Thank you :)

what about Vulkan instead GL? Should be more performant and use less battery. Especially if it is meant to also work on mobile.

Yes, I believe I could create a renderer using Vulkan without much difficulty. Initially, I chose GLES2 for compatibility reasons.

is Louvre drawing those window decorations?

Yes, only the decorations with macOS style.

there is some overlap with https://github.com/winft/theseus-ship - any idea for a collaboration there?

Well, that’s a compositor (which uses COMO) and Louvre is a library, so sure, I could collaborate with COMO.

there seems to be a company behind, while I didn’t investigate, are there plans for further development that you would publish, is there a way to influence those plans (suggestions, donations, some other way)

Cuarzo Software is just a name I use to release my open source projects, it’s not a real company. Everyone is welcome to suggest ideas or contribute to the development of these projects, and I genuinely appreciate that.

any plans to make a shell around it?

If time allows me, of course.

it is mentioned that this is a library, but obviously there is a working compositor. Regardless if this is a technology demonstrator, would it be possible to publish a compositor with decent theming and a few distinct layer modes (classic windows with taskbar, windows 8 like, Mac, gnome, ubuntu). I guess many smaller Linux DEs would consider it then…

Absolutely, you’re free to build a compositor however you like, whether it’s in 2D, 3D, or any other style. Essentially, it’s akin to creating a game, with window applications acting as textures.

how does it compare to kwin/mutter?

Those are compositors and Louvre is just a library, so I don’t know how to compare them. As you noticed, the compositor in the video is just one of the examples I made with Louvre.