> Typically, an initramfs is not needed, but may be necessary for:
Mounting an encrypted, logical, or otherwise special root partition
Providing a minimalistic rescue shell (if something goes wrong)
Customize the boot process (e.g., print a welcome message)
Load modules necessary to boot (e.g., third party storage drivers)
Anything the kernel can't do that's usually handled in user space
https://wiki.gentoo.org/wiki/Custom_Initramfs
Then just drop the kernel image onto your EFI partition, and you have a single-binary Linux/emacs system!