NixOS CI is so cool. I can update a package of mine by just approving a PR. There is a lot of effort in this community to scale to the number of packages (130k packages currently). github.com/NixOS/nixpkg...

New delegation for DFSG, Licensing & New Packages Team (superseding previous announcement). I hope this is good news and could lead to stop being so dependent on the NEW queue, which puts a drain on many ecosystems (notably Rust and Go). lists.debian.org/debian-devel...

Some notes around RAID 5 with mixed-capacity disks on Linux. vincent.bernat.ch/en/blog/2026...

Let's build a 1997 Quake PC! fabiensanglard.net/quake_pc/

Since a few months, GitHub actions are becoming unreliable (on free runners). I have jobs that timeout during docker pull, jobs failing to connect to a ClickHouse instance after 5 seconds.

PyEZ got the ability to make querying an SSH agent configurable. There is a simpler solution: never disable the SSH agent (there is no such option in OpenSSH client for example). In 10 years, nobody explained why disabling SSH agent is useful. github.com/Juniper/py-j...

There's a new eBPF sandbox by David Ventura to learn BPF development with exercises and detailed explanations: ebpf.party. Looks great for a first quick introduction!

https://github.com/curl/curl/pull/20312 There, now you know.

Akvorado 2.1.0 was just released. It adds "FlowDirection" and the ability to decap some protocols (IPIP, GRE, VXLAN, and, of course, SRv6). github.com/akvorado/akv...

Using eBPF to load-balance traffic across UDP sockets with Go. This is useful when the default load-balancing algorithm is not good enough. This also enables graceful restarts. vincent.bernat.ch/en/blog/2026...

Current status. Waiting for Debian BTS to assign me a bug number for me to link to another one. Soon 2026.

Compressing embedded files in Go: using a ZIP archive to reduce the space used by static assets in a Go executable. #golang vincent.bernat.ch/en/blog/2025...

Modernizing Reddit's Comment Backend Infrastructure (from Python to Go, with an interesting approach of comparing reads/writes using A/B testing, as I suppose unit tests were not enough to bring confidence) old.reddit.com/r/RedditEng/...

Akvorado 2.0.4 was released. Mostly useful for people suffering from performance regressions since 2.0.3. github.com/akvorado/akv...

HAProxy 3.3.0 was released a few days ago: www.mail-archive.com/haproxy@form.... Debian packages for Debian Experimental, Debian Trixie and Ubuntu Noble have been uploaded to haproxy.debian.net.

Dingo: a meta-language for Go that adds Result types, error propagation, and pattern matching while maintaining 100% Go ecosystem compatibility. It's a transpiler. Pretty young and not complete yet. github.com/MadAppGang/d...

reflect.MethodByName() Inflates Your Binary Size. Interesting. Also reflect.Call(). And text/template uses reflect.MethodByName() with a non-const argument. This prevents dead code elimination. I need to find how to detect this. appliedgo.net/spotlight/re...

I was recently re-reading Crafting Interpreters and was struck by how delightfully effective its introduction is. In just four sentences, @stuffwithstuff.com establishes exactly what you'll learn from the book and why you'll enjoy learning it with him. refactoringenglish.com/blog/craftin...

So tempted to write a troll thread on how this incident shows Rust has bad error handling and wouldn’t have happened in Go, where we actually handle errors 🫣🫢😜 blog.cloudflare.com/18-november-...

Akvorado 2.0.3 is just released! There are some important fixes, notably around flow corruption under heavy load. This release is also compatible with Docker Engine 29. github.com/akvorado/akv...

kolkov/racedetector: Pure-Go race detector (no CGO needed, I didn't test it yet) github.com/kolkov/raced...

People using Traefik are now likely to run into this issue when upgrading to Docker 29.0.0. This can be fixed by downgrading. This includes Akvorado's users! github.com/traefik/trae...

Akvorado 2.0.2 is released. It features a bugfix for the latest version of Firefox. It increases the default Kafka buffer size of the inlet service to avoid packet drops. Plus an optional eBPF load balancer that is pretty cool but less useful than a good default value. :) github.com/akvorado/akv...

Minor release of Akvorado. It includes two bug fixes: one for older kernels (before 5.1) and one for gNMI users. github.com/akvorado/akv...

"Vampire Routing", a path finding algorithm that avoids direct sunlight 🧛 Pretty cool idea, and I actually do that during hot summer times to avoid excessive heat. sosm.ch/the-coolest-...

