Erethon's Corner

In early September of 2025 I attended NixCon in Rapperswil-Jona in Switzerland.

Keeping the streak up, here's the fourth week of This Week In NixOS.

Lots of interesting things happened this week in the NixOS ecosystem.

Second week of my NixOS notes on what happened in the community or that I learned that I found interesting.

I often send to friends links about the NixOS ecosystem that I find interesting.

I recently got the urge to better understand how NixOS is built and how secure the build pipeline is.

In a previous post, I mentioned how I participated in the 25.05 Zero Hydra Failures event, where participants aim to fix build failures in Nixpkgs before the release date of the next NixOS version.

I've been participating in the NixOS 25.05 Zero Hydra Failures event where people are encouraged to fix build failures in Nixpkgs.

While catching up with my RSS feed, I ran into this post by Farid Zakaria which describes how they automatically add the latest git commit hash to their statically generated blog.

A friend recently asked me to document some of my Nix(OS) workflows and any tips I might have about Nix and NixOS.

I was reading up on the recent Ultralytics GitHub Action compromise and I stumbled upon this great analysis of the situation.

I often find myself wanting to blog about something, but I get stuck on trying to write a blog post that's perfect, which is a big mental barrier.

The other day I realized that /tmp/ on my NixOS installations is not a tmpfs as I'm used to from other distros.

I recently had to share my time zone information with a group of people online.

I spent a big part of April on moving parts of my infrastructure and computers to NixOS.

Since I didn't post monthly updates so far in 2024, here's a 2024 Q1 update on what I've been up to.

I've blogged about both Reticulum and Meshtastic before (1, 2, 3, 4) and I've even given a presentation about both of them.

In December, I didn't have much time to work on tech things since I spent a large part of it away from home.

November was a bit of a slow month, but here are some updates on the things I worked on.

Almost ten years ago, I blogged about my email setup (1, 2, 3).

Updates on some of the things I've been up to during October 2023.

Ever since I started using Matrix, I always wondered what would happen if a Matrix homeserver got deleted and then recreated, without any data on the database.

In my last two posts [1, 2] about Meshtastic, I mentioned how I wanted to experiment with Reticulum.

In a previous post I documented my experience with the Meshtastic project and one of the TTGO T-Beam boards.

A friend recently introduced me to the Meshtastic project, an open source "platform" for creating long range, off-grid, mesh networks for short messages based on LoRa.

I run my own Matrix homeserver that I share with friends and family.

I want to build a DIY modular synthesizer.

During 36c3 last year the FOSSASIA assembly was selling some cheap bluetooth LCD name badges and I got one as to have something to fiddle with during the night at the hotel.

One of my favorite conversations I had with a colleague back in early 2015 was about Ansible, the future of provisioning VMs, pets vs cattles, Infrastructure as Code and the ways an organization can make sure that an administrator isn't leaving behind a b…

Last week we installed an airconditioning unit in our house and yesterday a DHT11 humidity and temperature sensor arrived that I had ordered in the past from ebay and had totally forgotten about it.

I've decided to Go through (this will make sense in a bit) the Cryptopals Challenges in order to get more familiar with crypto related concepts and Golang (^_^), which I'm using to solve the problems.

This is a long time coming post that I've kept postponing (pun intended) for ages.

A bit over two years ago I blogged about migrating to Octopress from Wordpress, this time I'll blog about migrating to Hugo from Octopress.

Yeap, this is another rant on the security practices of Docker users.

Following the example of GKH and others, I've added one more piece of software on my email setup and workflow.

Edit: This post was written many years ago.

In one of my previous posts, I explained my email setup in detail.

Wanting to have more control over my email, I decided to setup my own mail server.

Update 17/03/2015: I'm also using NotMuch now, for more info check out this post.

It's been over a month since I set up twelve Kippo hosts using my Ansible playbook, time to get some stats.

I've been running some instances of Kippo for quite some while now with great results.

It's been a little over a month since I started using tmux.

I've been using tmux for a while, and even though I didn't like it at first, now I'm in love with it.

A couple of months ago I wanted to experiment with the serial console of an old router I had laying around.

I decided to port my blog to Octopress and move away from Wordpress after all these years.

A lot of people have combined a RasPi and a SDR dongle to get a low power consumption ADS-B tracker.

For the past two months I've been reading about SDR and everything related to radio telecommunications.

Three months ago I installed Kippo in a low end VPS of mine.

A long time ago, I saw this in the Hak5 store.

I decided to reinvent the wheel by making an ARP spoofer in python using raw packets, thinking it would be a nice practice.