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Server for a boat (self.selfhosted)

submitted 4 months ago by sailingbythelee to c/selfhosted

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Good day, friends. Since catching the self-hosting bug, I've set up a couple of Proxmox home servers with a bunch of services I enjoy.

Now I'd like to set up a server and local network on my sailboat so I can self-host servarr, pihole, and other services while traveling. The tricky part is that everything on the boat is 12V and I would rather not use an inverter, if possible. Also, it needs to be ultra-low power so I can leave it on at all times and not to deplete my batteries too much.

Criteria:

ultra-low power
Small form factor
runs on 12V
10 TB of storage plus ability to make full local backup
Capable of hosting servarr, audiobookshelf, freshrss, etc. via docker
HDMI output
Full local mirror/backup of the entire file system, including the media library.
We will have two laptops and two Android phones to access the server, so the server doesn't need to run a desktop environment.

I'll have a mobile wifi router and a cellular signal booster (or maybe Starlink eventually) for internet access. Since internet bandwidth will be limited and expensive while traveling, I don't want to have to re-download a massive media llibrary if the storage media fail. Thus, I want the media library to be mirrored or fully backed up or synced locally.

What hardware and Linux distro would you use in this situation?

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[–] lemmylommy 4 points 4 months ago

I would get a laptop as well in that situation. Just make sure it is one that supports setting the charging threshold. Having it on all the time will kill the battery quickly if it keeps charging from 95 to 100%. It’s much better to keep it below 80%, which should still give enough “UPS time”.

The battery will also not electrically protect the motherboard from voltage swings. So get a good power adapter that can handle the voltages.