Mining test on Mac mini M1...about 1.5kH/s by 8threads, at 31W.
This performance is not native, just tried on Rosetta2 environment... very promising, I feel.
https://pbs.twimg.com/media/EnvZXnzVgAEo713?format=png&name=large

cpuminer source: yespowerR16 branch of https://github.com/ohashi3d/cpuminer-yescrpwr
Some modifications are needed for building on Mac environment, like below:
$ mkdir m4
$ cp /usr/local/opt/curl/share/aclocal/libcurl.m4 m4
$ echo ACLOCAL_AMFLAGS = -I m4 >> Makefile.am
$ sed -i -e "s/INCLUDES/AM_CPPFLAGS/g" Makefile.am
$ sed -i -e "s/aclocal/aclocal -I m4/g" autogen.sh

Enjoy at your own risk