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

πŸ•οΈ my adventures in #selfhosting: day 259 (slow down edition) πŸŒβ€‹a blog post that discusses the sense of urgency I felt to learn #Docker (because it will become mandatory for #Ghost)... and how a recent discovery has pushed back my deadline.

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Gli ultimi otto messaggi ricevuti dalla Federazione
  • Why Chains are Still Better for Bicycles than Belts

    Theoretically a belt drive makes for a great upgrade to a bicycle, as it replaces the heavier, noisy and relatively maintenance-heavy roller chain with a zero-maintenance, whisper-quiet and extremely reliable belt that’s rated at an amazing 20-30,000 km before needing a replacement. Of course, that’s the glossy marketing brochure version of reality, which differed significantly from what [Tristan Ridley] experienced whilst cycling around the globe.

    Although initially he was rather happy with his bike, its sealed car-like Pinion gearbox and Gates carbon belt drive system, while out in the wilds of Utah he had a breakdown when the belt snapped. When the spare belt that he had carried with him for the past months also snapped minutes later after fitting it on, it made him decide to switch back to the traditional bush roller chain.

    Despite this type of chain drive tracing its roots all the way back to Leonardo da Vinci, they actually offer many advantages over the fancy carbon-fiber-reinforced polyurethane belt. Although with the Pinion gearbox the inability to use a derailleur gearing system is no big deal, [Tristan] found that the β€˜zero maintenance’ part of the belt was not true for less hospitable roads

    Anyone up for some tasty peanut butter? (Credit: Tristan Ridley, YouTube)
    A big issue was that of abrasive dust, which created a very noisy coating on the belt that’d have to be regularly cleaned off with precious water, or by having silicone lubricant sprayed on the belt. Even with all that care he found that the belt would snap after about 8,000 km, well below the rated endurance.

    When it came to super-sticky mud, called peanut butter mud for good reasons, he found that chains also cope much better with this, as the mud will just squeeze out of the chain and be forced off the sprocket, whereas the belt will happily keep compacting the mud onto the contact surfaces, increasing belt tension and requiring constant cleaning to not become hopelessly stuck.

    The Utah breakdown also showed why these belts are actually very fragile: the replacement belt had been packed away folded-up for a few months at that point in the luggage, and during storage the carbon fibers had become compromised to the point where the belt just snapped after a few minutes of use. A metal chain will happily be stored away for as long as you can keep it away from corrosion, and fold up very compactly.

    Another awesome feature of roller chains is that they’re super-modular, allowing you to carry spare links and such with you for in-the-field repairs, while even the most remote bicycle store in any country can help you out with maintenance and repairs, unlike the special and highly custom belts that need to be shipped in by courier.

    Of all the bicycle technologies that [Tristan] has used, it seems that only this drive belt has been an outright disappointment. The sealed gearbox would seem to be a massive improvement over finicky derailleurs, and hydraulic brakes are reliable and common enough that they haven’t been an issue so far.

    His conclusion is that bicycle drive belts are fine if you do city driving, where they probably will last the rated kilometers, but they rapidly fall apart in even slightly adverse conditions.

    youtube.com/embed/nx5nN3kyx5k?…

    hackaday.com/2026/02/21/why-ch…

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  • @raccoon @Paradox it's protein here

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  • @Paradox@raru.re
    Then watch as they are confused because in my language the joke doesn't work.

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  • Chat up a girl, ask if she gets enough vitamin D.

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  • @view It did get a laugh out of me

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  • @bhasic @infobeautiful

    The chief reason to eat local is to avoid dependence on the global or national supply chain, which carries with it in implied industrial mass in order to deliver food to you.

    It would seem that lots of locally produced food would usually be the vegetable variety.

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  • Il lager sotto casa. Processo per Moussa Balde, morto suicidato in CPR
    @anarchia
    C’è chi ancora crede che gli orrori appartengano al passato, che siano confinati nei libri di storia, nelle fotografie in bianco e nero dei campi nazisti, nei reticolati che tagliavano il https://www.rivoluzioneanarchica.it/il-lager-sotto-casa-processo-per-moussa-balde-morto-suicidato-in-cpr/

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  • @knowattitude @ai6yr @farah @futurebird @akamran
    β€œI want to talk to Mister Bunny.”

    β€œIs there a Sanity Clause?”

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  • 0 Votes
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    @pixelunion This is beyond awesome, thank you very much. Please note this link in the blog post leads to a 404 page:https://pixelunion.eu/en/help/immich/migrate-google-photos
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    Just going to leave this here...https://slfh.st/discord#selfhost #selfhosted #selfhosting #foss #opensource #homelab #discord #stoat #spacebar #sharkord #teamspeak
  • 0 Votes
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    Commitin programming crimes }:->Few weeks ago I seriously looked to the mine OpenHAB installation and asked a question for myself: "Am I really need it?" Look, I have a few ZigBee devices, which are connected to the my server with the help of ZigBee2MQTT. Thusly, all necessary values and knobs are accessible through the MQTT topics.And I'm using the OpenHAB (big Java application which eats ton's of RAM and constantly swapping) just to:1) Read values from MQTT topic2) Read weather forecast from Open-Meteo through simple REST API endpoints3) Store all the data to the PostgreSQL DB.4) Display these data in the nice Web page which works only in browsers with JS engine.So, basically, I trade tons of RAM and processing power just for a nice web-page with few indicators. While retrieving data from my ZigBee devices processed by the another service.After that thought, I started to think about replacing this monster with small hand-written program, which will not eat 700 MB of RAM. Just Nginx, small FastCGI script on C, which will read values from DB and display them on the simple HTML page. And another small daemon (also written in C) which will take data from MQTT topic (and from REST API of Open-Meteo) and will write them to the DB. And possibly some PGSQL procedures to analyze these data.At least I'll have fun #programming #C #smarthome #selfhosting
  • 0 Votes
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    Pretty interesting how an old hardware works well and compute well in the strange configurations.Prereqs: Intel Atom N2800 1866 MHz and 2 Gb RAM.Since there are no NetBSD builds of xray-core and v2raya β€” I spin up a FreeBSD VM inside the Qemu and without NVMM accelerator (not supported by my CPU). Execute these programs inside this VM β€” and the server still running and even doesn't overload #NetBSD #FreeBSD #Qemu #IntelAtom #SelfHosting