Here's some feedback if you want...

I read that landing page twice, and clicked on each project, and then started clicking the libraries. I still am not sure what exactly the citadel is about. My best guess is it's a repository of libraries with respective projects, but the projects I looked through were all just empty repos.

And I'm a coder, most people won't click through on any of this.

I would say, you should have a mission statement / goals top center. Links to where the active dev is happening, and links to demos or videos of demos in action. And a latest updates, milestones, or something like this. Who is this being built for? Is it a product for other devs, to use these libs?