#Nix

Sandro

I must say https://github.com/Mic92/nix-diff-rs is the improvement to nix-diff I was looking for years! @mic92 thanks! 🎉

#nix #nixos #nixpkgs

Cyberus Technology

@[email protected]

Ready for a round of Blobby Volley at #nixcon

#nix

Michael Stapelberg 🐧🐹😺

@[email protected]

Now traveling to NixCon! 🥳 https://2025.nixcon.org/

If you can’t make it and want to follow along from elsewhere, live streams will be at https://2025.nixcon.org/live

#Nix #NixOS

Now traveling to NixCon! 🥳 https://2025.nixcon.org/

If you can’t make it and want to follow along from elsewhere, live streams will be at https://2025.nixcon.org/live

#Nix #NixOS

Cyberus Technology

@[email protected]

Ready for a round of Blobby Volley at #nixcon

#nix

Niklas Korz

@[email protected]

Almost in #Zurich for #NixCon2025 🇨🇭

And DB was on time so it all went smoothly without having to change trains in Basel.

#Nixcon #Nix #NixOS

ALT text details

Train screen showing the train's journey from Kiel over Frankfurt to Zürich (which I joined in Mannheim)

ALT text details

Close up of the train's screen showing we're halfway from Basel to Zürich

Niklas Korz

@[email protected]

Almost in #Zurich for #NixCon2025 🇨🇭

And DB was on time so it all went smoothly without having to change trains in Basel.

#Nixcon #Nix #NixOS

ALT text details

Train screen showing the train's journey from Kiel over Frankfurt to Zürich (which I joined in Mannheim)

ALT text details

Close up of the train's screen showing we're halfway from Basel to Zürich

Paul Meyer

@[email protected]

I just completed the #Nix community survey:
https://discourse.nixos.org/t/nix-community-survey-2025/68870
Participate and help to improve the Nix community!

A new module is available: `programs.vivid` Vivid is a generator for the LS_COLORS environment variable that controls the colorized output of ls, tree, fd, bfs, dust and many other tools.
#NixOS #Nix #HomeManager

Adrian Block🇪🇺

@[email protected]

🚀 Today we’re launching Thymis — open source + SaaS for managing IoT device fleets declaratively with NixOS.
Fleet updates, infra‑as‑code style.
Live now → https://www.producthunt.com/products/thymis?launch=thymis-open-source-cloud

#nixos #nix #iac #iot

Adrian Block🇪🇺

@[email protected]

#nixos #nix #iac #iot

Amy de Buitléir

@[email protected]

I've updated Wombat's Book of Nix
(https://mhwombat.codeberg.page/nix-book/) to show how to use `nix shell` in place of `nix-shell`, and added a few recipes. It's even explain-y-er now, and, freely available online.

#nix #nixos

Home Manager News

@[email protected]

A new module is available: `programs.swappy` Swappy is a Wayland native snapshot and editor tool, inspired by Snappy on macOS. Works great with grim, slurp and sway. But can easily work with other screen copy tools that can output a final image to stdout.
#NixOS #Nix #HomeManager

Amy de Buitléir

@[email protected]

#nix #nixos

Home Manager News

@[email protected]

The 'wayland.windowManager.hyprland' module now supports submap configuration. Submaps allow you to create keybind contexts in Hyprland, useful for creating mode-based workflows like resize modes or application launch menus. Configure submaps using the new 'submaps' option: wayland.windowManager.hyprland.submaps.resize = { settings = { binde = [ ", right, resizeactive, 10 0" ", left, resizeactive, -10 0" ", up, resizeactive, 0 -10" ", down, resizeactive, 0 10" ]; bind = [ ", escape, submap, reset" ]; }; }; Learn more about submaps at: https://wiki.hypr.land/Configuring/Binds#submaps
#NixOS #Nix #HomeManager

Lenny

@[email protected]

Just preparing slides for a talk.

I'd say the quality of #LaTeX error messages largely inspired the #Nix language and Gradle.

Thor A. Hopland

@[email protected]

Another one! Wheeeeeeee and let me add to it.

#NixOS will probably be great - 10 years down the line - as the Nix community has to both maintain a massive assortment of packages WHILE refactoring #Nix & #Nixpkgs according to their RFCs.

I think the idea is to take enough functionality out of nix and into nixpkgs, to the point where they can offer an enterprise edition of nixpkgs. #Flakes also needs to be replaced, apparently.

Good bye NixOS, Hello Debian (Again)!
https://karl-voit.at/2025/08/30/end-of-my-nixos/

Cyberus Technology

@[email protected]

🚀 Exciting news! We've just launched the open beta for CTRL-OS - our enterprise-grade #NixOS LTS solution!
✅ 5 years of long-term support
✅ #CyberResilienceAct compliance ready
✅ Perfect for embedded systems & regulated industries
✅ Built on NixOS 24.05 foundation
Ready to experience enterprise #NixOS with true digital sovereignty? Join our beta program!
📖 https://cyberus-technology.de/en/articles/ctrlos-open-beta-announcement
#OpenSource #DigitalSovereignty #EmbeddedSystems #Linux #nix

ALT text details

The CTRL-OS logo is a colorful & versatile hummingbird.

Cyberus Technology

@[email protected]

ALT text details

The CTRL-OS logo is a colorful & versatile hummingbird.

Klaus Frank

@[email protected]

Are there some easy examples for #nixpkgs?

I'm currently failing at figuring out how to properly add a dependency to a package so that I can access a file from the dependency at runtime from the actual package at a specific location...

#nix #nixos

Home Manager News

@[email protected]

A new module is available: 'services.shpool'. shpool is a service that enables session persistence by allowing the creation of named shell sessions owned by shpool so that the session is not lost if the connection drops. Read about it at https://github.com/shell-pool/shpool
#NixOS #Nix #HomeManager

Klaus Frank

@[email protected]

How do I install a package from my local checkout of my (modified) fork of the nixpkgs repo so that doing "nixos-rebuild switch" will overwrite these changes?

Currently the docs just say to use "nix-env -f . -iA libfoo" but so far everyone told me to NEVER NEVER EVER run "nix-env" as this will "fuck up the entire system in a way that nixos-rebuild won't fix".

#nix #nixos #nixpkgs

Klaus Frank

@[email protected]

Is there some documentation for which "NixOS tests in nixos/tests" I've to run when I'm trying to make a PR to nixpkgs for a single package?

At most I was able to find how to run a test but not anything in regards to which one(s).

Also as there are literally countless dedicated tests and I don't want to accidentally run one that locally rebuilds every single package the trial-and-error approach also kinda isn't fitting.

Also which of these does the CI/CD (also) run?

#nix #nixos #nixpkgs

Klaus Frank

@[email protected]

googling for how to update the checksum in a #nixpkg is surprisingly difficult. You get more incorrect solutions than search results.

Why can't you just use a normal sha256 of the exact file downloaded from the url that is literally right above it?

#nix #nixos

Karl Voit

@[email protected]

"To start with #Nix was one of my worst IT ideas so far."

Read about the reasons why #NixOS did not work out for me on:

Good bye NixOS, Hello #Debian (Again)!
https://karl-voit.at/2025/08/30/end-of-my-nixos/

I say bye to the great Nix community here! 👋 You were the best part of my Nix experience. 🙇

#publicvoit #Linux #rant

kgoetz

@[email protected]

I am finding it curiously difficult to find information on configuring software (eg nginx) installed via #nix #flakes, when not running nixos , and using #debian underneath.
I don't know if it's unsupported, uncommon enough to be badly documented, I am just failing at searching, or (just as likely) I am failing at comprehension when I do find a resource.

Jake Hamilton

@[email protected]

Should #Nix packages be namespaced by language, purpose, or some other metric?

Fabio Natali

@[email protected]

I'm planning to attend this #Nix #NixOS meetup in #London, on Wednesday 10 September:

https://luma.com/jil81qxf

If this is your sort of thing, maybe see you there?

Jacek Γαλοwιcζ

@[email protected]

👀 Watch out! 🚨 New #Nix & #NixOS stuff incoming....! 🚀

ALT text details

The new "Nix Antipatterns" book! Available soon.

Jacek Γαλοwιcζ

@[email protected]

👀 Watch out! 🚨 New #Nix & #NixOS stuff incoming....! 🚀

ALT text details

The new "Nix Antipatterns" book! Available soon.

