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Cake day: June 18th, 2023

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  • Also it seems to be a good energy storage…for cases where you have irregular energy production. Create hydrogen via electrolysis using the energy surplus from wind, photovoltaic etc.
    And if you need the power, you get it back via fuel cells.

    I think I saw a documentary about the shetland islands, where they have (or had) a power surplus from wind farms mich grater than they where able to transfer to the main land.

    I guess these are the cases which make sense…but creating another supply network to bring the hydrogen fuel everywhere might not be the way to go…


  • tuhriel@infosec.pubtoSelfhosted@lemmy.worldCustom remote backup
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    5 months ago

    I have a remote backup setup at my parents, which consists of a rpi4 and an external hdd (old NAS HDD). The rpi also has a wireguard interface running. If I need to back stuff up (via a restic-rest container) I open the vpn from my side, start the container, mount/decrypt the hdd and trigger the restic update. Afterwards everything gets disconnected again.

    The rpi needs to be always on and you need to be able to forward a port to the rpi.

    The data should be secure though, as the disk is encrypted and not mounted. (You can even store the decryption key on your side of the network, so you need the vpn to be able to mount the hdd)