GTK is a library set of libraries used to create UI, base of the well known Gnome desktop.
GTK4 shard is a binding for these libraries based on information given by gobject introspection, but this is too much information for a release anouncement.
So, I think that’s the first version I can tell someone: “Hey, try this for a desktop app in Crystal”, and that’s it, version 0.9.0 was just released
No, I wasn’t, seems a very interesting project, I don’t know how it would behave with more complex projects and widget hierarchies… anyway it’s possible to write something similar on top of crystal/gtk4 shard.