/boot/efi/EFI/grub/grub.conf

grub.conf

set timeout=1
set default=0

insmod part_gpt
insmod fat
insmod efi_gop
insmod efi_uga
insmod cryptodisk
insmod luks
insmod zfs

# make sure boot filesystem has compression off!

menuentry "Gentoo 5.4.28" {
    cryptomount -u e7991358c6794c099a7affb6c4a1922d
    linux (crypto0)/gentoo/os/boot/@/5.4.28-gentoo/vmlinuz root=zfs:AUTO rd.luks.uuid=e79913 rd.luks.allow-discards rd.luks.crypttab=0 rd.info rd.debug rd.shell
    initrd (crypto0)/gentoo/os/boot/@/5.4.28-gentoo/initrd.dracut
}