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Here is boot into emacs implemented by making emacs the Linux init program, "Emacs standing alone on a Linux Kernel" https://www.informatimago.com/linux/emacs-

• cyphar 8y ago
  This is different to what I was talking about -- your link is about running Emacs as pid1 on Linux (cool, but not particularly innovative -- if you run Emacs in a Docker container that is effectively what you're doing). I was talking about booting from UEFI into Emacs, without the Linux kernel at all. Given that there is a glibc port for UEFI that uses just BootServices it would be very possible to do this.
  • jonjacky 8y ago
    Ah yes, I see. Something like this has been done with Python. It was surprisingly difficult, I thought. Python without an operating system https://news.ycombinator.com/item?id=9453677 https://news.ycombinator.com/item?id=9453677 Porting Python to run without an OS https://www.youtube.com/watch?v=bYQ_lq5dcvM https://www.youtube.com/watch?v=bYQ_lq5dcvM