Flutter widget

Hi, please look at the attached video.

I want to have something similar in my app, and I wonder if you'd be interested.

The main idea is a screen with a list that leads to filters.
I need a generic widget that can do the following:

- Radio select
- Nested Radio select (like the categories in the video)
- If selected, the value will appear in the root list item, and in every parent of the selected item, like in the video.
- Checkbox select (multiple selection)
- An option to easily add another type (for example, the price range)

* The work shouldn't have a specific design, and the components will have a builder function so I can customize it for my app.
* All of it will be inside a bottom sheet modal, so not it should not push routes to the main navigator.
* when clicking the back button via Android, it should properly go back if the user is inside an item.

The app's name in the video is Vinted if you want to check it.

Would you be interested in this? If so, please state:
- How will you handle state
- Your GitHub link. I would like to check out your coding style