• 15 Posts
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Joined 2 years ago
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Cake day: June 12th, 2023

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  • I haven’t been able to get flatpaks (what you have to use on Bazzite and Kionite) to work with a wifi scanner and I have been using Linux since 2016, so not really beginner friendly. Apparently some people have gotten it working, but still, it works generally out of the box on Fedora, Mint, and Opensuse Tumbleweed I think.

    WiFi printing works fine though.

    But if you have a USB printer, or don’t use the scanner of your WiFi printer, Bazzite is great!


  • If you everyday tasks include document signing or scanning with a Wifi printer, then maybe steer clear of Bazzite and Kionite and opensuse Aeon/kalpa.

    I would go for just normal fedora or opensuse tumbleweed instead.

    Mint is also great if you don’t have a “fresh off the production line new hardware”.



  • For hobby work altium is quite ridiculous.

    I design with Altium professionally every day. It is buggy spaghetti code that they got that way by shoving more and more productivity-centered features in there with little thought.

    The libraries are a complete and utter shitshow also, which is why pretty much every company just makes their own.

    It works (usually) and you can design fast with it, but for someone lightly using it for hobbies, it is a massive overkill and steep learning curve to not get any benefit over KiCAD in the end unless they want to start doing multichannel complex flex-rigid designs with mechanical linked integration.

    Plus for someone wanting to just do a half hour or hour of designing in their free time, the 3-5 minute startup time would also get annoying.



  • I recently saw a video where someone had done the math if the sun output literally 1% less energy (or I guess shading 1% that reaches earth would be the same) and it would literally throw us into another ice age lol, and apparently models say that even that wouldn’t fix the damage done to our oceans and it would actually speed up acidification.








  • I have “looked it up” and I have designed medical PPG devices professionally also. They absolutely do not “estimate” your heart rate any more than holding your finger to your wrist and counting your heart beats in a minute. That is also “estimation” just like literally all physical measurements that are measured for less than t=infinity are.

    Of course, there are manufacturers and models that do it badly, especially during weightlifting or heavy flexion/high wrist impact activities.

    1 lead ECG can also very very reliably measure your heart rate even during and that is what chest straps like the Polar H10 do in a variety of exercises.

    Here is a good overview of fitness watch PPG testing in a variety of scenarios and how it correlates to 1 lead ECG. This guy does tons and tons of extended tests. I just chose a recent one that has recent devices. Even sleep cycle recognition in modern smart watches is getting better and better correlation to EEG, which this guy also tests sometimes.

    Stress, recovery times, VO2max, etc… All of the “1 degree removed” statistics are generally a loose educated guess and generally crap.

    Heart rate, HRV, skin temperature, speed with GPS + IMUs, and to a certain extent relative activity intensity can be directly measured and are not a guess if the device is designed and tested well (which admittedly, only like 10% of devices are)

    Blood pressure measurements using the principle of delay between electrical signals and pressure wave elasticity is also being FDA certified right now as accurate to a certain percentage of medical pressure cuffs.