Hi i just entered a domain name without reading to much about what to do, yeah shame one me…
But how to change it into nohost.me for example just to test thing out.
thanks !
To “book” a domain name ended by .nohost.me, you have to indicate it at the postinstallation step.
Please reinstall to try it out 
Ok i reinstalled it but… you can’t choose youname.nohost.me it gives errors
you can only choose nohost.me and nothing in fornt of it.
so that’s strange because here https://yunohost.org/#/postinstall it is stated otherwise