lcarlos What value do I place on Admin/Home Page/Custom to open the page "http://localhost/flarum/d/1-rules-the-f-rum". I've tried "/d/1-rules-the-f-rum" and get the error 404. It would be the same problem that occurs with the avatar when the Flarum is installed in subfolders?
Franz Hmm, just tested this locally. I'm having the same problem... Feel free to create an issue on GitHub about this.