goslife Seems like @headwind-mdm is willing to do the work if there is some direction as to what is needed.
I don't speak for the GrapheneOS project, but I think there has been a little bit of direction, which I think so far is without result. My vague general sense is that it would be necessary to generate a fair amount of feedback, and then there would need to be a fair amount of further development. So I don't think the situation is that this is almost done and needs just a bit of encouragement. At a wild guess, it might be only 35% done.