Man, I can't get higher than 8mh/s on my m1 Pro with multithreaded rust. I already got 11 zeros, but I am now more interested in beating at least 20mh/s.

Time to comb through this code :D

yeah I wonder what you could be doing differently. feel free to link it and I'll point out anything that could be the issue.

I just started on a metal implementation and it's at 320MH/s

Turning on the asm feature of sha2 has me on 230MH/s.