This whole reply feels like nothing was read from initial message. It offers no answer, no solution, not even aknowledgement. "I use it like this specifically and it works for me, so I won't provide or do anything additional" is what the reply sounds like and that's why I'm bit confused and baffled I guess?
Yes, obviously it is easier to use and control everything from same machine, but I already said I literally cannot use it on my desktop, because bluetooth is so bad that it drops connection if I sit down on my chair, meaning I have to stand up while playing, which is definitely not easier to control. This is not a problem with other games where they simply allow specifying where the intiface server is running either via setting or config file, just obviously default is localhost.
Or just use controllers haptics I'm already using to play the game to begin with.