It's not official, but I have a series of blog posts on going from zero to App Store. [1] You are still required to write a fair amount of native boilerplate code to get an app working. The official Demo app [2] can get you pretty far but doesn't cover things like authentication.

I've recently become an official maintainer of the Turbo Native libraries and hope to help clean up all of this over the next few months.

[1] https://masilotti.com/turbo-ios/ [2] https://github.com/hotwired/turbo-ios/tree/main/Demo