C.B.Leslie

@[email protected]

Hi #nixos #nix people. Here is a how to patch the theme of #signal messenger with nix:

https://gitlab.com/-/snippets/4883306

It was a bit of a thing, but fun to start to theme once I got it working.

Fabio Natali

@[email protected]

I'm planning to attend this #Nix #NixOS meetup in #London, on Wednesday 10 September:

https://luma.com/jil81qxf

If this is your sort of thing, maybe see you there?

Zło To

@[email protected]

What #nix (and #nixos) is doing with their magical expression language that hardly anyone understands, could also be done with typescript, just as #pulumi does it (among other languages). You'd get universal IDE & LSP support and it's a language that everyone already loves (to hate ;)

Simon Tournier

@[email protected]

Hey #Guix and #Nix!

You know what?

With @nim, we are considering to meet Guix people and Nix people in the same room in Capitole du Libre (Saturday, Nomvember 15th) in Toulouse, France.

1. Stay tuned! 🧶

2. Save the date. 🎉

https://capitoledulibre.org/

Simon Tournier

@[email protected]

Hey #Guix and #Nix!

You know what?

With @nim, we are considering to meet Guix people and Nix people in the same room in Capitole du Libre (Saturday, Nomvember 15th) in Toulouse, France.

1. Stay tuned! 🧶

2. Save the date. 🎉

https://capitoledulibre.org/

Sandro

@[email protected]

"#Nix darf man hier"

#c3d2leaks

Jake Hamilton

@[email protected]

How would you like to declare supported cross-platform build targets in #Nix with #Aux? My current possible routes are:

- Support all combinations of platform build/host/target combinations, but output non-native builds with "cross" in the name
- Explicitly set supported build / host / target systems per package and support all combinations of them
- Explicitly set supported triples for supported platforms

Pol Dellaiera

@[email protected]

Today is **Ukrainian Flag Day **🇺🇦.

In the same spirit as the Pride Month logo, I proposed on GitHub that the NixOS homepage logo be updated in blue and yellow for this occasion. A symbolic gesture, but one that would show solidarity and consistency.

https://discourse.nixos.org/t/proposal-update-the-nixos-logo-for-ukrainian-flag-day-23-august/68375

#nixos #nix

Miss Rari 🏳️‍⚧️

@[email protected]

Are you a C++/Arch girl or are you a Rust/NixOS girl?

#Rust #NixOS #Arch #ArchLinux #Nix #CPlusPlus #Rustlang

Ariel (L3 nightmare ed.)

@[email protected]

Nice little blog on Dishwashers and Nix

https://kmh.prasil.info/posts/on-dishwashers-and-nix/

#NixOS #Nix

Ariel (L3 nightmare ed.)

@[email protected]

Nice little blog on Dishwashers and Nix

https://kmh.prasil.info/posts/on-dishwashers-and-nix/

#NixOS #Nix

Pol Dellaiera

@[email protected] · Reply to Typst's post

@typst It is amazing that you mention #Nix as an official way to use Typst :)

Arnar Ingason

@[email protected]

#GitOps for #Kubernetes With Nixidy and #ArgoCD

Someone wrote about my project nixidy!

@[email protected]

A new module is available: 'programs.claude-code'. Claude Code is Anthropic's official CLI for Claude, providing an interactive command-line interface for AI-assisted development. The module supports: - Configuration through 'programs.claude-code.settings' - Custom agents via 'programs.claude-code.agents' - Custom commands via 'programs.claude-code.commands' - MCP (Model Context Protocol) servers via 'programs.claude-code.mcpServers' - Package installation control via 'programs.claude-code.package'
#NixOS #Nix #HomeManager

Bruno Rodrigues

@[email protected]

I teach a course on reproducibility for the Data Science students at the University of Luxembourg, and this year the course material was revised to focus on #Nix as the canonical tool for repro:

https://rap4mads.eu/

but also Functional Prog, unit testing, packaging, Docker!

Niklas Korz

@[email protected]

> goes down the rabbit hole of the origin of "legacyPackages" naming

> finds no good reason (yada yada nested package attributes and nix flake show whatever) that would ever allow it to be properly addressed in #nixpkgs, the one package set most people will always have to interact with

> decides to refer to upstream #nix as legacyNix because it makes just as much sense

Niklas Korz

@[email protected]

> goes down the rabbit hole of the origin of "legacyPackages" naming

> decides to refer to upstream #nix as legacyNix because it makes just as much sense

secana 🦀

@[email protected] · Reply to Niklas Korz's post

@niklaskorz I asked myself the same question. When I started using #nix, I assumed I'm doing something wrong, as "legacyPackages" sounds like it should not be used anymore.

Niklas Korz

@[email protected]

> goes down the rabbit hole of the origin of "legacyPackages" naming

> decides to refer to upstream #nix as legacyNix because it makes just as much sense

Sandro

@[email protected]

#YIL (Yesterday I learned): #nix-tree supports loading multiple paths at once which makes comparing them really easy. Thanks @m4rc3l !

Also strace is a dependency of mutter through gnome-settings-daemon, upower, libeatmydata. 😂

Bruno Rodrigues

@[email protected]

The 'programs.trippy' module now supports the 'forceUserConfig' option. This option allows forcing the use of user configuration even when running as root, providing more consistent behavior across different execution contexts.
#NixOS #Nix #HomeManager

ｔｏ⟁ｓｔ⟁ｌ

@[email protected]

Finally surpassed 300 commits in Nixpkgs! Are you hiring for any Nix positions??

#nix

Home Manager News

@[email protected]

The 'programs.opencode' module now supports global custom instructions. A new 'rules' option allows providing global custom instructions that will be written to '~/.config/opencode/AGENTS.md' for consistent behavior across all opencode sessions.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

ashell 0.5.0 changes the configuration file location and format. The camelCase format has been removed in favor of snake_case, which better aligns with the toml syntax. Your configuration will break if you have defined the "programs.ashell.settings" option. To resolve this, please alter your settings to use snake_case.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new service is available: 'services.ssh-tpm-agent'. The ssh-tpm-agent service provides SSH authentication using TPM (Trusted Platform Module) for enhanced security with hardware-backed keys.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

The 'programs.firefox' module now supports extension permissions configuration. A new 'profiles.<name>.extensions.settings.<name>.permissions' option allows declarative control over Firefox extension permissions, enhancing security by explicitly managing what permissions extensions have access to.
#NixOS #Nix #HomeManager

PolyWolf

@[email protected]

New blog post: "I Am Almost (But Not Quite) Ready To Switch To NixOS"

https://wolfgirl.dev/blog/2025-08-05-i-am-almost-but-not-quite-ready-to-switch-to-nixos/

#devops #nix

PolyWolf

@[email protected]

New blog post: "I Am Almost (But Not Quite) Ready To Switch To NixOS"

https://wolfgirl.dev/blog/2025-08-05-i-am-almost-but-not-quite-ready-to-switch-to-nixos/

#devops #nix

Thomas Vitale ☀️

@[email protected]

Nix Flakes are great. However, they can only be distributed via Git. I think OCI would be a better distribution format, especially for enterprise use cases. Several startups are working on their own systems to improve Flake usage and distribution, but none of them seem to be considering #OCI... I hope the "Gitless GitOps" moment that we recently experienced in the cloud native ecosystem (moving from Git to OCI for configuration artefacts) will eventually materialise in Nix as well.

#Nix #Flake

ALT text details

{ description = "A flake for Java development environments"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05"; java-toolbox.url = "oci://ghcr.io/thomasvitale/java-toolbox"; }; outputs = { self, nixpkgs, java-toolbox }: { ... }; }

omar

@[email protected]

OK #nix is not for me, only have one life.

Robert Hensing

@[email protected]

Any #Nix macOS users wanna try a game? https://functional.cafe/@kupac/114896061093743460
aarch64-linux testing also welcome

Philipp

@[email protected]

Why do programmers hate unit suffixes so much? "timeout = 1" is, unfortunately, a classic (seconds? milliseconds? microseconds? minutes?).

Now I see "diskSize = 1024 * 20" in the #nix package for #singularity. Jesus! Make it "diskSizeMiB" or something"...

#programming

cute lily

@[email protected]

what does the ... in { ... }: {} in nix files mean

#nix #nixos

Mike

@[email protected]

Attention #nix #nixos nerds who want to help an open source project that will enable more people to use and enjoy #linux at a VERY critical time.

