macOS Apps on Linux: SwiftUI for Linux (and AppKit, NSFoundation, etc.)

This open-source project enables existing macOS Swift projects using SwiftUI, AppKit, and NSFoundation to compile natively on Linux with GTK or Qt backends. It is designed for Swift developers and Linux enthusiasts who want to run macOS-style apps outside Apple’s ecosystem, and is a core component of the developer’s new Swift-first operating system, QuillOS. The project is interesting because it bridges the gap between macOS and Linux app development, potentially expanding Swift’s reach into cross-platform desktop environments.