This was a delightful read, tech is still cool from time to time, if you know where to look and no money is involved.
Which is another way of saying, if you have some spare time you could also spend your evening reading a blog post about decompiling Silicon Graphics' PROMs. This is fedi's bread and butter.
https://mattst88.com/blog/2026/02/08/Reverse_Engineering_the_PROM_for_the_SGI_O2/