The boundaries of a man exist only in so so far as he is willing to let himself go

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Joined 9 months ago
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Cake day: January 21st, 2024

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  • The benefit of passkeys over passwords is that they’re phishing resistant and use strong encryption. They’re effectively an iteration on yubikeys meaning you can have as many (or as few) passkeys associated with a given login as you’d like. So, you can easily prevent there being a single point of failure in the system.

    Passkeys are tied to accounts and devices and those devices are the only devices used for authentication. This means you can access your account form a public device without that device ever knowing your credentials provided you and your secure device are physically present so it avoids the whole keylogger issue.




  • Optical cameras alone have issues as well that can’t be handled though. It’s the combination of the two along with other things like ultrasonic sensors that makes them safe. More sensors in general are better because they reduce the computational burden and provide redundancy - even if that redundancy is to safely stop.

    Cost is certainly an issue, but on $40k+ vehicles it’s cheap enough for other EV makes to include it in the cost. Volvo for instance is using Luminars version at a cost of about $500 (https://www.wired.com/story/sleeker-lidar-moves-volvo-closer-selling-self-driving-car/).

    Image processing is expensive even with dedicated hardware and LiDAR provides enough extra information to avoid needing to make make certain calculations off of images alone (like deltas between image series to calculate distance). Those calculations are further amplified by conditions where images alone don’t provide enough information - similar to how there are conditions where the LiDAR data alone wouldn’t be sufficient.






  • I think it comes down to what you want to do with these things. You’re just getting into home automation, so I would plan on whatever choice you make now not being a reflection of where you end up on your journey.

    The kasa devices don’t have great open firmware support but do offer a low level api for integration into things like home assistant. I’d personally lean towards it, but that’s mostly because I deal with software for a living and feel I can get enough value out of how it integrates with things in both the tinker space and out of the box.

    If you’re more interested in tinkering at the firmware lev though it looks like the sonoff is the one to get. They’re ultimately just a plug you can turn on/off and monitor the energy usage with so however you end up tinkering, it’s a gateway into the larger home automation.



  • I mean, the obvious thing here is that “it just works” compared to flashing (and knowing how to flash) custom firmware onto devices. In my mind there are two big things that Matter has going for it:

    1. Local-only support. If a device supports Matter it needs to be fully controllable locally per the specification.
    2. Thread support. All the perks of zigbee and z-wave with the benefits of a much more reliable and robust network thanks to its mesh design. Every Matter device can act as a relay for any other Matter device. The only thing that needs to talk to anything over the LAN (or internet) is a border router.

    Those two things aside, Matter is open source. It was formerly ProjectCHIP. So, if the device has the correct hardware to support Matter (not all current IoT devices have the necessary hardware) in theory open source firmware for those devices should be easier to develop.