 
     self.localServerPort = CFMessagePortCreateLocal(
       kCFAllocatorDefault,
-      self.localServerName.CFStr,
+      self.localServerName.cfStr,
       { _, msgid, data, info in
         return info?
           .load(as: MessageHandler.self)


private extension String {

  var CFStr: CFString {
    return self as NSString
  }
}

  }

  private func establishNvimConnection() {
    self.remoteServerPort = CFMessagePortCreateRemote(kCFAllocatorDefault, self.remoteServerName.cfStr)
    self.sendMessage(msgId: .agentReady, data: [self.initialWidth, self.initialHeight].data())
  }

