Please add the option for the user to create their own categories.
In the file App\AppInfo\appinfo.ini> session [Details] ,
I think you could create a variable for user categories and keep the original app category to perform the updates, for example:
; so it would be displayed in the menu
UserCategory = Video
; so is the original category
Category = Music & Video
I would like to separate my apps into more categories to make it easier to find apps visually: