is it possible the show the total sum of topic views for a category in the homepage ?
Currently the homepage shows only the sum of topics and posts, but not of the total views, as views are shown only on a thread-level.
As it currently stands, category is hard coded into NodeBB. It will require a lot of work to make the paths custom, but it is a planned feature. So, you will either have to just not change the path or get somebody to change all of the hard coded areas that need to be notified in the site code.