There is an OpenRA mod called Combined Arms. It is incredible! Been a C&C fan from the beginning, but prefer the originals. Combined arms gives me the feel of the originals with the features of the latter versions. The AI can really be brutal if you suck like me, unless you turn it down.
Very impressive. My first thought is, why? Just use a Pi with Retro-pi. However, you wanted to be down at the metal. That's quite a challenge, particularly when you work alone.
I'm always impressed when someone is skilled at both hardware and software to make a finished product. It's Woz-like.
While this article is interesting, it should make clear that basic necessities for life MUST be maintained. Everybody needs food and water to live by ordinary means, all medical technology aside. However, life support is not required and is considered extraordinary.
Quality of life is something to achieve with the inclusion that these basic needs are met. If not, the quality of life is a personal opinion and can be interpreted in any way, from conservative, to ridiculous.
Lots of fun.