Or any other hardware, for that matter, but the M2 is still shipping, which counts for a lot.
I just noticed that Alex's GitHub repo is gone.
I have the firmware binaries, but I never did clone the repo.
Antus has a forked copy here: https://github.com/antuspcm/allpro
Apparently Alex made some changes a year or two after that repo was forked:
https://web.archive.org/web/20201022160 ... Net/allpro
I'm guessing those changes weren't too significant, but I'm not really sure... The fork happened around the time PCM Hammer work started, and the Allpro was already working at that point.