ASIC Firmware ASIC manufacturers ship stock firmware (BMMiner, etc.). Custom firmware (Braiins OS+, Vnish, BUMa) often improves efficiency, adds features, or enables Stratum V2. Stock firmware - Bitmain: BMMiner / Antminer firmware. - MicroBT: Whatsminer firmware. - Canaan: AvalonMiner firmware. Pros: works out of box, manufacturer support. Cons: limited tuning, possibly built-in backdoors / mining for manufacturer's pool, no SV2. Braiins OS+ Open-source firmware by Braiins (Slush Pool team): - Compatible with: Antminer S9, S17, S19 series, others. - Adds: Stratum V2, autotuning, dashboard, m…