Grappelli-ft is a Django application which provide a compatibility layer for popular reusable Django apps that doesn't play well with Grappelli.
There is not many of them, but as soon an application modify the admin views it's almost certain that they will break in Grappelli.
There have been some discussions about where the adjustments should be made to make them work smoothly in Grapplli and the general consensus was that it didn't belong in the Grappelli code base. Moreover after some testing I found out that it would have been quite hard if not practically impossible to address this issue at the application level.
So I started to test another approach altogether; using a third party app that would provide the required templates and static files. The result is a lean application that is easy to install and maintain and which make them work fine without modifying the code of neither of Grappelli nor the reusable apps whatsoever.