Work together on a project about app restrictions and features that require parents to control their children's use

I am a developer engaged in iOS development for more than 10 years. Recently, I want to make a function that allows parents to control the use time of the app to limit the excessive use of the app by their children. Now I have completed the first phase of the function

The frameworks used are:

FamilyControls

ManagedSettings

DeviceActivity

The first stage:

You can select apps on your phone and then limit them.

Interested can talk together, I write code very fast, but now need to spend a lot of time to design the product how to better use for users