On Sat, 17 Jun 2023 04:14:28 GMT, Element Green wrote:

I'm pleased to announce a working GtkD port to Gtk-4 with the TestWindow demo. This is very much work in progress, but already in fairly good shape. The primary purpose of this post is to get feedback on the future direction of this work, especially since there apparently hasn't been much activity with this effort in a while and I'm not yet acquainted with the authors of this project.

Did you make a PR to merge your code into the GtkD?