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The regular popos shell is built on top of gnome, but I believe COSMIC is a brand new DE built with rust/js.

> https://hyprland.org/ is where it's at

also, thanks for sharing this.

do you know what js engine do they use?

We do not use JavaScript. It is Rust from top to bottom. The native applets are written with iced/libcosmic, and the same is true of the shell components in the compositor.

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