KDEPim started to heavily rely on QtWebEngine. I think it would be better, if an abstraction, say KWebPage were introduced, which could be built against QtWebEngine, QtWebKit, and what ever will be the hot-new-thing two years down the line.
There are multiple reasons I think this would be a good idea
- FreeBSD&Co do not have WebEngine -- which blocks us from providing up to date KDEPim. , and possibly more applications every new KDE Applications release cycle.
- Who knows how long WebEngine is the thing
- Less code duplications (every application seems to write more or less the same code to restrict the capabilities of WebEngine)
- Some people may have [security] concerns with being required to use google code to run KDE
 I invite people to glance at the chromium sources, before telling me just port WebEngine to FreeBSD :)