Hey, sorry for the delayed response.
It depends on the type, honestly. For prosthetics, probably powered with fixed batteries/generators like most other REKT mechanical gear. For implants and such, it would depend entirely on what would best fit each particular piece of gear. Mechs are certainly generator/reactor/etc-powered. PSI tech is probably a mix of battery/generator, depending on the gear and situation. Vynkor's arm is probably not particularly anomalous, if at all. It doesn't really have much/any need to be, and anomalous materials are pretty expensive/difficult to manufacture. I'd go with something more conventional in your drawing. Batteries are considerably better than they are today too.
On a different, unasked topic...
I know it's been a long while since my last REKT post. Things have gotten a bit crazy. Some of you may remember my girlfriend, Stardust, from the original REKT mission. There's been a lot of chaos in her family over the past two and a half months. It's a very long story, but the summarized version is that she put her dad into a nursing home hoping they'd be able to take care of him, and they almost turned him into a vegetable. She's had to fight doctors and laws every step of the way trying to save him, and in the end, he's still dying anyway. At the end of December he was awake enough to hold his grandson in his arms, and just a month later he's deteriorated to being unable to swallow or even close his mouth. Dementia is a bitch. She's trying to take care of him at home (to avoid the doctors and nurses that kept trying to keep him under), but they say he only has a few days to live at this point. I'll probably be flying up there in the very near future. I don't know if I'll be staying there permanently or not. Everything is kind of up in the air right now.
All of that has been weighing on me really heavily. Then, in addition to that, I've been trying to find a job. Since Limit Theory died, I still haven't found another way to earn any appreciable amount of money, and I need a job quickly because I'm already running quite low on funds. That's been weighing on me too. There's a lot of pressure from home as well, mostly because my folks figured out I was thinking leaving and they want to put a stop to it through whatever means they can. Some of you know my home situation, others don't. It's a complicated one and I'd rather not air it here.
tl;dr: I'm not in a good headspace right now for writing REKT. I've made a lot of attempts to continue. They typically fall apart pretty quickly. It feels forced, and that's a good indicator of poor quality. You guys deserve better than that. I've sort of been hoping I/life would pull out of it and then I could get back to work on REKT without having to make any sort of announcement like this, but that hasn't happened... and I don't know when
it's going to happen. If I do end up moving up there, then with things as they are, I'll need to find an IRL job ASAP. After I have a stable job and things settle down, I may be able to continue REKT. I may be able to continue REKT before then. I really don't know. RIght now I just can't seem to get in a good mindset for writing.
I'm sorry. I don't want this to be the end of REKT. You guys know how much trouble I've been having. Please understand it's not a lack of interest on my part, or of me being bored by it, or anything of the sort. I have years worth of content planned out.
I have entire gameplay systems we haven't even tested yet. I was/am incredibly excited about seeing what you guys do on Fuhodo Station, and how the story/universe evolves. I think after I have some form of reliable income I should be able to relax enough to keep going. I just don't know when that will be. I really don't know what to do.
tl;dr(tl;dr): Shit happened, I'm trying to clean it up. REKT isn't over, I just need to get in a headspace to write, which is proving difficult because of life events. (This seems to be a common theme.)