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Social Forum federato con il resto del mondo. Non contano le istanze, contano le persone

Ignore this toot just testing something.#FreeBSD

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Gli ultimi otto messaggi ricevuti dalla Federazione
  • @annamam@mastodon.social hello and welcome to the

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  • Magnetic-Suspension Hoverboard is Only 11 Years Late

    Anyone who saw Back to the Future II was disappointed when 2015 rolled around with nary a hoverboard in sight. There have been various attempts to fake it, but none of them quite have the feel of floating about wherever you’d like to go that the movie conveys. The little-known YouTuber [Colin Furze] has a new take on the idea: use magnets. Really big magnets.

    If you’re one of [Colin]’s handful of subscribers, then you probably saw his magnetic-suspension bike. We passed on that one, but we couldn’t resist the urge to cover the hoverboard version, regardless of how popular [Colin] might be on YouTube. It’s actually stupidly simple: the suspension is provided by the repulsive force between alarmingly large neodymium magnets. In this case, two are on the base plate that holds the skateboard ‘trucks’, and two are on the wooden ‘deck’ that [Colin] rides upon.

    Of course magnetic repulsion is a very unstable equilibrium, so [Colin] had to reduce the degrees of freedom. In his first test, that was with a pair of rods and linear bearings. That way the deck could only move in the z-axis, providing the sensation of hovering without allowing the deck to slide off its magnetic perch. Unfortunately those pins transferred too much vibration from the ground into the deck, ruining the illusion of floating on air.

    After realizing that he’d never be able to ollie (jump) this massive beast of a skateboard, [Colin] decides he might as well use a longboard instead. Longboards, as the name implies, are long skateboards, and are for transportation, not tricks. The longboard gets the same massive magnets, but after a couple of iterations to find a smoother solution — including a neat but unsuccessful tensegrity-inspired version — ends up with a pair of loosely-fitted pins once again, though relocated to the rear of the board. From the rider’s perspective, it looks exactly like a hoverboard, since you can’t see underneath from that angle. According to [Colin], it feels like a hoverboard, too.

    The only way to do better would be with eddy currents over copper, or superconductors over a magnetic track, but both of those methods limit you to very specific locations. This might be a bit of a fakeout, but its one with a degree of freedom. One, to be specific. You have to admit, it’s still less of a fake than the handle-less Segway we got in 2015, at least.

    youtube.com/embed/yzXZ7cZXifo?…

    hackaday.com/2026/03/15/magnet…

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  • @geeknik this sound like a dystopian fiction. Don’t wanna believe it.

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  • @geeknik

    Have never, don't, will never understand why people.
    No wonder advertising won everything.

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  • @geeknik Yup. It was a honeypot. All this time.

    And bombs will drop according to that location data some day.

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  • @dbattistella @argals

    Friend of mine came back from the Netherlands after visiting family, & told me about a meeting he sat in on with some of wife's colleagues & their management. Friend was boggling at how colleagues were just taking the •piss• out of mgmt for some stupid decision.

    My immediate thought: "That's socialized healthcare for you."

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  • @silvermoon82 @fesshole You forgot the voucher for a bidet…

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  • @alienghic @annamam That's an oddly accurate description of this place.

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Post suggeriti
  • 0 Votes
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    @alfonsosiciliano @FreeBSDFoundation @stefano can we imply that #wayland support on #freebsd is somehow less experimental?
  • 0 Votes
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    Started to touch FreeBSD jail and Bhyve VMs, using them for some programming project. Damn, if only I have such unlimited power near 15 years ago, when I was in university!Need to have a building environment with some libraries for FastCGI and PostgreSQL installed? No problem, write a Bastillefile which enables sshd and mounts my catalog with projects inside the jail via the nullfs magic. Then create thin jail, apply this template to it and boom — I have a ready development environment with ssh access and all necessary stuff. Just connect to it and build the program, all necessary sources are already here.Need to test program on the NetBSD? No problem — just create Bhyve VM with preinstalled netbsd template, then install OS with comp set and setup some services: Nginx, PostgreSQL, spawn-fcgi, etc… Then type C-x d /ssh:drag0n@10.0.0.2:~ in the Emacs, copy sources via Dired and I can test my program on the environment, as close as possible to the my home server.All things looks so integrated in the OS and console software are so good, that it is incomparable with my Docker trips at work When programming become fun again #FreeBSD #bhyve #Bastille
  • Hey, #FreeBSD jail/networking folks:

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    Hey, #FreeBSD jail/networking folks:I've been trying to figure out whether VNET jail-networking *requires* a bridge0 device with both the LAN-facing adapter and all the common epair ends, or whether, since the epairs are all virtual interfaces, pf(4) can manage to do the routing/NAT without everything sitting on the same bridge0 device.However, when I try this (including net.{inet.ip,inet6,ip6}.forwarding=1) traffic doesn't seem to flow. Is there some obvious thing I've missed or that I should be testing? Or do I just need to throw everything on a bridge0 and deal with it?
  • 0 Votes
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    I wrote a short note on how to switch audio output in FreeBSD on the fly. For example, when you watch a video on Youtube or something and want to switch from rear audio to headphones or vice versa.Nothing groundbreaking, just retelling a documentation. But if you needed a short solution to this problem, here it is.https://iyer.ru/2025/09/29/how-to-switch-audio-output-in-freebsd-on-the-fly/#FreeBSD