Dynamic registration of types using assembly scanning.

dynamicregistration.cs

Assembly ConsoleAppAssembly = typeof(Program).Assembly;

var ConsoleAppTypes =
    from type in ConsoleAppAssembly.GetTypes()
    where !type.IsAbstract
    where typeof(ICustomer).IsAssignableFrom(type)
    select type;

foreach (var type in ConsoleAppTypes)
{
    services.AddTransient(typeof(ICustomer), type);
}