Isn’t it enough to have a Class.h file as company of the Ruby.rb file like:// AppDelegate.h#import <Foundation/Foundation.h>@interface AppDelegate : NSWindowController {IBOutlet NSWindow *window;IBOutlet NSButton *homeButton;. . . etc etc}- (IBAction)loadStore:(id)sender;- (IBAction)sortContacts:(id)sender;. . . etc etc@endAt least the IB is triggered by this but I admit i still don't have a big app running on Mavericks :)cheers, Rob