Itoo X Framework: Virtual App Inventor environment for Background execution

[Taifun]

@Patryk_F

Is there any universal way to add Itoo X Framework, without knowing if the user who uses my extension will also add the itoo extension or not.

Yes
See the following open source extension

App Inventor Extensions: Notification Listener | Pura Vida Apps

See also Notification Listener (powered by itoox-wrapper) and Itoo

Taifun