great stuff … but really, in a perfect world we shouldn’t have to be loading one route and redirecting to another.
this is a layout issue now, not a route issue.
Instead, the approach I’ve been experimenting with is add a Categories column in a Bars left sidebar on Latest, which is absent on mobile.
So you load Latest on both devices, but the Categories column is simply missing on mobile 
the solution is open source, but a bit unfinished and not documented. If you take a look at my github account, you might be able to find the pieces 