The Testflight link is to a prototype I built last December. It uses a general solution to Apple's new SwiftUI to allow the user to build their own SwiftUI views, test them instantly without compiling, and export them to Swift code. Anything you build from the editor can be used in a real iOS project.

This prototype's main feature is that it uses real iOS Swift code as the "source of truth" for the editor. The current prototype linked mainly demonstrates a proof of concept that it is possible to dynamically generate any SwiftUI view at runtime and run it in a UIWindow. Eventually this will be integrated as part of a real iOS project's build system to automate a lot of the development process.

I also have a second project that is more improved and completes more of my vision. I'm slowly copying files over to the current Testflight prototype linked. The new one allows you to include @State vars and pass parameters to views.

I want to eventually have the app sync with a real GitHub project of an iOS app and be able to embed the editor into your build system so that you could have custom components in the editor.