Magento 2 : Dependent dropdowns in knockout

I am trying to override Magento/Checkout/view/frontend/web/js/view/shipping-address/list.js and Magento/Checkout/view/frontend/web/template/shipping-address/list.html.

I need to create two dropdowns here such that when one is selected, the other one gets it’s values. Like countries and provinces.

The array of values for each dropdown is created in php in config provider.

How can I create these dropdowns in knockout js? Thanks!