• 4 Posts
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Joined 2 年前
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Cake day: 2023年6月14日

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  • Apologies for butting in here, but this brings up an IMHO very important point:

    The general public HAVE NO FUCKING CLUE that the Fediverse exists.

    If I may be so bold as to add: …and they like it that way.

    When it comes to online stuff, most people are lazy, very very ignorant and anywhere inbetween politely indifferent and openly hostile towards any attempt to educate them. They want to look at cat videos and pr0n, collect likes for their food pics and chat with their grandkids. The technology behind all that is a nuisance, not a tool.
    By and large, I think those people can’t be helped, because they’re happy with the status quo. If anything, you’re the enemy for wanting to take away their beloved Tiktok and WhatsApp.

    That means our largest efforts - self-hosting, the Fediverse, … will probably always be a bit of a parallel universe to the Internet at large.
    This is sad for humanity in general, but it makes enshittification of those services both technically more difficult and (due to its small size and enshittification-resistant populace) less commercially viable.
    And small doesn’t equal insignificant.

    So what I’m saying is, we shouldn’t see the Fediverse etc. as a replacement for everything, but as a safe space for refugees. And that’s what it excels at.


  • I run my own mail server since sometime late last century, and it’s gotten progressively more difficult over the years. Not setting up the server, that part is easy. Hardening it is a bit more work. But what’s making it nearly impossible is the big players’ anti-spam (or should that be in quotes) measures.
    My mail server checks all the boxes it should - TLS, SPF, DomainKeys, DMARC, a domain name that’s been around for decades, same hostname and IP address for years, never been on any block list, … yet still e-mails relayed by it are tagged as spam for increasingly ridiculous reasons: it’s a residential IP (actually it’s not), the PTR record doesn’t match the A/AAA record (yes, that server has multiple jobs and multiple host names - not that unusual), the domain name is suspicious (same owner and tech-c for decades, same IP and SPF records for years), … if I didn’t know better, I’d suspect that MS, Google etc. just use their spam filters to make life difficult for anyone outside their oligopoly. But that’s probably just beause I’m a cynic.



  • Home ACs are just wasteful.

    I don’t know, ours eats 400-500W to cool the entire ground floor, which is a fraction of what the solar panels produce on a sunny day, and a fraction of the surplus energy we have no choice but to sell the utility company for a pittance.
    In spring and autumn it can also heat the inside and has a COP of between 4 and 5 then, so much more efficient than a regular electric heater and probably more environmentally friendly than if the central heating would burn more oil - the circulation pump alone uses close to 400W.

    Of course we could live without it (people have lived in the house without an A/C before), but it’s much more agreeable like this, not to mention that it allows us to use the winter garden as an office in summer, which has a great view over the garden and allows us to keep an eye on the dogs. There are many much less sensible ways to use that energy than the A/C.

    Back to the battery, some EVs can be used as battery storage (vehicle to house, vehicle to grid or vehicle to load). Maybe one of those would make it more viable to have both an EV and storage space for your harvested sun? Not mavy EVs can do it at present, but it may pay to keep an eye on new models.


  • I don’t know if you’ve already heard of them or if they’re even available where you live, but if it’s the cold air that bugs you, there are water-cooled ceiling plates that work just as well as a conventional A/C. An office I used to work at had them and they were lovely. They cost quite a bit more though.

    As an alternative if you just want to avoid feeding surplus energy into the grid, what about a battery of 5-20kWh? It could store more energy than the A/C uses during the day, probably costs about the same or less, and you can use that energy at night.


  • I’m not sure “cooling degree days” are a good way to measure environmental impact. They neither represent the amount of heat pumped into the atmosphere (as the energy per degree depends on several factors such as mass and heat capacity of the cooled stuff) nor the amount of electricity used (as different A/C’s have wildly different degrees of efficiency) nor the amount of CO2 released (as that depends on how the electricity has been produced).

    The power hunger of AI has already been mentioned, so I’m not going to repeat that point, though IMHO it’s by far the bigger issue than residential cooling.

