@@ -221,9 +221,10 @@ in {
221221 default = config.networking.hostName;
222222 description = ''
223223 The domain name of the server, with optional explicit port.
224− This is used by remote servers to connect to this server,
225− e.g. matrix.org, localhost:8080, etc.
224+ This is used by remote servers to look up the server address.
226225 This is also the last part of your UserID.
226+
227+ The server_name cannot be changed later so it is important to configure this correctly before you start Synapse.
227228 '';
228229 };
229230 public_baseurl = mkOption {