Carbon Fin in the dock
I just put Carbon Fin in the dock on my Mac with this AppleScript:
tell application Safari
open location https://cfoutliner.appspot.com
(Put quotation marks around Safari and around the location address above. They don't show properly when I place them in this message.)
Save as a script, paste the Carbon Fin logo over the tiny generic logo in the upper left hand corner of the "get info" box for the saved script and then drag it into the dock.
Color Box Media commented
You can also use an app called Fluid, it's free. http://fluidapp.com/ You can also pay $5 to upgrade it and add the "app" to the Status Bar. I've used it for many years for several "non-native" Mac Apps & used it with Outliner for the past 4 years.