Unfortunately, on most hardware, SoF is not actually open enough that users can control their own firmware. Most OEMs required that the loaded SoF binaries have

Unfortunately, on most hardware, SoF is not actually open enough that users can control their own firmware. Most OEMs required that the loaded SoF binaries have Intel signatures. On a small amount of other hardware (notably Chromebooks IIRC), a signature from the "community" publicly released private key is required instead. https://github.com/thesofproject/sof/issues/5814 https://github.com/thesofproject/sof/issues/5814