Handler 5

gistfile1.cs

public class CoreRegistry : Registry
{
    public CoreRegistry()
    {
        Scan(cfg =>
            {
                cfg.TheCallingAssembly();
                cfg.WithDefaultConventions();
                cfg.IncludeNamespaceContainingType<Foo>();
                cfg.ConnectImplementationsToTypesClosing(typeof(IRenderer<>));
            });
    }
}

class Program
{
    static void Main(string[] args)
    {
        ObjectFactory.Initialize(init => init.AddRegistry<CoreRegistry>());
            
        var fooRenderers = ObjectFactory.GetAllInstances<IRenderer<Foo>>();
        var textHandler = fooRenderers.SingleOrDefault(x => x.GetType().Name.Contains("Text"));
        textHandler.Render(new Foo());
    }
}