Laravel nova settings page

Hello,

I'm new to Laravel Nova. I already watched course about Laravel Nova, and I know how to use Resources, makes fields, etc ...

Now, I would like to create settings page in Nova but I don't really know approach to do that. Someone can guide me? I have setting page in custom tool / Vue, but I would like to use Nova field with validation

Exemple of settings page that I would like to create: https://github.com/bakerkretzmar/nova-settings-tool