    Having said that, if you’re worried about the enviromental impact of your home, the power consumption of a reasonably efficient A/C can easily be offset by just a couple of medium-sized solar panels. Of course both the solar panels and the efficient A/C cost money that not everybody can afford to (or cares to) spend, so you’d have to take cheap and inefficient A/C’s off the market, thus effectively making chilled air a privilege that only the rich can afford. That’d probably lead to lots of heat strokes and other health problems amongst low-income families, so you’d have to weigh the environmental impact of inefficient A/C’s against another rich/poor gap.


  • It depends on what you’re looking for.

    File storage - plenty of solutions, though make sure you don’t pick one that rents their storage space from AWS or Azure.
    Personally I use Tresorit at it is end-to-end encrypted, easy to use and has a native client for almost every system I use (except for FreeBSD) in addition to the web interface. On your PC you get a network drive but can also include folders located elsewhere. It’s by no means the cheapest solutio though.

    For pictures there’s Ente. It works very well, is cross-platform, and you can even set up your own server if you’re so inclined.

    Sadly there’s no real alternative to Microsoft’s 365 offers - maybe a combination of lifetime MS Office licences or LibreOffice plus some cloud storage provider comes close.

    To replace Teams you could use a secure messenger such as Threema Work (this version comes with user management and a versatile inbuilt MDM) and your own Jitsi videochat server. We’ve replaced Teams with this combo years ago and never looked back.

    Hosted Exchange can be rented from many service providers, running on either genuine MS Exchange or a compatible third-party system such as KerioConnect.

    There are also other places such as Proton that offer several services at once.

    Or are you looking for something completely different?




  • FWIW, Android offers a one-handed mode to shrink the available screen estate so you can reach the top of the screen with your thumb. It needs to be enabled in settings once and can then be toggled by double-tapping the home button or a swiping gesture at the bottom of the screen.
    In my experience (6.1" Samsung Galaxy S2x user with slightly above-average hands) this is a good compromise between occasionally wanting to do things one-handed on the shrunken screen, and still being able to hit the right keys on the on-screen keyboard most of the time on the regular-size screen.

    Bing DuckDuckGo says the iPhone has a similar feature, though I haven’t touched one in years so can’t say anything about it.






  • I’m very glad that nothing important depends on my opinion on this and I can freely theoretize and rant, but I doubt Putin would use nukes so easily. At his core he’s still a coward, and he has to know that the ‘West’ couldn’t afford to not react to Russia nuking a European country.

    Having said that, even if the threat of Russia using nukes were very real, it shouldn’t weaken our resolve to support Ukraine and put a stop to Russia’s aggression. Because no matter the circumstances, people like Putin cannot be allowed to have any way of forcing the world to stand back and let them commit crimes at will.
    Throughout history, appeasement has never worked in anybody’s favour except the aggressor’s. If it turns out that a nuclear retaliatory strike in response to a Russian nuclear attack on another country really is what it takes to stop Putin, then so be it. It can’t be worse in the long term than letting him just take whatever he wants. In that case I just wish we could get this over with already.


  • In principle it makes sense to give various electrical things in your house a way to talk to each other. For example we have a PV system with a small battery, a boiler connected to the central oil heating with a supplemental electrical heating coil and a wallbox. Before any excess sun is pushed back into the grid, our house will first charge the battery, heat our water (saving oil) and ask the car if it would like to be topped up. Additionally there are several smart power meters to keep an eye on the grid and various parts of the house. In theory we could also tell our washing machine to prefer homemade electricity, though when we want our laundry done we want it done now, so that’s not going to happen.

    These are all systems from different manufacturers and need a LAN connection to talk to each other, and in some cases get other parts to do certain things in order for the system to work.
    In our case that network segment is isolated from the internet, though that requires some above-average skills and dedication. Most PV owners just want a nice app with lots of shiny diagrams and can’t be arsed to set up their own IT infrastructure. Most manufacturers want the dumbest possible devices connected to a cloud solution because a) it moves most things that could break (buggy software) from the customer’s premises to them (never mind what happens if/when their cloud breaks), b) it makes it very easy for their app to access all data, c) it gives them a copy of the data, and d) it lets them sell you subscriptions.

    So in a nutshell, it’s the same problem as everywhere a computer is involved - until after something really bad has happened, security is just that annoying thing that doesn’t add any value but makes things more expensive and more complicated for everyone involved.