I found this a very thought-provoking read:

"What might a general purpose computing machine look like, one that's designed to last over a hundred years, one that would even be useful in some sort of post apocalyptic environment?"

What hardware and software choices/tradeoffs would be optimal to build a computer designed for resilience and longevity? Would it run Linux or BSD or something else entirely?

Following links led me to the concept of "permacomputing" which seems like a whole new rabbit hole of discovery. :-)