Michael Stapelberg 🐧🐹😺

Thanks for the tip, I am aware of that feature, but use different ways for different situations :)

Can I finally start using Wayland in 2026? Wayland is the successor to the X server (X11, Xorg) to implement the graphics stack on Linux. The Wayland project was actually started in 2008, a year before I created the i3 tiling window manager fo...

New blog post: Can I finally start using Wayland in 2026?

[…] I don’t want to be stuck on deprecated software, so I try to start using Wayland each year, and this articles outlines what keeps me from migrating to Wayland in 2026.

michael.stapelberg.ch/posts/2026-0...

#linux #sway #wayland #i3wm

I have a few more 🙈 Good luck with fixing the broken ones!

Development shells with Nix: four quick examples I wanted to use GoCV for one of my projects (to find and extract paper documents from within a larger scan), without permanently having OpenCV on my system. This seemed like a good example use-case to...

New blog post! 🥳

Development shells with Nix: four quick examples

→ Read more: michael.stapelberg.ch/posts/2025-0...

#Nix #NixOS

That’s the miekg/dns default, apparently 🤔

wireshark screenshot showing how the DNS response for login.tailscale.com is truncated

Yes, I am seeing otherwise: querying 8.8.8.8 via UDP results in a truncated response packet. Probably the reply you’re looking at is already the TCP-retry response.

I emailed you the pcap I show in this screenshot:

screenshot of login.tailscale.com resolving to 64 IP addresses

@bradfitz.com Maybe you all want to stop serving *all possible IP addresses ever* for login.tailscale.com to make it fit into a UDP response? :)

Migrating my NAS from CoreOS/Flatcar Linux to NixOS In this article, I want to show how to migrate an existing Linux server to NixOS — in my case the CoreOS/Flatcar Linux installation on my Network Attached Storage (NAS) PC. I will show in detail how t...

New blog post published 🥳

Migrating my NAS from CoreOS/Flatcar Linux to #NixOS

In this article, I want to show how to migrate an existing Linux server to NixOS — in my case the CoreOS/Flatcar Linux installation on my Network Attached Storage (NAS) PC.

michael.stapelberg.ch/posts/2025-0...

Five dudes on a stage: Michael Pratt, Damien Neil, Michael Stapelberg, and Jonathan Amsterdam from the Go team, with Mat Ryer fielding questions

Panel with the Go team at @gopherconeu.bsky.social !

#GopherconEU #Gophers #Golang

How I like to install NixOS (declaratively) For one of my network storage PC builds, I was looking for an alternative to Flatcar Container Linux and tried out NixOS again (after an almost 10 year break). There are many ways to install NixOS, an...

New blog post! 🥳

How I like to install NixOS

There are many ways to install NixOS, and in this article I will outline how I like to install NixOS on physical hardware or virtual machines: over the network and fully declaratively.

michael.stapelberg.ch/posts/2025-0...

#linux #nixos

Go Cryptography Security Audit - The Go Programming Language Go's cryptography libraries underwent an audit by Trail of Bits.

"Go Cryptography Security Audit" by Roland Shoemaker — go.dev/blog/tob-crypto-audit

#golang

GitHub - gokrazy/rsync: rsync in Go! implements client and server, which can send or receive files (upload, download, all directions supported) rsync in Go! implements client and server, which can send or receive files (upload, download, all directions supported) - gokrazy/rsync

At this week’s RIPE meeting, Simon Leinen from SWITCH talked about using my github.com/gokrazy/rsync/ memory-safe rsync implementation for diversity, reliability and security!

Find the video recording at ripe90.ripe.net/archives/vid...

#golang

My 2025 high-end Linux PC 🐧 Turns out my previous attempt at this build had a faulty CPU! With the CPU replaced, the machine now is stable and fast! 🚀 In this article, I’ll go into a lot more detail about the component selection...

New blog post:

My 2025 high-end Linux PC 🐧

michael.stapelberg.ch/posts/2025-0...

Turns out my previous attempt at this build had a faulty CPU! With the CPU replaced, the machine now is stable and fast!

#linux #pc

I usually keep the only remaining slot free for putting a GPU in to get a monitor signal, but I suppose I could put a Thunderbolt card in there and temporarily swap it with the GPU when needed.

Do you happen to have any recommendations for known-working Thunderbolt cards with low idle power draw?

Unfortunately, my internet router’s mainboard only has a USB 3.2 Gen 2x1 port (10 Gbps), not a USB 3.2 Gen 2x2 port (20 Gbps), otherwise that would have been a really cool way to bring a 20 Gbps connection to a normal laptop, without bulky extra hardware like SFP+ network cards.

