Comment by giancarlostoro

I really wasn't! Glad you found it, I think the Github repository is even older if it's the project I saw a while back. All of that is possible because of GDNative, which ties together native code back to Godot itself so you don't have to recompile the whole engine just to bind native code to it.

Adding a link to their GitHub since to me is looks like the dub website is slow / down?

Link to D bindings for Godot:

https://github.com/GodotNativeTools/godot-d

Edit: Looks like they got Rust and C++ bindings in their umbrella too:

https://github.com/GodotNativeTools