Hi Plumf,
I’m running Yunohost only local on an Raspi. IP-Address is given by my Router automatically. I know how to configure a Subdomain (wikijs.yunohost.local) and to install Wiki.js in this Subdomain. Installation works. But I could not reach the Subdomain. I logged in as a user and select Wiki.js which points to wikijs.yunohost.local. The Result is “Server not found”. I think I had to do something else in my local Network. The Solution of anonyme18 did not work for me. Sorry for maybe silly questions. - Thunderfox