SwiftUI has an incremental compiler with interactive workflows.

woodruffw · 2026-08-02T19:54:21.000000Z

Rust has an incremental compiler. And TMU SwiftUI’s live preview is essentially a very rough approximation of what the actual build would produce; it’s not a suitable replacement for a real build when developing a non-trivial UI.

pjmlp · 2026-08-02T20:06:14.000000Z

The experiences still fails short of XCode or Playground, hence why Slint has its own scripting language.

woodruffw · 2026-08-02T20:21:21.000000Z

Sure, I don't disagree. It's just not clear to me that developers actually index that heavily on hot reloading to begin with.

pjmlp · 2026-08-03T05:17:44.000000Z

Devs doing graphics and game development care so much, that there are companies like Live++ selling hot reloading tools for C++.

Like, devs actually pay for having hot reloading.