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this post was submitted on 08 Sep 2026
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Idk if libreboot is coreboot+ a specific payload.
But in edk2 which is used in dasharo you can set some UEFI boot targets and disable usb boot yes, of course also set a firmware password.
There is also HEADS which is another payload of coreboot and can use a hardware security key to need to approve boot drives. Makes most sense with very stable distros like Qubes though as you dont constantly re-sign everything