I need your help!

I have have a repo for a #nixbook installer that I want to customize to make it much easier for newcomers to install.

I believe this is possible but outside my expertise.

I've broken up what I'm looking to do in 2 separate issues.

If you can help, I (and the world) would be so grateful!

https://github.com/mkellyxp/nixbook-installer/issues

Home Manager News

@[email protected]

'programs.thunderbird' now supports declaration of address books using 'accounts.contact.accounts'.
#NixOS #Nix #HomeManager

Mike

@[email protected]

Attention #nix #nixos nerds who want to help an open source project that will enable more people to use and enjoy #linux at a VERY critical time.

I need your help!

I have have a repo for a #nixbook installer that I want to customize to make it much easier for newcomers to install.

I believe this is possible but outside my expertise.

I've broken up what I'm looking to do in 2 separate issues.

If you can help, I (and the world) would be so grateful!

https://github.com/mkellyxp/nixbook-installer/issues

Rosa Control

@[email protected]

This needs a clean-up, but really? Is this my best shot? It can't be #nix

ALT text details

(builtins.elemAt (builtins.split "/" url) ((builtins.length (builtins.split "/" url)) - 1))

S0AndS0

@[email protected]

Don't get too excited, but I posted a blog post today, all about my adventures with solving issues of a technical kind with the Nix language;

https://s0ands0.github.io/nix/firejail-wrap-binaries-automatically/

... is my first time getting serious with Nix, so please be a little gentle ;-)

#iac #nix #nixos #security

S0AndS0

@[email protected]

Don't get too excited, but I posted a blog post today, all about my adventures with solving issues of a technical kind with the Nix language;

https://s0ands0.github.io/nix/firejail-wrap-binaries-automatically/

... is my first time getting serious with Nix, so please be a little gentle ;-)

#iac #nix #nixos #security

Ludovic Courtès

@[email protected]

“Trying Guix: A Nixer's Impressions”
https://tazj.in/blog/trying-guix

Insightful post with a good understanding of the differences between #Nix and #Guix.

Ludovic Courtès

@[email protected]

“Trying Guix: A Nixer's Impressions”
https://tazj.in/blog/trying-guix

Insightful post with a good understanding of the differences between #Nix and #Guix.

Lobsters

@[email protected]

NixOS My Savior https://lobste.rs/s/oj7zi4 #nix
https://basicbitch.software/posts/2025-07-12-NixOS-My-Savior.html

LovesTha🥧

@[email protected]

Okay, I don't like #python, but I think this is #Nix/#NixOS causing issues due to how it does things differently. My minimal test case (using vu for package management) works simply on other OS, but I can't convince it to work in nix. I get errors about not finding the grpc dependency.

Minimal test.py:

@[email protected]

nixfmt v1.0.0 released! 🥳

This is the first stable release of the official Nix formatter. It implements RFC 166, which defines a standard for Nix formatting.

Great work by the Nix Formatting Team, thanks to everyone involved!

https://github.com/NixOS/nixfmt/releases/tag/v1.0.0

#nix #nixfmt #nixos #nixpkgs

nixpkgs security changes

@[email protected]

Critical security issue in Nix 2.30 on macOS

https://discourse.nixos.org/t/critical-security-issue-in-nix-2-30-on-macos/66506

#security #nixpkgs #nixos #nix

nixpkgs security changes

@[email protected]

Critical security issue in Nix 2.30 on macOS

https://discourse.nixos.org/t/critical-security-issue-in-nix-2-30-on-macos/66506

#security #nixpkgs #nixos #nix

nixpkgs security changes

@[email protected]

Critical security issue in Nix 2.30 on macOS

https://discourse.nixos.org/t/critical-security-issue-in-nix-2-30-on-macos/66506

#security #nixpkgs #nixos #nix

Linux Is Best

@[email protected]

I upgraded to NixOS 25.11 (unstable) because I couldn’t check for an upgrade within 25.05 — Podman depended on an outdated version of Electron (34.5.8), which appears to be end-of-life.

I wasn't willing to override the configuration to allow insecure or deprecated software, nor did I want to selectively mix stable and unstable packages. So, I decided it was best to upgrade the entire system.

#NixOS #Nix #Linux #Podman #Electron

ALT text details

Desktop screenshot of both KDE Settings About and Fast Fetch, showing that I am using Nix OS 25.11

systemd-jaded

@[email protected]

new post about how you can choose not to use #Nix to manage some parts of your configuration, how to do it, and the benefits you get from doing that

instant changes, no rebuilds, and you can still get pinning for dependencies
https://jade.fyi/blog/use-nix-less/

systemd-jaded

@[email protected]

new post about how you can choose not to use #Nix to manage some parts of your configuration, how to do it, and the benefits you get from doing that

instant changes, no rebuilds, and you can still get pinning for dependencies
https://jade.fyi/blog/use-nix-less/

systemd-jaded

@[email protected]

new post about how you can choose not to use #Nix to manage some parts of your configuration, how to do it, and the benefits you get from doing that

instant changes, no rebuilds, and you can still get pinning for dependencies
https://jade.fyi/blog/use-nix-less/

systemd-jaded

@[email protected]

new post about how you can choose not to use #Nix to manage some parts of your configuration, how to do it, and the benefits you get from doing that

instant changes, no rebuilds, and you can still get pinning for dependencies
https://jade.fyi/blog/use-nix-less/

Home Manager News

@[email protected]

A new module is available: 'programs.kubeswitch'. The kubectx for operators. kubeswitch (lazy: switch) is the single pane of glass for all of your kubeconfig files.
#NixOS #Nix #HomeManager

justsoup

@[email protected]

Nix is an interesting language. Why is there a billion ways to do one thing, and every person has a different opinion on what is the "right way"...

#Nix #NixOS

Home Manager News

@[email protected]

A new module is available: 'programs.anki'. Anki is a spaced repetition flashcard program.
#NixOS #Nix #HomeManager

Fabio Natali

@[email protected]

Hey, there's a #Guix #London #meetup planned for Tuesday next week:

https://www.meetup.com/guix-social/events/308234219/

Time: Tuesday 8th July at 6pm
Location: 20 Farringdon St, EC4A 4AB

Being troubled by some unmatched parenthesis? Come speak to us!

In love with #Nix / #NixOS and curious to know more about Guix? Join us!

(Please register on meetup.com or DM me as your name needs to be passed to the building reception so they can let you in.)

Fabio Natali

@[email protected]

Hey, there's a #Guix #London #meetup planned for Tuesday next week:

https://www.meetup.com/guix-social/events/308234219/

Time: Tuesday 8th July at 6pm
Location: 20 Farringdon St, EC4A 4AB

Being troubled by some unmatched parenthesis? Come speak to us!

In love with #Nix / #NixOS and curious to know more about Guix? Join us!

(Please register on meetup.com or DM me as your name needs to be passed to the building reception so they can let you in.)

seungjin

@[email protected]

My next goal for LeLoi Linux is probably to adapt Nix or Guix to manage users and all configurations in /var and /etc.
Good read here: http://sam-d.com/blog//running-guix-package-manager-on-top-of-fedora-silverblue/
#linux #bootc #guix #nix

Beady Belle Fanchannel

@[email protected]

“fun” fact about nix flakes: Because their caching behavior is frankly atrocious, Claude Sonnet seems to have internalized that nix will just sometimes use an outdated file and cannot be trusted.

fuck my life
#nixos #nix

Viktor Tokariev 🇺🇦

@[email protected]

Ofc you heard that Nix is Turing complete, but how exactly make it execute a Turing machine? Here's the example:
https://stuebinm.eu/git/playground/tree/nix-turing/turingmachine.nix
From comment from top of the file:
> a turing machine in Nix. Each step will produce a new entry in the nix store containing the current band & state; it terminates by deliberatly producing a syntax error.
Blog post about it (2021): https://stuebinm.eu/posts/nix-tic-tac-toe-complete.html
#nix #nixos

Home Manager News

@[email protected]

A new module is available: 'programs.quickshell'.
#NixOS #Nix #HomeManager

Pol Dellaiera

@[email protected]

I can relate to this actually, and reducing my time on open source is actually to get back to sport and lose a bit of weight.

"You will gain 10lbs - #nix has this effect on people, we don’t know why - but your body isn’t adding some extra inches before you have it. Knowing that, you can buy larger clothes already, but not something like 4x larger. Wait until your current ones, doesn’t fit anymore."

