• 5 Posts
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Joined 3 years ago
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Cake day: June 17th, 2023

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  • The rule of thumb with servers is

    • Performance
    • Reliability
    • Power usage
    • Noise
    • Size

    The trick is to remember you don’t actually need much performance. A home server isn’t generally a powerful machine. What matters is that it is always there.

    A raspberry pi would actually make a wonderful server. It’s power efficient, small and quiet, with enough grunt to do most jobs. Unfortunately, it falls down on reliability. Arm servers seem more prone to issues than x64 servers. Pis also seems particularly crash prone. Crashing every 3-6 months isn’t an issue for most pi usages. When it’s running your smart home, it’s a pain in the arse.

    I eventually settled on a intel NUC system. It’s a proper computer (no HDD on usb etc), with a very low power draw. It also seems particularly stable. Mine has done several years at this point, without a crash.

    Bigger servers are only needed when you have too much demand for a low powered option, or need specialist capabilities 24/7. Very few home labbers will need one, in practice.

    It’s also worth noting that you can slave a powerful, but power hungry system, to a smaller, efficient one. Only power it on when a highly demanding task requires sorting.


  • There is always the option for gorilla node deployment. They need very little power, so solar etc is an option, and the hardware is relatively cheap.

    A cheap drone could easily place nodes in hard to reach locations e.g. top of telephone poles. You now have an anonymous node that is trivial to connect to but harder to disable.

    It’s far from perfect, but a good option.

    I also now have the image of a node built into a drone. Then it bolting, like a startled sparrow, when they try to remove it…



  • Protests serve 2 purposes. They act to spread a message and connect people.

    They also act as a warning. We are willing to invest effort in this to change things. If you don’t change, some of us will put the effort into other methods, some of which are… far more unpleasant for you. We also act as support to the people doing this.

    The latter is important. For a good example, look at the Northern Ireland troubles.














  • The problem isn’t when it’s done correctly, it’s when it gets half arsed by cheap Chinese suppliers. A lot of the corner cuts are not easily detectable to layman consumers.

    The biggest is matching protection. The solar needs to shut down within ms of an RCD going (RCDs take 30ms). Otherwise it could continue to shock a victim, or risk a fire.

    The most insidious would be to stop any with an “Off grid” mode. Grid workers already fear generators being backfed during a power cut. It turns cold lines live, with no warning. Having a switch to get your lights and TV working again would be far too tempting to too many people.

    Speaking of the grid. One of the biggest issues is grid instability. Solar can do offline VERY quickly. Micro solar is even worse for this. Without major upgrades on the grid, it’s akin to having a small child “helping” you move heavy furniture up some stairs. In theory you’re better off. In practice you spend more resources countering the chaos than you save.

    My personal view is that all new homes should have power feed in capabilities baked in at the mains entry point. It can then have proper cutoff/cutover capabilities, from fully approved parts. No chance of Chinese cheap crap killing people. It also puts the breakers back inline with the power. Home solar (balcony or rooftop), battery backup, generators all can be fed in via a known safe method.