If you think you need a server, check out the Auralic, when I bought 1 many years ago, it sounded better than any Aurender or Lumin I had demoed. Also, DS Lightning software from Auralic is much better than the software from Lumin or Aurender. I got rid of the Auralic years ago and went with Roon with no need for a 3rd party server and the sq is better.
If you want a cheap server that delivers the sq and you get to use the DS Lightning software, look for a used Auralic Aries mini. Mine cost me < $500 when I bought mine new. I also sold that years ago.With Roon, I can use any number of endpoint devices