meihuak not with my extension unfortunately, it can only change the hard-coded text in the route definition, any ID or slug is still inserted at the end by Flarum.
I might be able to create a feature to "remove" a prefix for specific paths, I'll put this on my ideas list. It should be possible, if the admin manually chooses URLs and which resource they belong to, it's possible to check for any conflict with existing paths. A complete prefix deletion for all tags / FoF pages is too complicated as it would require handling conflicts when new resources are being created.
