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Thomas Zahner

@thomas_zahner@mastodon.social
mastodon 4.7.0-beta.1
  • Open on mastodon.social

Software Engineer, Rust programmer 🦀
Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

0 Followers
0 Following
13 Posts
Joined October 20, 2023
Website:
https://thomaszahner.ch
GitHub:
https://github.com/thomas-zahner
GitLab:
https://gitlab.com/thomas-zahner

Posts

Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · May 28, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

Google is not just becoming evil but also enshittified to the point of uselessness. Not only is the generated response bad and useless, they also don't care about my English language headers and thus disregard the open and standardised web.

Noticed as I had to test if this post really does reflect the current state of Google: @jaffathecake@mastodon.social

At least I learned how to properly pronounce "intelligence".

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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · May 24, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

What an interesting week this was, with so many lovely people and interesting discussions in Utrecht :)

#RustWeek

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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · May 14, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

I do get that maybe Rust has some advantages over Zig. But I'm not sure if a single vibe coded commit/PR containing 1 million additions is a good solution..

https://github.com/oven-sh/bun/pull/30412

Meanwhile GitHub has issues even loading the PR page and its comments..

#ai #slop

GitHub

Rewrite Bun in Rust by Jarred-Sumner · Pull Request #30412 · oven-sh/bun

Blog post with details coming soon. It passes Bun's pre-existing test suite on all platforms (and fixes several memory leaks and flaky tests), the binary size shrinks by 3 MB - 8 MB, the benchm...

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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 29, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social
Replying to @decathorpe@mastodon.social
@decathorpe@mastodon.social ah yes, I see, thank you. I just pointed out that I thought GitHub would simply show the CVSS criticality until now. But that's not the case. So I learned something today :)
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thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 29, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social
Replying to @decathorpe@mastodon.social
@decathorpe@mastodon.social huh interesting. They might weigh the criteria differently? Until now I thought they would use plain CVSS
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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 27, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social
Replying to @decathorpe@mastodon.social
@decathorpe@mastodon.social https://app.opencve.io/cve/CVE-2026-41676 https://app.opencve.io/cve/CVE-2026-41677 https://app.opencve.io/cve/CVE-2026-41678 https://app.opencve.io/cve/CVE-2026-41681
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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 27, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social
Replying to @decathorpe@mastodon.social
@decathorpe@mastodon.social Hmm I still see them as high severity, but not sure how easy it is to exploit them in the real world. As far as I understand many of the vulnerabilities are caused by FFI and incorrect pointer logic, after all the library is just bindings for OpenSSL. rustls in contrast is a full Rust implementation reducing the need for unsafe code and raw pointers, which reduces the probability of such bugs greatly.
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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 23, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social
Replying to @thomas_zahner@mastodon.social
Here we switched before the last release in February: https://github.com/lycheeverse/lychee/pull/1928 It resolved multiple inconsistencies as lychee behaved differently on each target platform as the target platform's openSSL implementation was used. Switching to rustls has resolved multiple long-standing issues and we haven't received any related bug reports since.
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thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Apr 23, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

Just woke up to 5 vulnerability alerts (4 high severity) of the openSSL Rust crate. Now I'm even more thankful we've made the switch to rustls in lychee. I've only seen advantages so far. The transition was totally smooth, and now we have faster, more stable and apparently more secure TLS.

Thank you @djc@hachyderm.io, @ctz@infosec.exchange et al. for this amazing piece of software!

#rust #openssl #rustls

hachyderm.io

Dirkjan Ochtman (@djc@hachyderm.io) - Hachyderm.io

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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Feb 04, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

Thanks to multiple train delays and cancellations on my way to #fosdem I found the time to write a new #blog #post about reinventing the wheel and a chess engine I wrote a few years back.

https://thomaszahner.ch/posts/reinventing-the-wheel/

mastodon.social

Mastodon

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thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Feb 03, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

Back home from #fosdem. Great talks, lovely people and cool stickers. We now have lychee stickers! Thank you @nlnet@social.nlnet.nl and @NGIZero@mastodon.xyz for printing the stickers and for supporting lychee in the first place.

mastodon.social

Mastodon

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thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Jan 26, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

RE: @mre@mastodon.social

Thank you @mre@mastodon.social for motivating me to start blogging in the first place :)
I feel that writing a blog post also helps you to understand yourself (and the thing you are writing about) better. For example, since writing the mentioned post, I understand much better what had bothered me and why. Writing forces one to think.

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Open post
thomas_zahner
Thomas Zahner @thomas_zahner@mastodon.social · Jan 11, 2026
Thomas Zahner
@thomas_zahner@mastodon.social

Software Engineer, Rust programmer 🦀 Interested in modern technologies, FOSS and Linux. When I'm not sitting in front of the computer, you can find me on the climbing wall, doing other sporting activities or making music.

mastodon.social

#SilentSunday

mastodon.social

Mastodon

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