Todo.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace APIConBD.Entities;

[Table("Todos")]
public partial class Todo
{
    [Key]
    public int Id { get; set; }
    
    public string? Name { get; set; }
    
    public int? IsCompleted { get; set; }
}

TododbContext.cs

using System;
using System.Collections.Generic;
using APIConBD.Entities;
using Microsoft.EntityFrameworkCore;

namespace APIConBD.Context;

public partial class TodoDbContext : DbContext
{
    public TodoDbContext()
    {
    }

    public TodoDbContext(DbContextOptions<TodoDbContext> options)
        : base(options)
    {
    }

    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=identifier.sqlite");

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Todo>(entity =>
        {
            entity.Property(e =>  e.Id).ValueGeneratedNever();
            entity.Property(e => e.IsCompleted).HasDefaultValue(0);
        });
        
        OnModelCreatingPartial(modelBuilder);
    }

    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
}