A couple years ago, I have complained about "show commit changes diff" being utterly broken on Cisco IOS XR. Good news, this is fixed in 24.4.2 and 25.1.1 (and a late fix is coming for 24.2.21). vincent.bernat.ch/en/blog/2022...

Release of Akvorado version 2.0, an open-source Tool to collect network flows with IPFIX and sFlow - Project by Vincent Bernat @vincent.bernat.ch #Network #Monitoring vincent.bernat.ch/en/blog/2025...

Final release of Akvorado 2.0! In addition to introducing the new architecture, this companion blog post details some other changes. vincent.bernat.ch/en/blog/2025...

New release of lldpd. Fast start is now enabled by default and VLAN advertisements are configurable. github.com/lldpd/lldpd/...

For x86-64, the 4 micro-architecture levels are fairly well documented. I am looking for something equivalent for AArch64 and I am almost nowhere. It does not seem to exist a piece of code that will tell you "this CPU supports ARMv8.5-A instruction set". Why? en.wikipedia.org/wiki/X86-64#...

This one could be the last beta before Akvorado 2.0.0! github.com/akvorado/akv...

Some people can pollute an opensource project beyond all decency. It's the first time I have to block someone and then the first time I have to explain it explicitly. github.com/akvorado/akv...

Another beta release of Akvorado 2.0.0. Notably, it fixes a crash likely to happen when you have many flows. github.com/akvorado/akv...

New beta for Akvorado 2.0.0. This should be the last one! Testing would be appreciated! github.com/akvorado/akv...

Trying a bit Claude Code. I feel like I am doing all the work and paying for that.

New week, new beta release of Akvorado. The number of workers in the outlet is now size dynamically to keep ClickHouse happy. Another interesting bit is the ability to enable TLS. Also, IPv6 is enabled by default in Docker (and a controversial change for IPv4)! github.com/akvorado/akv...

Sometimes, I see code like _ = s[n+1] in Go and I didn't understand its purpose. This is for bound check elimination. See: go101.org/optimization...

New 2.0.0-beta.2 for Akvorado. It now ships an image for ARMv7 (if you have an old Raspi with more than 8 GiB of RAM). I plan to rewrite the BMP component. And it seems I need to limit the amount of data sent to ClickHouse inside a single request. github.com/akvorado/akv...

A modern, open source, self-hosted customer support desk. Single binary app. Go-based #opensource #golang github.com/abhinavxd/l...

New beta version of Akvorado. This is a major release as the architecture changes a bit by splitting the inlet component in two parts to avoid doing too much inside the inlet, which is now focused on receiving packets. github.com/akvorado/akv...

How well do you know Python’s f-strings? I built a thing inspired by JavaScript’s Date constructor quiz but for Python. fstrings.wtf

I am removing any dependency on Bitnami Docker images from Akvorado: github.com/akvorado/akv... I strongly recommend you to not use Bitnami images anymore. They are becoming more and more hostile toward the community. See their most recent announce in the commit above.

new blogpost about protobuf perf (work related!) mcyoung.xyz/2025/07/16/h...

Introduction to Linux Netkit interfaces — with a grain of eBPF blog.yadutaf.fr/2025/07/01/i... I didn't know about it. This is a more performant veth that should be paired with eBPF. It was introduced by this commit: web.git.kernel.org/pub/scm/linu...

Anubis release v1.20.0 has support for running **without** client-side JavaScript - Tested with CLI browsers and the browser embedded in emacs anubis.techaro.lol/blog/release...

The new testing/synctest package planned for Go 1.25 is a very good idea. This will remove a lot of random `time.Sleep()` in tests, making them more robust. tip.golang.org/doc/go1.25#n...

The Evolution of Caching Libraries in Go maypok86.github.io/otter/blog/c... (performance-oriented)

Using the Internet without IPv4 connectivity. For me, this is a good example why content provider should use IPv6. CGNAT devices are not needed for the most popular websites and they may malfunction. jamesmcm.github.io/blog/no-ipv4/

Going to SwiNOG tomorrow. I took train tickets through CFF website (Switzerland Railway) and the experience is still amazing compared to what we usually have: no ads, quick interface, seamless input of origin, destination and date. Absolutely no friction.

Why Generative AI Coding Tools and Agents Do Not Work For Me — blog.miguelgrinberg.com/post/why-gen.... I share the same feelings (I am trying a bit Claude Code): it's not that fast, you still need to review and it forgets quickly the corrections you ask.