First modern coreboot server platform
9esec.io
9esec.io
https://mullvad.net/en/blog/2019/8/7/open-source-firmware-fu...
The 2016 OpenBMC presentation I'm watching now says that it's REST+D-Bus, and no IPMI, which actually seems like a good idea to me...
https://github.com/openbmc/ipmitool
so as long as your provisioning tool uses ipmitool, it could work.
Still interesting work though
But if a system supported it through reverse engineering or otherwise I don't see why running coreboot without blobs would be possible (see very old hardware for example)