NixVegas

@[email protected]

We are glad to announce a software sponsor, @flox. Flox is a platform that lets developers and operators focus on building quickly with reproducible environments that span the enterprise SDLC. Using a declarative framework based on Nix, a package management and configuration tool, Flox allows developers to create environments that contain everything they need to build software.

Visit Flox's website at https://flox.dev.

https://nix.vegas/#sponsors

#Nix #NixOS #DEFCON #NixVegas

@[email protected]

Visit Flox's website at https://flox.dev.

https://nix.vegas/#sponsors

#Nix #NixOS #DEFCON #NixVegas

NixVegas

@[email protected]

📢 Major #NixVegas speaker announcement: @flox has generously offered to sponsor DEF CON Human badges for accepted speakers giving talks of 30 minutes or more.

Submit your talks here: http://sessionize.com/NixVegas

#Nix #NixOS #NixVegas #DEFCON

Aires

@[email protected]

IMPORTANT for #Lix users: look out for this critical bug that can bork your system: https://lix.systems/blog/2025-06-27-lix-critical-bug/

@[email protected]

I have been testing out #NixOS lately, and I love it! The only downside is that whenever I install any Neovim plugin, I get an error 5113 "Module 'X' not found".

Would a kind #Nix user out here be willing to help me?

Boosts appreciated 🤍

#HomeManager

Yvan DS 🗺️

@[email protected]

Here me out.

Nix remote builders, no ssh. Share derivations via cache i.e. https://github.com/kalbasit/ncps

#nix #nixos #remotebuilds

Yvan DS 🗺️

@[email protected]

Here me out.

Nix remote builders, no ssh. Share derivations via cache i.e. https://github.com/kalbasit/ncps

#nix #nixos #remotebuilds

Chris McDonough ✅

@[email protected]

devenv-secrets, a new tool to help store secrets locally in your computer's keychain

https://github.com/mcdonc/devenv-secrets

#nix #nixos

nixpkgs security changes

@[email protected]

Security Advisory: Privilege Escalations in Nix, Lix and Guix

https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

#security #nixpkgs #nixos #nix #lix #guix

Robert Hensing

@[email protected]

📢 Update your Nix installation, and refrain from building untrustworthy derivations until done.
https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

Hercules CI Agent uses the running nix daemon, so updating your system Nix is sufficient.

#Nix #NixOS #CI #Security #Vulnerability

Lix Project

@[email protected] · Reply to Lix Project's post

Lix releases are now out, please upgrade. A detailed writeup about the issue and the mitigations is at https://lix.systems/blog/2025-06-24-lix-cves/, scroll a bit down for for instructions on how to protect yourselves.

See also the Discourse announcement post at https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017, which also links to the various Nixpkgs PRs for those that use Lix from Nixpkgs.

#Nix #Lix

Robert Hensing

@[email protected]

📢 Update your Nix installation, and refrain from building untrustworthy derivations until done.
https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

@[email protected]

Security Advisory: Privilege Escalations in Nix, Lix and Guix

https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

#security #nixpkgs #nixos #nix #lix #guix

Lix Project

@[email protected]

Security pre-disclosure:

A critical security advisory for #Nix and #Lix (and #Guix) will be published tomorrow at 14:00 UTC.

If you're building untrusted derivations, you must upgrade to ensure your systems remain secure.

Lix versions 2.91, 2.92, 2.93, and main will receive upgrades on all known channels to Lix. Lix 2.90 WILL NOT receive upgrades.

More details are available in the pre-disclosure post:
https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

Please stay alert for the full announcement tomorrow at 14:00 UTC.

Lix Project

@[email protected]

Security pre-disclosure:

A critical security advisory for #Nix and #Lix (and #Guix) will be published tomorrow at 14:00 UTC.

If you're building untrusted derivations, you must upgrade to ensure your systems remain secure.

Lix versions 2.91, 2.92, 2.93, and main will receive upgrades on all known channels to Lix. Lix 2.90 WILL NOT receive upgrades.

More details are available in the pre-disclosure post:
https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

Please stay alert for the full announcement tomorrow at 14:00 UTC.

Lix Project

@[email protected]

Security pre-disclosure:

A critical security advisory for #Nix and #Lix (and #Guix) will be published tomorrow at 14:00 UTC.

If you're building untrusted derivations, you must upgrade to ensure your systems remain secure.

Lix versions 2.91, 2.92, 2.93, and main will receive upgrades on all known channels to Lix. Lix 2.90 WILL NOT receive upgrades.

More details are available in the pre-disclosure post:
https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

Please stay alert for the full announcement tomorrow at 14:00 UTC.

Lix Project

@[email protected]

Security pre-disclosure:

A critical security advisory for #Nix and #Lix (and #Guix) will be published tomorrow at 14:00 UTC.

If you're building untrusted derivations, you must upgrade to ensure your systems remain secure.

Lix versions 2.91, 2.92, 2.93, and main will receive upgrades on all known channels to Lix. Lix 2.90 WILL NOT receive upgrades.

More details are available in the pre-disclosure post:
https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

Please stay alert for the full announcement tomorrow at 14:00 UTC.

Lix Project

@[email protected]

Security pre-disclosure:

A critical security advisory for #Nix and #Lix (and #Guix) will be published tomorrow at 14:00 UTC.

If you're building untrusted derivations, you must upgrade to ensure your systems remain secure.

Lix versions 2.91, 2.92, 2.93, and main will receive upgrades on all known channels to Lix. Lix 2.90 WILL NOT receive upgrades.

More details are available in the pre-disclosure post:
https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

Please stay alert for the full announcement tomorrow at 14:00 UTC.

Michael Stapelberg 🐧🐹😺

@[email protected]

Also switched from Homebrew to #Nix on Mac, because I encountered multiple breakages like https://mas.to/@zekjur/114720303646604246 over the years…

Let’s see how stable this setup will turn out :)

ALT text details

screenshot of the start of a flake.nix containing the packages I want to use, then neofetch showing which computer it’s running on

Chris McDonough ✅

@[email protected]

devenv-secrets, a new tool to help store secrets locally in your computer's keychain

https://github.com/mcdonc/devenv-secrets

#nix #nixos

Vera Gradient

@[email protected]

in case someone here didn't hear about this, it seems there will be a security release for lix, nix and guix on the 24th

EDIT: Patches have been released for lix and nix now
- https://lix.systems/blog/2025-06-24-lix-cves/
- https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

#lix #nix #guix #nixos

Vera Gradient

@[email protected]

Vera Gradient

@[email protected]

ruby

@[email protected]

new blogpost: actually putting stuff on that nixos instance from last time

https://foxgirl.engineering/blog/core-services-part-2

#blog #nix #nixos #homelab #indieweb

ruby

@[email protected]

new blogpost: actually putting stuff on that nixos instance from last time

https://foxgirl.engineering/blog/core-services-part-2

#blog #nix #nixos #homelab #indieweb

Yann Büchau

@[email protected] · Reply to Yann Büchau :nixos:'s post

Luckily, I have :nixos: #nix on my #SailfishOS phone, so getting the #Immich cli was super easy. `immich upload {Pictures,Videos}/Camera` was *much faster* than the Android app, checked locally for duplicates via hashes and uploaded the rest like a champ.

nixpkgs security changes

@[email protected]

Pre-disclosure announcement: Security Advisory for Nix and Lix on June 24, 2025

https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

#security #nixpkgs #nixos #nix #lix

nixpkgs security changes

@[email protected]

Pre-disclosure announcement: Security Advisory for Nix and Lix on June 24, 2025

https://discourse.nixos.org/t/pre-disclosure-announcement-security-advisory-for-nix-and-lix-on-june-24-2025/65831

#security #nixpkgs #nixos #nix #lix

NixOS Transylvania Sprint

@[email protected]

🏰 Announcing: Transylvania Sprint - One Week of Nix/OS Hacking

Date: October 6-11, 2025
Location: Recenter House, Adrianu Mare, Mureș, Romania

Registration is open! More details at: https://transylvaniasprint.org

Join us for an exciting week of Nix hacking, learning, and collaboration in the beautiful countryside of Transylvania! We're bringing together 25 intermediate to veteran Nix enthusiasts for an intensive sprint focused on advancing the Nix ecosystem.

