runtime hooks

src/nu/Window.zig

@@ -21,7 +21,7 @@ pub const Options = struct {
     x11_instance_name: [*:0]const u8 = "floating_window",
 };
 
-var bus: Bus = undefined;
+var bus: Bus = undefined; // todo bus should probably move to engine.
 pub var handle: *c.GLFWwindow = undefined;
 var unfocused_rate: f32 = 1.0 / 20.0;