How to set AppBar for ScaffoldPage

[Ares Andrew]

In my situation, I only require a single page without a NavigationView. However, I am unable to find a property that allows me to position my window buttons using an AppBar in ScaffoldPage.scrollable.
I am aware of the existence of the header property, but it does not appear to be ideal:

[Bruno D'Luka]

Hello! You can create a NavigationView without a pane! The app bar is not independent and depends on the navigation view.

[Ares Andrew]

Thank you!