Participation is free of charge. The event includes accommodation in shared rooms, three vegetarian meals daily, fiber internet, dedicated hacking spaces, group activities, and transport from the nearby city.

We aim to create an accessible event by covering accommodation and meals, ensuring passionate people can join from a wide range of backgrounds.

#Nix #NixOS #nixpkgs #OpenSource #Hackathon #Sprint #Transylvania #Romania #Events

NixOS Transylvania Sprint

@[email protected]

🏰 Announcing: Transylvania Sprint - One Week of Nix/OS Hacking

Date: October 6-11, 2025
Location: Recenter House, Adrianu Mare, Mureș, Romania

Registration is open! More details at: https://transylvaniasprint.org

We aim to create an accessible event by covering accommodation and meals, ensuring passionate people can join from a wide range of backgrounds.

#Nix #NixOS #nixpkgs #OpenSource #Hackathon #Sprint #Transylvania #Romania #Events

NixOS Transylvania Sprint

@[email protected]

🏰 Announcing: Transylvania Sprint - One Week of Nix/OS Hacking

Date: October 6-11, 2025
Location: Recenter House, Adrianu Mare, Mureș, Romania

Registration is open! More details at: https://transylvaniasprint.org

We aim to create an accessible event by covering accommodation and meals, ensuring passionate people can join from a wide range of backgrounds.

#Nix #NixOS #nixpkgs #OpenSource #Hackathon #Sprint #Transylvania #Romania #Events

Arnar Ingason

@[email protected]

#GitOps for #Kubernetes With Nixidy and #ArgoCD

Someone wrote about my project nixidy!

https://tech.aufomm.com/gitops-for-kubernetes-with-nixidy-and-argocd/

#K8s #Nix #NixOS

Arnar Ingason

@[email protected]

#GitOps for #Kubernetes With Nixidy and #ArgoCD

Someone wrote about my project nixidy!

https://tech.aufomm.com/gitops-for-kubernetes-with-nixidy-and-argocd/

#K8s #Nix #NixOS

Arnar Ingason

@[email protected]

#GitOps for #Kubernetes With Nixidy and #ArgoCD

Someone wrote about my project nixidy!

https://tech.aufomm.com/gitops-for-kubernetes-with-nixidy-and-argocd/

#K8s #Nix #NixOS

Home Manager News

@[email protected]

'programs.thunderbird' now supports declaration of calendars using 'accounts.calendar.accounts'.
#NixOS #Nix #HomeManager

Bruno Rodrigues

@[email protected]

I'll be giving a workshop on June 20th, 6 pm CEST, on Building fully reproducible DS env for R and #Python with #Nix, rix, rixpress!
Register or sponsor a student by donating to support Ukraine!
Details: bit.ly/3wBeY4S
Please share!
#RStats

Bruno Rodrigues

@[email protected]

NixOS

@[email protected]

Let's have a Nix meet-up in the Netherlands again!

We'll meet Thursday the 26th at the ProcoliX office in Dordrecht (near Rotterdam) and have two speakers:

* @kiara will talk about the @fediversity project
* @aequitas will talk about how Nix is used in the @basisbeveiliging project

After that there will be plenty of time to socialize with other Nix folks.

https://discourse.nixos.org/t/nixnl-meetup-dordrecht-2025-06-26/65544

#NixOS #Nix #ProcoliX #Fediversity #Basisbeveiliging #Meetup #Dordrecht

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

NixOS

@[email protected]

Let's have a Nix meet-up in the Netherlands again!

We'll meet Thursday the 26th at the ProcoliX office in Dordrecht (near Rotterdam) and have two speakers:

* @kiara will talk about the @fediversity project
* @aequitas will talk about how Nix is used in the @basisbeveiliging project

After that there will be plenty of time to socialize with other Nix folks.

https://discourse.nixos.org/t/nixnl-meetup-dordrecht-2025-06-26/65544

#NixOS #Nix #ProcoliX #Fediversity #Basisbeveiliging #Meetup #Dordrecht

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

NixOS

@[email protected]

Let's have a Nix meet-up in the Netherlands again!

We'll meet Thursday the 26th at the ProcoliX office in Dordrecht (near Rotterdam) and have two speakers:

* @kiara will talk about the @fediversity project
* @aequitas will talk about how Nix is used in the @basisbeveiliging project

After that there will be plenty of time to socialize with other Nix folks.

https://discourse.nixos.org/t/nixnl-meetup-dordrecht-2025-06-26/65544

#NixOS #Nix #ProcoliX #Fediversity #Basisbeveiliging #Meetup #Dordrecht

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

ALT text details

Illustration with headshots of the two speakers. Credits for Johan's picture: https://flickr.com/photos/dvanzuijlekom/

Nicolas

@[email protected]

I love using #Nix and #NixOS, and if it works it works great, but my biggest frustration with it is that whenever something doesn't work it turns out
to be a deeply cursed rabbit hole of a problem that's utterly undebuggable due to either bad error messages or a hard to understand and badly documented spaghetti mess of code, dependencies and components.

(For the source this current outbreak of frustration or if you want to try to help me take a look at https://discourse.nixos.org/t/removing-kwallet-from-system-closure-as-dependency-of-nextcloud-client/65601 🙃)

Home Manager News

@[email protected]

A new module is available: 'programs.ashell'.
#NixOS #Nix #HomeManager

Bruno Rodrigues

@[email protected]

Wednesday join me for a 3 hour workshop on how to use #Nix for reproducible data science! From reproducible development environments to setting up CI, Docker images and pipelines, we'll learn it all together!

https://rconsortium.github.io/RMedicine_website/workshops.html#rix-reproducible-data-science-environments-with-nix

Sandro

@[email protected]

@relay #NixOS #Nix #Dresden

Home Manager News

@[email protected]

@[email protected]

Love Nix & DEF CON? Want to share something interesting? Our CFP is open today and ends on July 5th. Be sure to register on Sessionize.

https://sessionize.com/NixVegas

#Nix #NixOS #DEFCON #NixVegas

jbz

@[email protected]

❄️ Why We’re Moving on From #Nix • Railway

｢ The biggest problem with Nix is its commit-based package versioning. Only the latest major version of each package is available, with versions tied to specific commits in the nixpkgs repo ｣

@[email protected]

if you use Matrix, and #RStats and are interested in #Nix or #NixOS, join our friendly matrix room

https://matrix.to/#/#r:nixos.org

Bruno Rodrigues

@[email protected]

if you use Matrix, and #RStats and are interested in #Nix or #NixOS, join our friendly matrix room

https://matrix.to/#/#r:nixos.org

Moritz Sanft

@[email protected]

Awesome talk on the importance of reproducible builds in measured boot / confidential computing environments by my colleagues @malte and @katexochen!

They talk about the (sad) reality of a fully open software stack and reproducible builds in practice, but also mention some positive examples and show how anyone can reproducibly build software (notably OS images) themselves.

Find the slides and VOD here: https://fosdem.org/2024/schedule/event/fosdem-2024-1769-reproducible-builds-for-confidential-computing-why-remote-attestation-is-worthless-without-it/

#fosdem #linux #cryptography #confidentialcomputing
#security #fosdem2024 #infosec #nix

ALT text details

My colleagues Paul and Malte showing their „thanks for listening slide“ at the talk

Pol Dellaiera

@[email protected]

I wrote a bash script that shows a nice diff and posts the result in a PR, just like that: https://github.com/drupol/infra/pull/105

Feel free to use it, improve it, ping me if you use it!

#nix #automatisation

0hlov3

@[email protected]

I've spent the last ~3 months using Nix and NixOS, and I've run into quite a few pain points.

I come from an Arch Linux background, very bleeding edge and I was surprised to find so many outdated packages in the Nix ecosystem. The state of nixpkgs also feels concerning, with 5000+ open pull requests (https://github.com/NixOS/nixpkgs/pulls).

The common argument that “Nix has more packages and no duplicates” also doesn’t hold up in my experience, for example, there are three different versions of signal-desktop in the Nix store with three different Versions.

Another frustration: if you want to install sublime4, you have to enable allowInsecure = true; because of some TLS issues, which doesn't sit right with me.

So now I'm wondering:
Am I just doing something wrong?
Or is Nix just not for me, since I lean more toward the bleeding edge side of things?

I'm trying to manage a shared setup for both nixos (amd64) and darwin (aarch64) from a single repo.

