For this project, I need somebody who can build a Ruby on Rails gem to extend Spree Commerce. I need the plugin to do the following:
-Allow authenticated users to subscribe to a bundle of products (products of their choosing).
-Allow users to modify which products they subscribe to on the frontend.
-Show all subscription orders in the backend each month when orders are to be fulfilled.
-Integrate with Stripe or BrainTree recurring billing.
I need this to work with the latest version of Rails and the latest version of Spree.