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aladmit/cosmic-overlay

Gentoo overlay with Cosmic DE

cosmic-overlay

Gentoo overlay with next generation
COSMIC DE. This DE is in
beta, but already usable for daily driving.

Caution

Overlay supports only systemd profiles. Contributions are welcome!

Install

Add and sync overlay

eselect repository add cosmic-overlay git https://github.com/aladmit/cosmic-overlay.git
emaint sync -r cosmic-overlay

Install COSMIC DE

Ebuilds follow releases from cosmic-epoch

emerge -av cosmic-base/cosmic

After installation COSMIC should be available to choose in you login
manager(Wayland only).

COSMIC login manager

COSMIC has it's own login manager cosmic-greeter working on top of greetd.
Disable all other login managers like GDM and enable cosmic-greeter.

systemctl enable cosmic-greeter-daemon
systemctl enable cosmic-greeter

Known issues

Flatpak apps can't open files and directories

Issue: xdg-desktop-portal-cosmic#102

XDG portal doesn't support org.freedesktop.portal.OpenURI interface. Install
gtk and nautilus as a fallback.

sudo emerge -av sys-apps/xdg-desktop-portal-gtk gnome-base/nautilus

No icons in Files

Issue: cosmic-files#61

It happens when cosmic renders using opengl/gles. Force vulkan render by
setting systemd-wide environment variable.

/etc/env.d/99local

WGPU_BACKEND=vulkan

Then run sudo env-update and restart cosmic.

Languages

Shell100.0%

Contributors

GNU General Public License v3.0
Created July 17, 2024
Updated November 14, 2025