If only you could make a smartphone case with a physical keyboard that can be programmed as shortcuts. For example, when launching YouTube and Messenger, press on a single button and it will launch those apps at the same time. Or, program it to say a greeting on social media apps automatically. And maybe you could buy an item on Amazon at the press of a button!
I know there are existing apps that can do this, but physical buttons are much more tactile and provide you with easier access. Moreover, virtual keyboards just gobble up the screen.
For fun, why not include a selfie camera so you can remove those annoying notches, punch holes, and teardrops! And since it’s a case, it provides protection from drops, scratches, with water-proofing and wireless charging!