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Sebastian Cohnen

tisba@ruby.social

<p>Developer 🤓 – Consultant 👔 – Load Tester 🚀</p><p>Mostly en, unless only de makes sense in the context.</p><p><a href="https://ruby.social/tags/nobots" class="mention hashtag" rel="tag">#<span>nobots</span></a></p>

Posts

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    Observation: If you are learning a new language (for me #Rust atm), you don&#39;t quite know yet what existing go-to libraries are and you start searching around. Maybe that has always been the case in some form, but the amount of vibe-coded, only 1-2 releases in total, still with clear bugs and issues and then abandoned is just CRAZY. Sure, I&#39;m still learning and certainly not quick understanding why something doesn&#39;t work, but I&#39;ve literally wasted many hours already b/c of slop-...

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    Naming heat haves after petrol companies is an excellent idea! https://mastodon.social/@dmian/116930053970724530

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    Haven&amp;#39;t seen a big splash in the (IT) news yet, but apparently there is a 16 year old vulnerability in KVM which can be used to escape a guest and even take over the host (CVE-2026-53359): https://github.com/V4bel/Januscape. If /dev/kvm is available (world-writable on the host), it can also be used as a LPE to root. This is kind of bad. REALLY bad.

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    I learned the other day, that I must assume MUCH less I know about the implications the &quot;AI” bubble has when talking to others. A good friend of mine, well educated, PhD in Psychology, is o/c aware of psychological issues caused by &quot;AI”. She was completely unaware of the absolute reckless and exploitative behavior of the industry. I only noticed, b/c she was complaining about how expensive new notebooks are and was VERY surprised why this is the case. For her “AI” was just a “free se...

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    People on the internet trying to look smart by saying &amp;quot;not vibe coding&amp;quot; is like &amp;quot;not using a calculator”. Quite an evolution to the &amp;quot;like not using compilers” I have to listen to in person.

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    Any #ruby #minitest users in my timeline? Today I tried to understand how to use MiniTest::Mock to expect a method call with some positional arguments, but arbitrary (none or any) keyword arguments. I think you can’t. It&amp;#39;s just not a thing. The only way to do this, is to use the block form with MiniTest::Mock#expect and to all argument matching yourself. What am I missing here? Disclaimer: I’m deep in the RSpec camp when it comes to Ruby test frameworks 🫣

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    Which one of the #redis drop-in replacements is still active and maintained these days? It’s for the Celery worker of paperless and I&amp;#39;m not exactly sure what is needed feature wise. I was just wondering what you would replace &amp;quot;docker.io/library/redis:8&amp;quot; with in a docker-compose file 😀

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    In a #Rust application, why would I specify a dependency version in Cargo.toml, if I don’t care about a specific version? Like using “*&amp;quot; by default. Cargo.lock would contain a concrete version, so stuff doesn&amp;#39;t break randomly, everybody gets the exact same version. If there is an incompatible change, you can add constraints, like limiting it to version “2” for example.

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    Nice &amp;quot;hack&amp;quot; to get all your gists from Github, including private ones by @FND: https://prepitaph.org/snippets/gist-exfil/

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    What is this? Some kind of spammy cold calling/outreach? I most certainly did not trigger this. The email looks very legit (as in comes from Anthropic). It&amp;#39;s sent to an old email I basically don&amp;#39;t use anymore.

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    Aside from the abysimal uptime Github currently presents, they -also- had one of the worst security incidents you can think of: An RCE via a simple “git push” with total loss of tenant isolation (via https://www.wiz.io/blog/github-rce-vulnerability-cve-2026-3854). If GitHub weren&amp;#39;t such a central piece of infrastructure, the current situation would be disastrous for their business. I am afraid this is just the beginning. #github #security

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    Copy Fail (https://copy.fail/, CVE-2026-31431) is a good reminder why I don’t want to run CI jobs only in containers. It would be great to get some momentum to https://code.forgejo.org/forgejo/forgejo-actions-feature-requests/issues/4 (microVMs for forgejo actions). At least on bare metal (or nested VMs with nested KVM) this would make things a lot safer. It would also simplify the usage of containers/docker in CI jobs without compromising security, which is kind of a pain with Codeberg Action...

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    @OSCo Hey there 👋🏻 I&#39;m a little confused, what you want to tell us by the message on the registration page. Which one is &quot;the last edition”? Is registration for 2026 already closed?