Описание тега fluid-mac-app-engine
Fluid is an engine for turning web sites into Mac applications. (For the XML-based templating system, use the "Fluid" tag.)
Fluid lets you create a "Real Mac App" (or "Fluid App") out of any website or web application, effectively turning your favorite web apps into OS X desktop apps.
See the Fluid home page.
This is not to be confused with the XML-based templating system for TYPO3. See fluid for that.