i have several old laptops here (2010/20)
those are running general public/retail "insyde" h2 bios, specially made for grandma (hp, toshiba, vaio, asus..)
i'd like to know if it's possible to make working a linuxbios/coreboot image for those.

as :
a/ is it possible to check if insyde bios could be replaced by a type of linuxbios?
b/ is it possible as  flashing it directly on the internal programmer?
c/ does linuxbios is able to manage a windosw boot, as some laptops have dual win/nux boot (some with bsd on it too)