Turn any website into a standalone desktop app on COSMIC desktop.

cosmic-webapp demo

• Interactive TUI powered by gum
• Isolated browser profile per webapp (cookies, sessions, data stay separate)
• Custom icon URL support (e.g. from dashboardicons.com) with automatic favicon fallback
• Proper Wayland app_id generation for COSMIC dock integration
• Chromium and Brave browser support
• Standard .desktop files — webapps appear in the COSMIC app launcher

• gum — interactive terminal UI
• chromium or brave — browser engine
• wget — favicon download
• imagemagick (optional) — .ico to .png conversion

git clone https://github.com/Ahmosys/cosmic-webapp.git
cd cosmic-webapp
chmod +x install.sh
./install.sh

cosmic-webapp

# Create a webapp
cosmic-webapp create "YouTube" "https://youtube.com" chromium Network
# Create a webapp with a custom icon
cosmic-webapp create "Home Assistant" "https://ha.example.com" chromium Network "https://cdn.jsdelivr.net/gh/homarr-labs/dashboard-icons/png/home-assistant.png"
# List installed webapps
cosmic-webapp list
# Remove a webapp
cosmic-webapp remove

./uninstall.sh

Each webapp gets:

• A .desktop file in ~/.local/share/applications/
• An icon in ~/.local/share/icons/webapps/
• An isolated browser profile in ~/.local/share/chromium-webapps/
• A Wayland app_id matching Chromium's algorithm (chrome-<url>-Default) for proper window management and dock pinning

This project was developed with the assistance of Claude (Anthropic).

MIT