My understanding of name servers are where is your domain going to be recorded. For instance, my domain may be something.com but the name server tells the browsers to send the web traffic to 50.50.50.50 where the server lives.
I actually used Sync's link handler (went to lemmy on FireFox and open a link in Sync using the share menu) then I could change the setting from there. So I didn't have to recreate my profiles.
Remember when they donated one pi for every one sold?