Running AMD openSIL + Coreboot On The First Available Ryzen AM5 Motherboard
Brief
Earlier this year the 3mdeb firmware consulting firm ported AMD openSIL CPU open-source silicon initialization library and Coreboot to an EPYC motherboard, the Gigabyte MZ33-AR1. Their next feat now achieved is bringing AMD openSIL and Coreboot to a desktop AMD Ryzen motherboard with their downstream Dasharo firmware solution.
I have been running this alternative firmware on the MSI PRO B850P WiFi motherboard and it's been working out and performing well as an alternative to the closed-up motherboard firmware.