I really like the declarative idea, but right now I’m feeling more frustrated than productive.

Would love to hear from anyone who’s been in a similar spot or wants to chat about it.

#nixos #nix #nixpkgs #nixstore

Pierre Gambarotto

@[email protected] · Reply to Raito Bezarius's post

@raito
> we also are working on managing on-the-shelf switches using... #Nix expressions and colmena

Sounds very interesting ! What is your current targeted hardware ?

ruby

@[email protected]

new blogpost: fun with nixos machines in the cloud

https://foxgirl.engineering/blog/core-services-part-1

#blog #nix #nixos #homelab #indieweb

ruby

@[email protected]

new blogpost: fun with nixos machines in the cloud

https://foxgirl.engineering/blog/core-services-part-1

#blog #nix #nixos #homelab #indieweb

Martin

@[email protected]

If you'd like 130GB /nix volume in a standard free-tier GitHub runner ️❄️ then you want the Nothing but Nix GitHub action 🐙

Brutally purges unnecessary software from GitHub Actions runners 😈
Creates a /nix volume by merging free space from multiple partitions into one optimised file system ️🗄️
Build complete #NixOS configurations with the GitHub free-tier 💪

GitHub Actions runners come packed with pre-installed tools you'll likely never use in your #Nix workflow. The typical space available in a standard GitHub runner for /nix is 20GB. We deserve better 😁

Using the "Hatchet Protocol" 🪓 choose how brutal the purge will be, or opt to keep the hatchet sheathed to create an 85GB /nix volume in just 1 second ️⏱️

Learn more here 👇

Nothing but Nix - Removes all the cruft from a GitHub Actions runner to make the most space possible for Nix

Home Manager News

@[email protected]

A new module is available: `programs.mergiraf` Adds git integration for mergiraf to automatically resolve merge conflicts.
#NixOS #Nix #HomeManager

Paul Meyer

@[email protected]

NixOS 25.05 "Warbler" is now released! 🎉

https://nixos.org/blog/announcements/2025/nixos-2505/

#NixOS #nixpkgs #nix #distro #openSource #linux

github.com/ghostwriter

@[email protected]

Thank you for bringing #PHP into the #Nix ecosystem.

@Pol

Pol Dellaiera

@[email protected]

I just merged the PR adding Drupal "as a service" in NixOS. I guess this is going to be a life changer for many people!

https://github.com/NixOS/nixpkgs/pull/407034

Thanks to @abmurrow for your patience and dealing with me during the review, good job! #Nix #NixOS #drupal #PHP #PHPIsDead #ThatTagWasSarcastic

matthewcroughan

@[email protected]

nix.camp 2025 is on

27th August - 3rd of September @ https://birkenhack.org & https://astralship.org. An opportunity to hack on things before flying out to #nixcon!

Read more @ https://nix.camp

#nixcamp #nixos #nix #reproducibility

Andrew Zah

@[email protected]

Hi friends, yesterday the #Nix #Seoul Usergroup was created. Working with Nix over the last ~year has been exciting and I'd love to see more discussion around it in the local community.

The official account lives over at @nixseoul, and the official website at https://nixseoul.club/ !

Stephen McNamara

@[email protected]

Upgraded production server from #nixos 24.11 to 25.05 without a single issue🥲 its just so beautiful.

Base install started 23.05 making this the 4th major release upgrade without a single hiccup.

https://github.com/NixOS/nixpkgs/pull/407034

Thanks to @abmurrow for your patience and dealing with me during the review, good job! #Nix #NixOS #drupal #PHP #PHPIsDead #ThatTagWasSarcastic

Stephen McNamara

@[email protected]

Upgraded production server from #nixos 24.11 to 25.05 without a single issue🥲 its just so beautiful.

Base install started 23.05 making this the 4th major release upgrade without a single hiccup.

Thank you #nix #nixos you have given me the confidence in my systems I have always wanted 🫶

Paul Meyer

@[email protected]

Let's recap the last #NixOS release period from the Go perspective. There have been quite important changes to the Go ecosystem in nixpkgs, let's start with the one that will affect most users and maintainers of Go package:

buildGoModule now supports a self-referencing finalAttrs: parameter containing the final arguments including overrides. This allows packaging configuration to be overridden in a consistent manner by providing an alternative to rec {} syntax. This pattern will fix many issues people previously had overridden Go packages as it is adopted in nixpkgs. If you are maintaining a Go package, please check if you already updated it to use finalAttrs. The Go section of the manual has been updated for this and all examples now use finalAttrs.

#NixOS #Nix #nixpkgs #Go

Paul Meyer

@[email protected]

#NixOS #Nix #nixpkgs #Go

Paul Meyer

@[email protected] · Reply to Paul Meyer's post

@[email protected]

Now at #tdose in Katoen kamer, a workshop by @yvan on @nixos_org (who uses #Guix as a daily driver ;)
#Nix #NixOS

ALT text details

Picture of Yvan Sraka with thumbs up next to the opening slide with title "An introduction to Nix" and subtitle " Reproducible builds and deployments"

Yann Büchau

@[email protected] · Reply to Yann Büchau :nixos:'s post

#Python #poetry (and #uv I guess) is NOT a comprehensive tool to pin your environment! It is JUST a tool to help you manage some downstream Python packages, that's it. Use something more powerful like :nixos: #nix flakes or #apptainers or whatever floats your boat to do proper pinning of an environment - where you can pin your package manager itself.

@[email protected]

Le Replay est disponible :-)

https://videos.univ-grenoble-alpes.fr/video/33227-recherche_reproductible_dellaiera_nixmp4/

Dans cette présentation, nous discuterons de reproductibilité dans le contexte d’environnements de développement modernes, en nous appuyant sur une expérience concrète au sein de la Commission Européenne. Je partagerai mon parcours, les leçons tirées de mon mémoire de master, et comment des outils comme Nix peuvent radicalement transformer les pratiques de développement, en rendant les environnements plus fiables, plus transparents et plus collaboratifs. Une presentation à la croisée de l’open source et de l’ingénierie logicielle.

Merci @reproductible_fr !

Sources disponibles @ https://www.recherche-reproductible.fr/past-webinaires/2025/05/23/Env_Logiciels.html

#nix #softwareengineering

hexa-

@[email protected]

#Lix just merged an experimental integer coercion feature.

That's useful if you want to interpolate an integer into a string. In #nixlang you previously needed to explicitly call `toString` to achieve that cast.

And checking my personal configuration it looks like I can drop all `toString` usage in my configuration with this.

https://git.lix.systems/lix-project/lix/src/branch/main/doc/manual/rl-next/integer-coercion.md

#nixos #lix #nix

Home Manager News

@[email protected]

A new module is available: 'programs.hwatch'.
#NixOS #Nix #HomeManager

flashfox

@[email protected] · Reply to Sandro :nixos: :verified_gay:'s post

@sandro You could stop pretending that you are not part of the problem, for example by being actually helpful of github instead of dog piling onto new contributor until they burn out in two weeks in the name of whatever you and your club deems acceptable while reserving the right for yourself of pushing breaking changes five minutes before release because you just can't be bothered to care about the consequences.

@[email protected] · Reply to Pierre Bourdon's post

@delroth definitely a very subtle, yet detrimental way of breaking compatibility with cpp #nix.

Neo

@[email protected] · Reply to Raito Bezarius's post

@raito @rriemann @Linux @eu_os this PR is great, it covers what I meant. “Nix as LEGO for building your own Linux based OS”. I like that analogy. It’s a good one. I must repeat that I am not advocating #NixOS as a base OS for EU OS proof of concept. I suggest looking into using #Nix to build and maintain a lean base.

Raito Bezarius

@[email protected] · Reply to Robert Riemann 🇪🇺's post

@rriemann @neo @Linux @eu_os isn't this disingenuous? you are comparing migrations to Linux and you are asking to an explicit migration to NixOS? it's not like your bootc thing was tried in public sectors?

either way, what Neo proposed was to use Nix and this was successfully used at the European Commission, Target, Shopify, Mercury and many more companies who document their usage of #Nix

even Google is using #Nix these days, so…

Neo

@[email protected] · Reply to Linux Is Best's post

@Linux @rriemann @eu_os I agree with the point raised about #NixOS and have suggested looking into this a few times wrt EU OS. Using #Nix as build tool really is a very unique approach to building a Linux based OS and completely cuts out the notion of a “distribution”. It takes a more direct path from the upstream source code (kernel, systemd, …) to a working OS. Thus entirely sidestepping the raised concerns about another distro used as a base.

maralorn

@[email protected]

I will be teaching the #Nix track at #zurihac2025 🇨🇭 ⛰️

https://zfoh.ch/zurihac2025/

Looking forward to showing you all the best(TM) way to setup #Haskell packages with Nix 😎 Maybe we can even upstream some Haskell packages to #NixOS? 😆

I jumped in a bit on short notice and am still collecting ideas. So let me know what you would like to learn!

