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Joined 1 year ago
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Cake day: July 30th, 2023

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  • A to B made more sense in a world where devices cannot serve as both roles via negotiation. My android phone when I got it utilized a data transfer method of plugging my iPhone charge port into my Android charge port, then the Android initiated the connection as a host device.

    The true crime is not that the cable is bidirectional, the true crime is that there is little to no proper distinction and error checking between USB, Thunderbolt, and DisplayPort modes and are simply carried on the same connector. I have no issues with the port supporting tunneled connections - that is in fact how docking stations work - just the minimal labeling we get in modern devices.

    I’d be fine with a type-A to type-A cable if both devices had a reasonable chance at operating as both the initiator and target - but that type of behavior starts with USB-OTG and continues in type-C.


  • Somewhat halfway between practical use and just messing around for fun.

    Several years ago I built a GPS NTP clock out of an RPi3 and an Adafruit GPS hat. Once I had the PPS driver installed, it’s precision/drift got pretty good. According to its own self measurements, I got pretty dang close to NIST stratum 1 NTP servers, but those are hundreds of miles away so that measurement isn’t super precise. It’s still running today, clocking nearly 24/7 operation since (checks shopping history) 2017, though I replaced the breadboard and mini module with a full sized hat with the same chipset in 2021.

    Recently I acquired a proper hardware GPS clock and I stacked the two against each other and found out my RPi did not half bad and can get between 0.5-10ms of the professionals (literally I’m pretty sure I’d need more precise measuring equipment to tell the difference between the two at this point than a regular computer). Now my homelab has fully redundant internet-disconneted stratum 1 time. Been half considering if I could write a GPSD driver for it as a joke, but I know upstream won’t accept it because it doesn’t offer SOOO many features they’d need.

    As for what else - I just kind of keep an eye out for projects related to GPS and high precision time, like the open source atomic PCI card that was released a few years ago. Finding out what people are doing to get better and better time is just downright interesting.

    Outside of the time world, it’s just fun to see what projects people come up with relating to maps and navigation. Stretch goal once I have enough server horsepower is to make a render-capable Open Street Map server with my home region loaded to start with, but eventually I’d like to get it to the point where I can load and process world.osm. That… Requires a LOT of CPU and SSD space.








  • I get the statement you’re trying to make here - serving the name of a platform you dislike with the same reverence as he-who-must-not-be-named in Harry Potter (Voldemort) - but all you’ve done is obfuscate the search engine. Now if someone is skimming for information on the platform via search, you’ve hidden your comments and post from someone who might find your perspective useful. No one is going to try 15 ways of spelling a platform name (except maybe trying stackoverflow with and without spaces). Internet users are pretty lazy.






  • So that’s the nifty thing about Unix is that stuff like this works- when you say “locked up”, I’m assuming you refer to logging in to a graphical environment, like Gnome, KDE, XFCE, etc. To an extent, this can even apply to some heavy server processes: just replace most of the references to graphical with application access.

    Even lightweight graphical environments can take a decent amount of muscle to run, or else they lag. Plus even at a low level, they have to constantly redraw the cursor as you move it around the screen.

    SSH and plain terminals (Ctrl-Alt-F#, what number is which varies by distro) take almost no resources to run: SSH/Getty (which are already running), a quick process call to the password system, then a shell like bash or zsh. A singular GUI application may take more standing RAM at idle than this entire stack. Also, if you’re out of disk space, the graphical stack may not be able to alive

    So when you’re limited on resources, be it either by low spec system or a resource exhaustion issue, it takes almost no overhead to have an extra shell running. So it can squeeze into a tiny corner of what’s leftover on your resource-starved computer.

    Additionally, from a user experience perspective, if you press a key and it takes a beat to show up, it doesn’t feel as bad as if it had taken the same beat for your cursor redraw to occur (which also burns extra CPU cycles you may not be able to spare)