https://www.fsf.org/campaigns/free-bios.html
Campaign for Free BIOS — Free Software Foundation — Working together for free software
for freecampaignbiossoftwarefoundation
https://www.powrupgaming.com/collections/mod-kits/products/copy-of-sega-saturn-region-free-bios-dip-va0
Sega Saturn Region Free Bios (DIP VA0)
Region Free Bios Chip for Sega Saturn. Enables you to play imports from other Regions
region free biossega saturndip
https://canoeboot.org/docs/install/
Canoeboot – Install Canoeboot Free BIOS/UEFI boot firmware
Learn how to install Canoeboot free/opensource BIOS/UEFI boot firmware on various laptop, desktop and server motherboards. Boot payloads like GNU GRUB.
install freecanoebootbiosuefifirmware
https://libreboot.org/
Libreboot – Free and Open Source BIOS/UEFI boot firmware
Libreboot is a free/opensource BIOS/UEFI boot firmware distribution based on coreboot with GNU boot loader GRUB, SeaBIOS and U-Boot, for booting Linux/BSD.
free and open sourcelibrebootbiosuefifirmware