#zurihac

maralorn

@[email protected]

I will be teaching the #Nix track at #zurihac2025 🇨🇭 ⛰️

https://zfoh.ch/zurihac2025/

Looking forward to showing you all the best(TM) way to setup #Haskell packages with Nix 😎 Maybe we can even upstream some Haskell packages to #NixOS? 😆

I jumped in a bit on short notice and am still collecting ideas. So let me know what you would like to learn!

#zurihac

maralorn

@[email protected]

Why are there 13 competing standards for pre commit hooks?

There is https://pre-commit.com/ which is great and has dozens of hooks, so great that there is https://github.com/cachix/git-hooks.nix which nixifies it and has to declare all hooks again. Okay, now its nixified, that’s better I guess. Oh, what’s that hook? https://treefmt.com/ how useful you can collect different formatters together. Oh, wait, there is https://github.com/numtide/treefmt-nix which nixifies that again, declare dozens of formatters in #nix again …

github.com/ghostwriter

@[email protected]

Thank you for bringing #PHP into the #Nix ecosystem.

@Pol

Chris McDonough ✅

@[email protected]

NixOS 102: NixOS on a Digital Ocean Droplet

All hail nixos-generators!

https://www.youtube.com/watch?v=L1E8yBqDGFk

#nix #nixos

nebucatnetzer

@[email protected]

Ticket sales for #NixCon2025 are open! 🎉 🎆

https://discourse.nixos.org/t/ticket-sales-started-for-nixcon-2025/64756

#NixCon #Nix #NixOS

nebucatnetzer

@[email protected]

Ticket sales for #NixCon2025 are open! 🎉 🎆

https://discourse.nixos.org/t/ticket-sales-started-for-nixcon-2025/64756

#NixCon #Nix #NixOS

nebucatnetzer

@[email protected]

Ticket sales for #NixCon2025 are open! 🎉 🎆

https://discourse.nixos.org/t/ticket-sales-started-for-nixcon-2025/64756

#NixCon #Nix #NixOS

Chris McDonough ✅

@[email protected]

NixOS 102: NixOS on a Digital Ocean Droplet

All hail nixos-generators!

https://www.youtube.com/watch?v=L1E8yBqDGFk

#nix #nixos

Chris McDonough ✅

@[email protected]

I was encouraged by the new "--flake" option that got slipped in to an update to nixos-generate-config. Maybe 30 releases from now I'll be able to make videos which don't apologize for using them.

#nix #nixos

Chris McDonough ✅

@[email protected]

I was encouraged by the new "--flake" option that got slipped in to an update to nixos-generate-config. Maybe 30 releases from now I'll be able to make videos which don't apologize for using them.

#nix #nixos

Home Manager News

🎊 And NixOS mailserver, too! 🦾 https://nixos-mailserver.readthedocs.io/en/nixos-25.05/release-notes.html #nix #nixos #mailserver #linux #release

Paul Meyer

@[email protected]

NixOS 25.05 "Warbler" is now released! 🎉

https://nixos.org/blog/announcements/2025/nixos-2505/

#NixOS #nixpkgs #nix #distro #openSource #linux

Paul Meyer

@[email protected]

NixOS 25.05 "Warbler" is now released! 🎉

@[email protected]

NixOS 101: Using nix-serve as a Local Binary Cache

Our own @arichtman is mentioned at the end.

https://youtu.be/-Ck0c9bpzjw

#nix #nixos

Damian Poddebniak @ FOSDEM

@[email protected]

I... uhm... is it normal that you kind of want to use #Nix for everything only after a few learning sessions? I barely finished a few simple things but am already convinced Nix can solve all my computer issues.

Good dev containers? Nix. Reproducible deployment of machines? Nix. Full product life-cycle management? Nix. Container platform? Nix. IaC? Nix. Ansible? Nix. Terraform? Nix.

Help...

Chris McDonough ✅

@[email protected]

NixOS 100: Defining and Using Custom NixOS Options

https://www.youtube.com/watch?v=Z5vyoBqYfuE

#nix #nixos

Chris McDonough ✅

@[email protected]

NixOS 100: Defining and Using Custom NixOS Options

https://www.youtube.com/watch?v=Z5vyoBqYfuE

#nix #nixos

Paul Meyer

@[email protected]

For many, overlays, and fixed-point functions as underlying concept, are hard to gasp in #Nix.

I found the documentation to be actually quite good in this case, checkout the function docs of fix and extends (and read in this order). Both have great examples/steps that guide you through, which was really helpful to me.

#Nix #NixOS #nixpkgs

Home Manager News

@[email protected]

A new module is available: `programs.pgcli` pgcli is a Python CLI that lets you connect to Postgres databases and run queries with syntax highlighting and auto-completion.
#NixOS #Nix #HomeManager

Martin

@[email protected]

If you'd like 130GB /nix volume in a standard free-tier GitHub runner ️❄️ then you want the Nothing but Nix GitHub action 🐙

Brutally purges unnecessary software from GitHub Actions runners 😈
Creates a /nix volume by merging free space from multiple partitions into one optimised file system ️🗄️
Build complete #NixOS configurations with the GitHub free-tier 💪

Using the "Hatchet Protocol" 🪓 choose how brutal the purge will be, or opt to keep the hatchet sheathed to create an 85GB /nix volume in just 1 second ️⏱️

Learn more here 👇

Nothing but Nix - Removes all the cruft from a GitHub Actions runner to make the most space possible for Nix

Home Manager News

@[email protected]

A new module is available: `programs.foliate` Foliate is a modern e-book reader tailored for GNOME.
#NixOS #Nix #HomeManager

Yann Büchau

@[email protected]

Has *anyone ever* gotten :nixos: #nix to automatically fetch things from another of your machines instead of cache.nixos.org and/or rebuilding everything _again_ locally?

The manual¹ claims one can use --substituers ssh://yourmachine, but (of course) that doesn't work. Terrible or no error messages, that weird 'SSH stdout first line:' message, different port only settable via NIX_SSHOPTS='-p 1234', hangs indefinitely at `querying info about missing paths`...

😩

¹https://nix.dev/manual/nix/2.24/package-management/ssh-substituter.html

#nixos

Julia Mono (she/they)

@[email protected]

I am pretty new to #NixOS - but while I wait for my first PR (https://github.com/NixOS/nixpkgs/pull/400046) to be reviewed, I want to use the package already.

currently I add -I nixpkgs=... to my rebuilds but it feels wrong. Especially since #nix seems to be made for flexible things like this.

Where would I start finding this out? Is it advisible to get familiar with nix lang first and THEN try stuff like this or are there good resources for 'learn as you go' - which usually works better for me.

Jake Hamilton

@[email protected]

Are you using #Nix Flakes? Can you let me know what version your lock file is by running this command?

```
cat ./flake.lock | grep -o '"version": [0-9]'
```

Option	Voters
<= 3	0 (0%)
4	0 (0%)
>= 5	40 (78%)
View Results	11 (22%)

paepcke +

@[email protected]

https://nixcademy.com/posts/secure-supply-chain-with-nix/

#nix #nixos #FormalVerifcation

Beady Belle Fanchannel

@[email protected] · Reply to Jake Hamilton's post

@jakehamilton not the article we need, but the article we deserve

#nix #nixos

Home Manager News

@[email protected]

A new module is available: 'programs.halloy'. Halloy is a modern IRC client supporting IRCv3 features, with a clean and intuitive user interface. It provides features like SASL authentication, message highlights, nick colors, emoji support, URL previews, and more.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'programs.numbat'.
#NixOS #Nix #HomeManager

Jake Hamilton

@[email protected]

Flakes Have Failed

https://kilo.bytesize.xyz/flakes-have-failed

#Nix #NixOS

Jake Hamilton

@[email protected]

Flakes Have Failed

https://kilo.bytesize.xyz/flakes-have-failed

#Nix #NixOS

pinage404.rss

@[email protected]

As of today, my computer can __nicely__ read aloud for me !

