COSMIC Store - Omarchy

A graphical Flatpak app store for Omarchy (Arch Linux + Hyprland), powered by System76's COSMIC Store.

Browse and install thousands of Flatpak applications through a clean, modern GUI — with full Hyprland integration so installed apps appear in your app launcher.

Requirements

• OS: Omarchy (Arch Linux)
• Compositor: Hyprland
• AUR Helper: yay or paru (Omarchy ships with yay)

Quick Start

git clone https://github.com/28allday/COSMIC-Store-Omarchy.git
cd COSMIC-Store-Omarchy
chmod +x cosmic.sh
./cosmic.sh

After installation, log out and back in so the environment variables take effect, then search for "COSMIC Store" in your app launcher.

What It Does

1. Installs Dependencies

Package	Purpose
flatpak	Sandboxed app distribution system (like Snap but open)
xdg-desktop-portal	D-Bus bridge between sandboxed apps and the desktop
xdg-desktop-portal-gtk	GTK fallback portal for file dialogs
xdg-desktop-portal-hyprland	Hyprland-specific portal (screen sharing, window picking)
desktop-file-utils	App menu integration tools
base-devel, git	Build tools for compiling COSMIC Store from AUR

2. Configures Flathub

Adds the Flathub repository at both system and user level, giving you access to thousands of applications.

3. Installs COSMIC Store from AUR

Builds and installs cosmic-store-git — System76's app store built with the COSMIC toolkit. It provides a graphical interface for browsing, installing, and managing Flatpak apps.

4. Creates Hyprland Wrapper

COSMIC Store needs to know it's running under Hyprland to use the correct desktop portal. The wrapper script sets XDG_CURRENT_DESKTOP=Hyprland before launching the store.

5. Makes Flatpak Apps Visible in Launcher

Flatpak installs .desktop files in non-standard locations. The script:

• Adds Flatpak export directories to XDG_DATA_DIRS
• Sets environment variables in both systemd and Hyprland config
• Symlinks Flatpak .desktop files into ~/.local/share/applications/

This ensures installed Flatpak apps appear in Walker/Elephant (Omarchy's app launchers).

6. Restarts Portal Services

Restarts the XDG desktop portal daemons so they pick up the new Hyprland configuration immediately.

Files Created

Path	Purpose
/usr/local/bin/cosmic-store-hypr	Wrapper script (sets Hyprland environment)
~/.local/share/applications/com.system76.CosmicStore.desktop	User desktop entry
~/.config/environment.d/flatpak.conf	Flatpak environment variables

Usage

Opening COSMIC Store

Search for "COSMIC Store" in your app launcher, or run:

cosmic-store-hypr

Installing Apps via Command Line

# Search for an app
flatpak search firefox

# Install an app
flatpak install flathub org.mozilla.firefox

# Run an app
flatpak run org.mozilla.firefox

# List installed apps
flatpak list

Making New Flatpak Apps Appear in Launcher

After installing a Flatpak app via the command line, you may need to symlink its desktop file:

# Symlink all Flatpak desktop files
for d in ~/.local/share/flatpak/exports/share/applications /var/lib/flatpak/exports/share/applications; do
  [ -d "$d" ] && find "$d" -maxdepth 1 -name '*.desktop' -exec ln -sf {} ~/.local/share/applications/ \;
done

Apps installed through COSMIC Store should appear automatically.

Troubleshooting

COSMIC Store can't launch installed apps

Make sure the wrapper is being used:

grep "Exec" ~/.local/share/applications/com.system76.CosmicStore.desktop

Should show: Exec=/usr/local/bin/cosmic-store-hypr

Flatpak apps don't appear in app launcher

1. Log out and back in (environment variables need a session restart)
2. Check XDG_DATA_DIRS includes Flatpak paths:

   echo $XDG_DATA_DIRS | tr ':' '\n' | grep flatpak
   

3. Re-run the symlink step:

   for d in ~/.local/share/flatpak/exports/share/applications /var/lib/flatpak/exports/share/applications; do
     [ -d "$d" ] && find "$d" -maxdepth 1 -name '*.desktop' -exec ln -sf {} ~/.local/share/applications/ \;
   done
   

COSMIC Store won't build from AUR

• Make sure base-devel and git are installed
• Try rebuilding yay first: cd /tmp && git clone https://aur.archlinux.org/yay.git && cd yay && makepkg -si
• Check if Rust is installed (COSMIC is written in Rust): pacman -S rustup && rustup default stable

Uninstalling

# Remove COSMIC Store
yay -Rns cosmic-store-git

# Remove wrapper and desktop entry
sudo rm -f /usr/local/bin/cosmic-store-hypr
rm -f ~/.local/share/applications/com.system76.CosmicStore.desktop

# Remove environment config
rm -f ~/.config/environment.d/flatpak.conf

# Optionally remove Flatpak entirely
sudo pacman -Rns flatpak

# Log out and back in to apply changes

Credits

• Omarchy - The Arch Linux distribution this was built for
• System76 - COSMIC Store and desktop environment
• Flatpak - Sandboxed application framework
• Flathub - Flatpak app repository
• Hyprland - Wayland compositor

License

This project is provided as-is for the Omarchy community.