This is one of the main things I'm working on. For now, what does work is a webview-type of GUI application - another thing I'm very focused on.
Let me put it like this:
- Just open the REPL (Arturo's terminal) - Write: webview "Hello World!"
Although super-minimal, you already have a Webview-based GUI app with something in it. It's a starting point :)
Btw, have you managed to compile it on NetBSD? (It should run fine, I think, though I haven't tried it yet...)