what framework/techstack are you using? i'd love to see something built on top of GNUstep which is close to what OSX is originally based on. (don't know how much of that is still found in Snow Leopard)
To stay competitive and iterate fast I'm adding a high-level JS/CSS API on top of Wayland, think AppKit + SwiftUI. If you look over my shoulder it might look like I'm making a webapp, but on a custom browser.