In theory, yes. It's a Turing-complete language with quite nice C FFI, so you can call into Gtk just fine. In practice, uhm, no. Apple's branding of SwiftUI an

In theory, yes. It's a Turing-complete language with quite nice C FFI, so you can call into Gtk just fine. In practice, uhm, no. Apple's branding of SwiftUI and Swift is a bit of a double-edged sword, I think. The former is a highly proprietary, undocumented (but beautifully engineered) walled garden that only works on Apple hardware, and only recent OS versions at that. The latter is open source and purports to be a general-purpose, cross platform language, comparable in scope to C++, C#, Go, Rust, Kotlin, and other comparable contenders. They have only themselves to blame if some of the perception of the former rubs off when people think about the latter.