http://www.glx-dock.org/index.php

https://wiki.archlinux.org/index.php/Cairo-Dock
https://launchpad.net/cairo-dock/

aur
    cairo-dock

2017
https://www.lifewire.com/setting-up-using-cairo-dock-4054034

plugins
https://github.com/Cairo-Dock/cairo-dock-plug-ins

themes
aur
    cairo-dock-themes
https://www.deviantart.com/customization/skins/?q=Cairo+Dock