Linux Engineer's random thoughts

In Debian (and Ubuntu), when using a LUKS encrypted volume with cryptsetup, there is a documented option in the manpage for /etc/crypttab called keyscript: it should allow the init system to launch a program and have its standard output used as a key to u…

This was originally published as a thread on Mastodon.

It all started with this really simple nerdsnipe by Joachim (french): How many clicks would it take to go from the Wikipedia pages of (southmost Metropolitan France town) Cerbères to (northmost France town) Bray-les-Dunes, using only Wikipedia's "adjacent…

Advent of Code is an Advent calendar of small programming puzzles.

I have released a small application, hashtag-importer, that users of a Mastodon instance can use to slowly import more content from low-traffic hashtags, into their instance (with their admin's permission).

Previously, I had a bug in my gears emulator, which I then fixed.

Previously, I had a bug on my emulator with the way the map is rendered.

I wrote here about how I'm writing an emulator.

In 2019 I gave a talk at FOSDEM in Brussels on the "music portal", a device I built for my children as a toy that plays music.

I've been using a french dvorak-like key layout, called bépo for about 13 years; sometimes, I need to hack things around to have it work everywhere, like when I wrote support for it android physical keyboards.

I recently updated the server where this blog is hosted, so I tought I'd do an update on the original post explaining the tech stack used to run it.

Gmail used to be the reference for "infinite email storage".

This has been brewing for a while, but I finally put it into words during this pandemic: if you're an embedded software engineer, the ability to work remotely (without the hardware next to you) is in fact a sign that you have reached a certain level of so…

I noticed recently how little I knew about IPv6.

I’m at CCC for the first time this year !

Following my ELCE notes, you'll find below my notes for some of the talks the Linux Security Summit Europe 2019.

After a two years hiatus, I couldn't miss this year's ELCE happening in Lyon, the first in France since 10 years ago in Grenoble, which coincidentally was one of my first conferences.

This was previously published on LinkedIn Until very recently I couldn’t really answer this question.

You might have noticed I was at r2con 2019.

I'm back in Barcelona for this year's edition of r2con.

This year I'm at the Pass the Salt 2019 conferences.

This year I'm at the Pass the Salt 2019 conferences.

This year I'm at the Pass the Salt 2019 conferences.

2004 Gmail recently celebrated its 15 years anniversary, which led me down the path of how I got my first gmail invite.

I recently took the plunge and decided to move to fish, a friendly modern shell.

Scaleway, a french cloud provider, has been renting baremetal ARM servers for a few years now, and virtual ARM64 servers more recently.

After my r2con r2wars writeup, here's another writeup of a "challenge".

I had a lot of good feedback from the previous years live-blogs of the Embedded and Kernel Recipes conferences.

I tried something new this year, by going to r2con, a conference dedicated to radare2, a reverse engineering toolkit. r2con This conference is one of the most affordable security conference out there.

This is continuation of day 1 and day 2 of Kernel Recipes 2017.

This is continuation of yesterday's live blog of Kernel Recipes 2017.

Following last year attempt, I'm doing a live blog of Kernel Recipes 6th edition.

Following last year attempt, I'm doing a live blog of Embedded Recipes 1st edition.

With a Raspberry Pi or other modern single-board computers, you can make very simple toys.

For the Go 1.8 Release Party in Paris I gave a lightning talk on monotonic clocks.

I was in Berlin last week for ELCE, and it was great.

Update 2016-10-21: I've added links to the videos and LWN articles, which are of much higher quality than these live notes.

This is a followup to What do you find when you search Twitter for hashes ?

This image: This is what I found with hashbot, a twitter bot that looks for hashes.

I wanted to try my hand with ESP8266 modules, so I got a witty cloud development board.

This is a small project I recently released on github and Google Play.

So I have this NAS made by my ISP, that does a lot of things; but recently, I started having issues with its behavior.

So I was in Edinburgh this year, and I took notes as I usually do.

Update : I updated the information below with the 2020 tech.