https://boingboing.net/2019/02/20/alt-firmware.html content found at O'Reilly (couldn't find anything there).
Boy, they managed to get most of it wrong!
1) ML does not replace Canon's OS. It runs along with it and Canon menus and actions are accessible, too.
2) It runs not only from SD but all flash cards you can insert (apart from SD-to-CF adapters which are crap and not supported)
3) The audio options described are for Digic 4 cams only (minus 50D, 1100D)
4) Oh, they actually got something right ... white-balance, exposure presets, overlays and open source.
Wait, haven't we been here before? Déjà-vu big time ...
Apart from this ... Anyone attracted by BoingBoing, please read before asking:
- No, ML does not run on recent Canon cams running Digic 6, 7 or 8 processors
- No, we can't say when it's ready. We have no clue, no release date or schedule to follow.
- Yes, we know you want it! So do we: Supporting not by offering money (we will ask if necessary) but by offering your coding skills (optimum: C and assembler for embedded devices, preferable ARM architecture), your time for testing code and nightly builds and experimental builds. Or go through our rather rudimental camera help proposal for errors and enhancements (link in signature).