Denis

@rdner
8 Followers
41 Following
16 Posts

Principal Software Engineer @ Elastic

Outside my engineering life
° I care a lot about privacy and information security.
° I write and produce music.
° I played guitar in a couple of music bands a long time ago.
° I did a few marathons and triathlons.
° I'm fascinated by photography and occasionally take pictures and film videos.
° I did some adventures on a motorcycle.

#programming #engineering #music #privacy

🏠 LocationBerlin, Germany
📢 Bloghttps://rdner.de
🧑‍💻 Githubhttps://github.com/rdner
Denis6d ago
nixCraft 🐧6d ago
systemd lost the plot a long time ago. they stopped following the Unix philosophy and now they're busy adding nonsense like age verification. Just like Firefox, systemd doesn't understand its core user base. There are plenty of distros without systemd
DenisMar 6
Tom MorrisMar 4
Removing physical buttons from hardware was one of the worst product design decisions in history and everyone involved should be publicly shamed.
DenisFeb 17
Kevin BeaumontFeb 16

Today in InfoSec Job Security News:

I was looking into an obvious ../.. vulnerability introduced into a major web framework today, and it was committed by username Claude on GitHub. Vibe coded, basically.

So I started looking through Claude commits on GitHub, there’s over 2m of them and it’s about 5% of all open source code this month.

https://github.com/search?q=author%3Aclaude&type=commits&s=author-date&o=desc

As I looked through the code I saw the same class of vulns being introduced over, and over, again - several a minute.

Build software better, together

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

GitHub
DenisJul 19, 2025
Dr. Maddkap, WerepsychologistJul 18, 2025
Ever since the Matrix was released in 1999, cell phones have been steadily replacing landlines - which were shown to be the only way to escape.
DenisJul 12, 2025
Everything you need to know about the ongoing death of the internet in one short video https://www.youtube.com/watch?v=If36mqCOaUc
Cloudflare Just Changed The Internet Forever

YouTube
DenisJul 11, 2025
nixCraft 🐧Jul 11, 2025
An (almost) catastrophic OpenZFS bug and the humans that made it (and Rust is here too) https://despairlabs.com/blog/posts/2025-07-10-an-openzfs-bug-and-the-humans-that-made-it/
An (almost) catastrophic OpenZFS bug and the humans that made it (and Rust is here too)

A couple of weeks ago I fixed a nasty bug in this function in OpenZFS:

despair labs
DenisJul 6, 2025

Finally collected my thoughts on the topic.

https://rdner.de/posts/tech/code-maintainability-is-not-always-a-technical-problem/

#softwaredevelopment #software #programming

Code Maintainability Is Not Always a Technical Problem | Denis Rechkunov

When it comes to debating about code maintainability, I often hear about software architecture, design patterns, testing, refactoring, etc. But I find it only partially true. No matter how good your software design is, no matter how good your tests are, if you work in a big team on a big project, it won't save you from collapse. Here is my take on code maintainability and things that I don't hear other people talk about.

rdner's blog
DenisJun 30, 2025
Natasha  🇪🇺Jun 30, 2025
They are starting to get it ...
DenisJun 29, 2025
This was more than 5 years in the making https://rdner.de/music/the-battle-single/?mastodon
#music
rdner — The Battle | Denis Rechkunov

The saga of the constant battle.

rdner's blog
DenisJun 28, 2025
Randahl FinkJun 27, 2025

No, I do not want to log into your site. No, I do not want notifications from you. No, I do not want to subscribe to your newsletter. No I do not want your cookies. No I do not want you to send me offers.

And when you wonder why I am taking my business elsewhere, this is why.