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@odd Aha, the world's first semordnilap operating system? 🤪 I'm no stranger to writing bare-metal software (that runs without an OS), but I've never taken on the task of writing an entire operating system myself.
I certainly have entertained the idea of doing it, though. Just for fun. A rabbit hole a fair share of programmers seem to fall into. SerenityOS is my favorite project by fellow Swede Andreas Kling.