Hi HN! Since we launched Bitrig [1], we've gotten questions about how it's able to run dynamically generated Swift code. I wrote up this post to answer that. Let me know if you want to know more about any aspects of it.

1: https://news.ycombinator.com/item?id=45041185

Your website won't let me scroll to see the content on Firefox Android

This is fascinating work, amazing job to the team!

Does SwiftUI have properties that uniquely make this type of interpreted system possible, or could it also use UIKit under the hood? On the surface, it seems like UIKit might be more difficult since you’d probably need to parse all of the obj-c header files in addition to the .swiftinterface.

Very cool stuff, excited to follow along how you all develop the product!

Could you use this to support hot module replacement? Replacing a SwiftUI view in a live app without restarting the process?

Swift can already be used in REPL mode, not sure if it's accurate to say Swift is a strictly compiled language that a interpreter was developed for (see 'swift' command line executable). Seems misleading that this is not mentioned anywhere in the article.