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Joined 1 year ago
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Cake day: July 10th, 2023

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  • One notable software business professional interviewed by RBC thought that the West’s decision would “adversely affect the life of the developer community, mutual trust within it, and therefore the quality of the product.”

    It was Russia and other autocracies etc. that diminished the trust by actually financing developers for multiple years to first earn trust and finally introduce backdoors into open source software, as demonstrated by the XZ utils backdoor.

    In open source projects, maintainers need to have some initial trust into each contributor, and let this trust naturally grow with time and contributions. They cannot perform intensive background checks on everyone before accepting a patch.

    While it is easier to uncover backdoors in open source software, there is no good way to defend and prevent against this kind of attack in this type of development process. All open source projects can do is trying to take away some trust from people within higher risk groups. This of course might lead to discrimination.


  • cmhe@lemmy.worldtoScience Memes@mander.xyzpump up the jamz
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    5 days ago

    Nothing gets burned or otherwise destroyed when receiving EM radiation via a dish and converted it into electricity via a receiver.

    Sure, the amplification stage of the process likely works only one way, and should be replaced in order to send something.

    The one way process of burning oil to generate heat seems much more primitive than the energy conversion offered by a diode, TBH.

    You can push or tow an electric car and charge their batteries. Because electric motors are also generators.

    Even with your simplistic fossil fuel car in your example the alternator within can also be used as a motor.




  • cmhe@lemmy.worldtoScience Memes@mander.xyzpump up the jamz
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    6 days ago

    There is no such big differences between a light emitting (LED) and a light receiving diode (photodiode), they are just the reverse of each other. In fact photodiodes can even emit light, but very inefficiently. Same in reverse, LEDs can also detect light, just badly.

    It seems like most efficient energy conversion methods can be used in both directions.


  • cmhe@lemmy.worldtoScience Memes@mander.xyzpump up the jamz
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    7 days ago

    These radio telescopes don’t transmit anything at all, they listen to radio waves coming from the cosmos. Much like a normal telescope doesn’t transmit light.

    If you invert the flow of the electrons, a receiver becomes a transmitter.

    Speakers can become bad microphones and vice versa. Pretty sure that a radio telescope is a very bad transmitter for human music, but it could be possible with some changes…



  • Which other trustworthy search engines are there? And I don’t mean some different frontend or a meta search engine like ddg, sp, kagi, searx(ng), etc… that mostly just use googles, bings or even yandex and beidu results?

    Ages ago I configured and hosted yacy for myself, but that was a different time… Are there any real alternatives? With mayor internet companies like cloudflare, social media sites and many others restricting the access to the net and information, searching becomes more and more impossible if you aren’t a huge corporation…



  • Together with secure boot and your own signing keys, it could be a good way to en/decrypt the a dm-verity secured read-only rootfs. But for the home partition I would probably still want to enter my own decryption key, maybe via systemd-homed. From there you can update the kernel/initramfs and read-only rootfs image and sign them for the next boot.

    This is complicated to set up. Otherwise maybe use TPM as a 2FA, so you still have to enter a pin?






  • The only way I ever used passkeys is with bitwarden, and there you are sharing them between all bitwarden clients.

    From my very limited experience, pass key allows to login faster and more reliable compared to letting bitwarden enter passwords and 2fa keys into the forms, but I still have the password and 2fa key stored in bitwarden as a backup in case passkey breaks.

    To me, hardware tokens or passkeys are not there to replace passwords, but to offer a faster and more convenient login alternative. I do not want to rely on specific hardware (hardware token, mobile phone, etc.), because those can get stolen or lost.