Thunderbolt Networking Setup Thunderbolt Networking Setup. GitHub Gist: instantly share code, notes, and snippets.

The obvious follow-up question is: does thunderbolt networking work with Linux, too? The answer seems to be yes: gist.github.com/scyto/67fdc9...

#linux

photo of the apple migration tool, showing how a thunderbolt connection can reach 3 GB/s

photo of the migration tool working at >> 500 MB/s

TIL: Apple’s migration tool supports Thunderbolt networking, so by connecting two Macs with a Thunderbolt cable, you can transfer data much much faster than with Gigabit Ethernet: the migration tool measures the connection with 3 GB/s peak speed (actual migration speed: >> 500 MB/s):

New blog post! 🎉

In praise of grobi for auto-configuring X11 monitors

michael.stapelberg.ch/posts/2025-0...

#linux #golang

synthesizers on stage (Tangerine Dream 2025)

Bonus pic: stage setup up close

Tangerine Dream live in 2025

Went to see Tangerine Dream live tonight! Great tracks, visuals were stunning and overall a good time :)

If you haven’t heard of them: they *defined* electronic music in Germany back in the 1970s and have been active ever since. They made the sound track to GTA V! en.wikipedia.org/wiki/Tangeri...

Defend the Internet Archive. Protect the Wayback Machine. Tell the music labels: Drop the 78s lawsuit. Sign our open letter on change.org

📢 The Internet Archive needs your help.

At a time when information is being rewritten or erased online, a $700 million lawsuit from major record labels threatens to destroy the Wayback Machine.

Tell the labels to drop the 78s lawsuit.

👉 Sign our open letter: www.change.org/p/defend-the...

🧵⬇️

Tom Payne shares how he fixed a #chezmoi regression in binary size and startup time with the help of Git Bisect and the Go Size Analyzer 💪

Thomas Gosteli gives an overview about what’s new in Go 1.24 📣

…and Roman Sharkov teaches us about the complexities of i18n ☝️ (3/3)

Go Meetup April 2025 - YouTube Go Meetup April 2025, held at Google Zürich

All the talks from the April 2025 Zürich 🇨🇭 Go Meetup can be found in this playlist:

www.youtube.com/playlist?lis...

Denys Vitali is talking about the self-built photo booth at his wedding (implemented with #linux & #golang of course!) 😍

(2/3)

Go Meetup April 2025 - Go Protobuf YouTube video by Google TechTalks

My talk at the recent Zürich 🇨🇭 Go Meetup about Go Protobuf (specifically, the Opaque API) is now online:

youtu.be/QpLjj3yZ4R8?...

#golang

I just released go-boot v0.1!

A TamaGo unikernel implementing a UEFI Shell and OS loader allowing secure, powerful, yet easy UEFI API interaction.

100% unencumbered Go in your pre-boot environment.

github.com/usbarmory/go...

cmd/compile: slow escape analysis in large package in the typescript compiler · Issue #72815 · golang/go Go version go version go1.24.1 linux/amd64 Output of go env in your module/workspace: AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' ...

@thepudds.bsky.social is my hero

So far, up to 15x faster escape analysis for the Go compiler when compiling the TS checker package.

End to end that's an 8x faster compiler of the checker package for us, bringing it down from 50 seconds to 6 seconds.

github.com/golang/go/is...

screenshot of my blog post

New blog post: Intel 9 285K on ASUS Z890: not stable! ⚠️

I had a lot of trouble with this mainboard (?), so I am telling you what combination of hardware to avoid 😲

michael.stapelberg.ch/posts/2025-0...

photo of zurich at night, showing trains parked on tracks

#zurich SBB #trains at night

(view from Europabrücke)

To be clear, this isn’t starting the samba rsync program in the background or anything like that; it’s a 100% Go implementation; memory-safe and fast! Standalone and cross-architecture! 🚀

#golang

GitHub - gokrazy/rsync: rsync in Go! implements client and server, which can send or receive files (upload, download, all directions supported) rsync in Go! implements client and server, which can send or receive files (upload, download, all directions supported) - gokrazy/rsync

Did you know? My github.com/gokrazy/rsync module can be used as a library — both its client and its server accept the io.ReadWriter interface type :)

To show that this works and to show the flexibility this enables, I put together an rsync-over-gRPC demo:

github.com/stapelberg/r...

#golang