Open source old version of BraiinsOS that doesn't take 2% of your hash, for SD card:
braiins-os_am1-s9_sd_2020-09-14-0-b9c02886-20.0..>
https://feeds.braiins-os.org/20.09.1/
The "live tuning" of BraiinsOS+ is mostly a gimmick imo. Rather have an open source software running 24/7 ;)