Full code: https://codeberg.org/bctnry/lang3/src/commit/904e4f87acf399b8f0c739e4015a3231d7752629/main_demo.rkt
Accompanying note: https://sebastian.graphics/blog/notes-on-rewriting-systems-part-1.html

Hi everyone. I've read the original article a few weeks ago and had
been thinking about it till now. I've summarized my opinions here:

https://sebastian.graphics/blog/truly-forever-computers.html

TL;DR: If one needs the machine to be truly "forever" like a
mechanical typewriter, the machine itself needs to be as fixable as
a mechanical typewriter, thus it can't be made from semiconductors
because its manufacturing is way out of league for common amateurs.
A result to this limitation is to regress into 1960s style mini-
computers based on mechanical relays.

Of course I understand this is way too much regression, such a machine
would be way to primitive for your liking, and this isn't nearly as