public class Book
{
    public Book(string title, long isbn, int pages)
        : this(Guid.Empty, title, isbn, pages)
    {
    }
    
    private Book(Guid id, string title, long isbn, int pages)
    {
        Id = id;
        Title = title;
        Isbn = isbn;
        Pages = pages;
    }

    public Guid Id { get; }
    public string Title { get; set; }
    public long Isbn { get; }
    public int Pages { get; set; }

    //public Library? Library { get; set; }
}

Unhandled exception. System.ArgumentException: Expression must be writeable (Parameter 'left')
   at System.Linq.Expressions.Expression.RequiresCanWrite(Expression expression, String paramName)
   at System.Linq.Expressions.Expression.Assign(Expression left, Expression right)
   at System.Linq.Expressions.Expression.MakeBinary(ExpressionType binaryType, Expression left, Expression right, Boolean liftToNull, MethodInfo method, LambdaExpression conversion)
   at System.Linq.Expressions.ExpressionVisitor.VisitBinary(BinaryExpression node)
   at MongoDB.EntityFrameworkCore.Query.Visitors.ProjectionBindingRemovingExpressionVisitor.VisitBinary(BinaryExpression binaryExpression)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Linq.Expressions.ExpressionVisitor.VisitSwitchCase(SwitchCase node)
   at System.Linq.Expressions.ExpressionVisitor.Visit[T](ReadOnlyCollection`1 nodes, Func`2 elementVisitor)
   at System.Linq.Expressions.ExpressionVisitor.VisitSwitch(SwitchExpression node)
   at System.Linq.Expressions.ExpressionVisitor.VisitBinary(BinaryExpression node)
   at MongoDB.EntityFrameworkCore.Query.Visitors.ProjectionBindingRemovingExpressionVisitor.VisitBinary(BinaryExpression binaryExpression)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Linq.Expressions.ExpressionVisitor.VisitConditional(ConditionalExpression node)
   at System.Linq.Expressions.ExpressionVisitor.VisitConditional(ConditionalExpression node)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Linq.Expressions.ExpressionVisitor.VisitConditional(ConditionalExpression node)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at MongoDB.EntityFrameworkCore.Query.Visitors.MongoShapedQueryCompilingExpressionVisitor.VisitShapedQuery(ShapedQueryExpression shapedQueryExpression)
   at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.VisitExtension(Expression extensionExpression)
   at MongoDB.EntityFrameworkCore.Query.MongoQueryCompilationContext.CreateQueryExecutor[TResult](Expression originalQuery)
   at Microsoft.EntityFrameworkCore.Storage.Database.CompileQuery[TResult](Expression query, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.CompileQueryCore[TResult](IDatabase database, Expression query, IModel model, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass11_0`1.<ExecuteCore>b__0()
   at Microsoft.EntityFrameworkCore.Query.Internal.CompiledQueryCache.GetOrAddQuery[TResult](Object cacheKey, Func`1 compiler)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteCore[TResult](Expression query, Boolean async, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute[TResult](Expression query)
   at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.Execute[TResult](Expression expression)
   at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryable`1.GetEnumerator()
   at Microsoft.EntityFrameworkCore.Internal.InternalDbSet`1.System.Collections.Generic.IEnumerable<TEntity>.GetEnumerator()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Program.<Main>$(String[] args) in /Users/arthur.vickers/code/OnYourOwnNow/OnYourOwnNow/Program.cs:line 37

using var context = new LibraryContext();
context.Database.EnsureDeleted();
context.Database.EnsureCreated();

context.AddRange(
    new Book("The Lord of the Rings", 9788845292613, 1000));

context.SaveChanges();

var books = context.Books.ToList();
foreach (var book in books)
{
    Console.WriteLine($"{book.Id}: {book.Title} ({book.Isbn}) {book.Pages} pages.");
}

public class LibraryContext : DbContext
{
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) 
        => optionsBuilder
            //.UseSqlite("DataSource = db.dat")
            .UseMongoDB("mongodb://localhost:27017", "Library1")
            .EnableSensitiveDataLogging()
            .LogTo(Console.WriteLine, LogLevel.Information);

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Book>(b =>
        {
            b.Property(e => e.Id);
            b.Property(e => e.Isbn);
        });
    }
    
    public DbSet<Book> Books => Set<Book>();
}

public class Book
{
    public Book(string title, long isbn, int pages)
        : this(Guid.Empty, title, isbn, pages)
    {
    }
    
    private Book(Guid id, string title, long isbn, int pages)
    {
        Id = id;
        Title = title;
        Isbn = isbn;
        Pages = pages;
    }

    public Guid Id { get; }
    public string Title { get; set; }
    public long Isbn { get; }
    public int Pages { get; set; }

    //public Library? Library { get; set; }
}