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Joined 3 months ago
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Cake day: April 4th, 2025

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  • I’m much more in favour of good insulation rather than AC. Mostly because it consumes a huge amount of energy and it can contribute to UHI.

    I think it is not as either-or as many commenters seem to perceive it. AC is needed specifically for extended very hot periods to bring temperatures down when it stays hot during the night. These are still rare in Western Europe.

    Conversely, better insulation will drastically lower the power demand and energy costs of AC, and will also reduce the time it is needed at all. Insulation is also a mandatory requirement for heat pumps which we absolutely need in Central, Western and Eastern Europe if we don’t want to give up an Climate change and accept that our civilization will die.

    I think for the short-term it might be better for European cities to provide safe AC-cooled spaces im walkable distances - this is faster to deploy and cheaper than retrofit all housing. The most endangered people are old citizens and many of them don’t have that much spare money.

    Insulation will also help Europe to survive better if we have an AMOC collapse which could bring all of more cold, dry, and hot extremes.

    Plus if AC and heat pumps are combined and integrated, soil heat exchangers can be used to reduce heating of the surrounding neighborhood which is another problem of AC.


  • On a more serious note… yes, nation-state attacks on infrastructure like xz-utils do exist, and as Stuxnet has shown, they are also being used against high-profile targets like Iranian nuclear faculities..

    Such attacks against infrastructure are to be taken serious. But the xz-utils case and Stuxnet also have shown a few things:

    • Such attacks are incredibly time-consuming and expensive to mount.
    • Once sn attacker hits such a target, they have blown their powder - they can’t continue to use it.
    • The xz-utils case shows that open source’s many-eyed principle works astoundingly well.
    • xz-utils also confirms that in open source software, you can close a detected backdoor within hours - even if the maintainer of the software does not want that, since you can fork it in seconds. (And using Rust only makes this easier).

    So, this topic of foreign state-actor backdoors is less a thing for individuals to worry about. (I agree that lawmakers of democratic states should absolutely worry about this, here a good article be Bert Hubert on the topic.)

    However what is actually dangerous is the erosion of privacy and the rising amount of mandated surveillance. But if one is worried about that, one should not use closed-source software in the first place.




  • I was talking with my brother who was supporting our mother on her Windows laptop. He was using TeamViewer for years but that company now requires to subscribe to an expensive license on top of this is a really security- and privacy-sensitive kind of access.

    His main requirements are that the new solution are:

    • safe
    • very easy to use for the supported person
    • better works without VPN, public ports etc though this isn’t mandatory.

    So, it needs to be easy. I was first thinking in VNC but while I have been using TigerVNC for years in Home Office, this looks not exactly as easy as TeamViewer.

    Last week was talking with our stand-in admin at work who turns out to know Linux well. He said he has very good experiences with RustDesk, uses it for home office and also for remotely accessing Windows machines.

    What are your experiences?