Everything I could find … after not getting what I wanted at https://flutter.dev/docs/cookbook/design/tabs
https://stackoverflow.com/questions/45588300/can-i-use-a-tabbar-and-tabbarview-as-an-in-page-widget
Create Tab inside a body widget in the flutter
https://stackoverflow.com/questions/60561552/multiple-scaffolds-for-each-page-inside-a-flutter-app