It’s not hard, I’m a total beginner and for me it’s harder to setup a USB Compac F Miner so it’s easy with a Antminer S9, flashing the BraiinsOS+ with a SD-Card, login to ur S9 over the IP and set the max Power to 100W for 1 board and then use only 1 hashing board, at the end you will have 1.1Th/s for about 110W, it’s not really hot and it’s not loud with only 1 Board, you will hear only the PSU, not the Miner