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this post was submitted on 28 Aug 2023
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Asklemmy
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Homelab (running home servers). Especially since I'm in Canada so I pay out the ass for shipping. Got into it purely out of interest for server administration, programming (computer science in general really) and the desire to experiment on my own hardware, but I'll have you know I have a total of 48 processing cores and 30 TB of storage running my personal fileserver and "private cloud!" Though not relying on the likes of Google for data storage and "cloud" services is a massive genuine benefit!
I also run BOINC and Folding@Home on the excess computing power in the winter, essentially "donating" it to science, which is perfect because my house only has electric baseboard heating anyway so I'm consuming the same amount of electricity for heating either way, and the electricity sources are mostly renewables where I live! The home office is toasty all winter, if kind of loud.
It doesn't have to be that expensive if you keep it modest though. I have an old Dell Optiplex (I think from 2012?) that I run a fair amount of stuff on. Things like Jellyfin (with Sonarr/Radarr/etc), a finance tracking web app, Home Assistant, a wiki, and some other miscellaneous stuff. I don't have a ton of storage though. Currently just the 512gb SSD that the OS is on. I have a couple 8TB HDDs that I want to get setup but they're a little loud for being in my bedroom.
The big thing I notice is that it can really struggle to encode media if it's not in the right format. It doesn't have much of a GPU though so that doesn't help. And more modern hardware would be much better too, but this is fine for my needs at the moment.
If this was a standard home feature in cold climates that would be awesome. There's schemes where they have farms that pipe their heat into homes, but that's a lot of extra infrastructure for something that's fundamentally easy to decentralise.
I've heard people proposing a "computational electric heater" in the past where it's just a really powerful computer that can do citizen science processing (or presumably whatever you want on it). I suppose the only issue is cost of sufficiently powerful processors that generate enough heat to actually work as a heater, as well as the thermal regulation system since semiconductors are way more temperature sensitive than a coil of resistive wire, shorter lifespan too I imagine. Though if we can overcome these issues that would be a massive technological milestone.
It would be a really good use of old computers instead of throwing them out though, could use them as space heaters in a place where you don't mind the noise and/or find a way to dampen the noise while allowing the heat to come through.
Come to think of it, I actually don't know what the compute footprint of an average first-world person is. If we moved all the racks into people's houses (in a sound-proof enclosure or something) would that be enough?