7zip 23.01 built from the original sources using the Format7zF bundle

x86_64 build (built in an Apple silicon mac):

export MACOSX_DEPLOYMENT_TARGET=10.13
export CC="clang -arch x86_64"
export CXX="clang++ -arch x86_64"
make -j -f makefile.gcc

arm64 build (built in an Apple silicon mac):

export MACOSX_DEPLOYMENT_TARGET=10.13 // minimum will be 11
export CC="clang -arch arm64"
export CXX="clang++ -arch arm64"
make -j -f makefile.gcc

Universal binary created using lipo:

lipo -create -arch arm64 arm64/7z.so -arch x86_64 x86_64/7z.so -o universal/7z.so