Luj

NixOS is a machine that takes technical problems and turns them into much more complex social problems

RE: @raito@nixos.paris

FWIW the SC is considering adding a referendum on the next elections with a proposal for a Gentoo like "no AI" policy for nixpkgs.

Nitter is dead how will I do to spy on my best enemies on twitter now :(

I have recently moved all my mail/calendar usecases to JMAP and my life has improved 900%

Very happy and proud to announce that @raboof@merveilles.town and myself received the MSR'26 FOSS Impact Award for our paper "Lila: Decentralized Build Reproducibility Monitoring for the Functional Package Management Model". My goal as a researcher has always been to make contributions that are useful to the broader Open Source community, so this award means a lot to me!

Go check our paper here: https://arxiv.org/abs/2601.20662

And the Lila project here: https://github.com/nix-community/lila

NixOS governance stuff is truly draining my mental energy

My personal page https://luj.fr is **not** down!

Why? Because it's literally hosted in my cupboard.

Do like me, don’t put all your eggs in the same big American basket.

I have been elected for a one year term on the NixOS Steering Committee! I am very grateful for the trust the community have placed in me and I’ll do my very best to steer the community in the direction I advocated for in my platform.

My private messages are always open to fellow community members that have questions or wish to raise concerns or issues on the SC actions.

Complete results of the elections: https://discourse.nixos.org/t/results-for-the-second-nix-steering-committee-election-2025/71628

One full nixpkgs bootstrap a day, keeps the doctor away

Yesterday at #FOSDEM @raboof@merveilles.town and I presented Lila, our tool allowing to distribute the workload of verifying reproducibility of Nix packages among several verifiers (see https://reproducibility.nixos.social).

If you want to see a recording of our talk, it is available here: https://fosdem.org/2026/schedule/event/HGC788-lila_decentralized_reproducible-builds_verification_for_the_nixos_ecosystem/

We have also written an academic paper about it!
-> https://arxiv.org/abs/2601.20662

This is the era of my researcher life where I learn how to deal with rejection... I received three rejection notifications in the last 10 days.

On Sunday I had some fun wandering in Stockholm and visiting some of the places I had not seen yet! I then went home at 8pm and instantly received a « good probability of observing auroras » notification! I had never seen them in my life so I rushed into the KTH forest in the dark with absolutely no clue or where to go but trying generally to go north and away from city lights. I finally was lucky enough to reach a nice lake and… TADAAAA!

Took a few pics in Stockholm last night!

My month of January: submitted 3 paper + made a camera ready version.

I was warned about last year of PhD...

Today I tried sending an email and it crashed my whole operating system…

We finally have wayland alternatives to EXWM that so great!!! I've tried ewm [1], which gets the work done, but ultimately adopted Reka [2], which single handedly solves all the problems I ever had with EXWM (including the fact that emacs is not in the critical path of your WM).

[1]: https://codeberg.org/ezemtsov/ewm
[2]: https://codeberg.org/tazjin/reka

Do not look at the compilation log so that it doesn't crash

Just landed in Los Angeles, where I’ll attend Planet Nix! Happy to meet fellow Nixers there!

This is the era of weirdly specific software

The world if there was any good JMAP android client (for calendars)