I'm lazy, i read slowly, so i don't like reading, i skip a lot of articles

I have been looking for a solution for several months

#Accessibility #A11y #Orca #WebBrowser #ZenBrowser #Firefox #Piper #Pied #SpeechAI #AI #Nix #NixOS

Home Manager News

@[email protected]

A new module is available: 'programs.wayprompt'. Wayprompt is a password prompter for Wayland, including a drop-in replacement for GnuPG’s pinentry ('pinentry-wayprompt'). Note that the Wayland compositor must support the Layer Shell protocol.
#NixOS #Nix #HomeManager

niko

@[email protected]

Polish below / Polski poniżej, boosts appreciated!

I’m very glad to announce we have an official date for the next Nix User Group Poland Meetup! If you happen to be around Gdańsk, Warsaw, or Poznan on the 23rd of May, please come to either HS3, HSWaw, or HSPoz and join us for some great talks, great people, and great Nix. We’ll be starting at 17.00.
We coordinated between the three hackerspaces to connect them through streams, so any talk in any place will be appreciated from all 3.
We’re still open for more talks, so be sure to use the submission form or contact me directly if you want to share anything nix-related with our community.

More info at our channels:
Discord: https://discord.gg/eJnKKjQ3Bc
Matrix: #nug-poland:matrix.org

We hope to see you there!

=======

Z przyjemnością ogłaszam, że mamy datę następnego meetup-u Nix User Group Polska! Jeśli będziesz w okolicy Gdańska, Warszawy, czy Poznania 23 maja serdecznie zapraszamy do jednego z HS3, HSWaw, i HSPoz na świetne prelekcje, do świetnych ludzi, i na świetne Nixowanie.
Zaczynamy o 17.00.
Meetup będzie odbywać się równocześnie we wszystkich 3 hackerspejsach, które będą połączone streamami, więc każda prelekcja z każdej lokalizacji, będzie oglądana w każdej innej.
Wciąż jesteśmy otwarci na więcej prezentacji, więc jeśli masz coś około-Nixowego do podzielenia się z community, zapraszamy do wypełnienia formularza, albo skontaktowania się ze mną.

Więcej info na naszych kanałach:
Discord: https://discord.gg/eJnKKjQ3Bc
Matrix: #nug-poland:matrix.org

Do zobaczenia!

#nix #meetup #nixos

Grimmauld

@[email protected]

Yay! My recent apparmor update PR to #nixos [1] has now hit the nixos-unstable repository! This means 4.1.0 is available, with various improvements.

With that PR, i completely rewrote the #nix packaging. It now supports pkgsMusl, pkgsCross and pkgsLLVM. It has the build checks flipped on, and packaging is massively simplified.

Making all this work wasn't trivial, and some oversights were made. Those have been corrected in follow-ups, though the functionality should be available already. Do report issues with this update!

Sadly, 4.1.0 does not yet bring the needed optimizations to the alias system that are necessary to efficiently confine all of the nix store effectively. That part is still a WIP.

I also have to say: I am impressed with apparmor upstream. While doing this update, i noticed the parser check suite failing when compiling against Musl libc. Apparmor is maintained by cannonical devs, ubuntu does not use musl. Yet they were willing to listen, debug and fix these issues. While not everything has been fixed yet (this is an ongoing effort), it is nice to see upstream developers wanting to support the "weird" platforms like musl nixos.

[1] https://github.com/NixOS/nixpkgs/pull/400430

niko

@[email protected]

Polish below / Polski poniżej, boosts appreciated!

More info at our channels:
Discord: https://discord.gg/eJnKKjQ3Bc
Matrix: #nug-poland:matrix.org

We hope to see you there!

=======

Więcej info na naszych kanałach:
Discord: https://discord.gg/eJnKKjQ3Bc
Matrix: #nug-poland:matrix.org

Do zobaczenia!

#nix #meetup #nixos

Areskul

@[email protected]

#nix #nixos

Areskul

@[email protected]

#nix #nixos

NixOS

@[email protected]

Join us for the 6th Zürich ZHF hackathon on May 24-25! Help prepare for #NixOS 25.05 Warbler release: fix bugs, learn #Nix, network with contributors! Bring a friend, and meet the community. Details https://discourse.nixos.org/t/2025-05-24-25-zhf-25-05-hackathon-ost-zurich-rapperswil-jona/62281

Sandro

@[email protected]

#TIL: Files in the #nix store link directory always start with a 1.

eg.: /nix/store/.links/1zzzy....

NixOS

@[email protected]

🚨 Only 10 days left to apply for Summer of Nix 2025! 🚨
Are you a student or early-career dev passionate about #OSS?
Join a paid summer program to work on real #FOSS projects, learn #Nix with experienced mentors, and connect with a global community.
Apply by May 12: https://github.com/ngi-nix/summer-of-nix
#NixOS

vascorsd

@[email protected]

Opam's Nix system dependency mechanism

https://ryan.freumh.org/opam-nix.html

#ocaml #opam #nix

vascorsd

@[email protected]

Opam's Nix system dependency mechanism

https://ryan.freumh.org/opam-nix.html

#ocaml #opam #nix

Chris McDonough ✅

@[email protected]

NixOS 98: Flox vs Devenv

https://www.youtube.com/watch?v=ovYw7cEG8hs

#Nix #NixOS #Flox #Devenv

Chris McDonough ✅

@[email protected]

NixOS 98: Flox vs Devenv

https://www.youtube.com/watch?v=ovYw7cEG8hs

#Nix #NixOS #Flox #Devenv

Sandro

@[email protected]

If only #Helm would be more like #Nix with #Flakes

Sandro

@[email protected]

If only #Helm would be more like #Nix with #Flakes

NixOS

@[email protected]

North County #Nix had its first 2025 meetup on April 20th!
Thanks to Connor, Grant, Tristan, and Dan for joining the fun!
#NixOS
More details: https://discourse.nixos.org/t/north-county-nix-2025-04-20-carlsbad-ca/63020

Khleedril

@[email protected] · Reply to Jan <3's post

@janvhs #guix came into existence to make a better #nix. Using Guile scheme as the configuration language, as well as, increasingly, the implementation language of #guix itself, the system is much more powerful and easier to adapt to customization. This has led to great things, which #nix scrambles to keep up with.

Jan <3

@[email protected]

Honest question: What is the reason for #Guix to exist? Is it just because #Nix is not GPL licensed or do they have a crazy unique feature?

Home Manager News

@[email protected]

`services.espanso` now supports wayland. This is enabled by default on Linux as `services.espanso.waylandSupport = true;`. Depending on your graphical session type, you may disable one of `services.espanso.x11Support` and `services.espanso.waylandSupport` to reduce the closure size of espanso on your system. Both x11 and wayland versions come enabled by default on Linux.
#NixOS #Nix #HomeManager

@[email protected]

OH: #nix is an fd opening machine, we can already contrive circumstances that blow it up

Paul Meyer

@[email protected]

SaltSprint, a new NixOS hackathon in Halle (Saale), Germany, announced!

From June 30 – July 4, 2025, a week of intense Nix hacking, collaboration, and knowledge sharing in central Germany.

https://saltsprint.org/

The sprint is hosted by https://flyingcircus.io/.

#Nix #NixOS #OpenSource #Hackathon

piegames

@[email protected]

#Nix, or as I call it, the Bash Templating Language

piegames

@[email protected]

#Nix, or as I call it, the Bash Templating Language

Paul Meyer

@[email protected]

SaltSprint, a new NixOS hackathon in Halle (Saale), Germany, announced!

From June 30 – July 4, 2025, a week of intense Nix hacking, collaboration, and knowledge sharing in central Germany.

https://saltsprint.org/

The sprint is hosted by https://flyingcircus.io/.

#Nix #NixOS #OpenSource #Hackathon

Paul Meyer

@[email protected]

SaltSprint, a new NixOS hackathon in Halle (Saale), Germany, announced!

From June 30 – July 4, 2025, a week of intense Nix hacking, collaboration, and knowledge sharing in central Germany.

https://saltsprint.org/

The sprint is hosted by https://flyingcircus.io/.

#Nix #NixOS #OpenSource #Hackathon

Chris is.

@[email protected]

I am once again imploring the #nix development community to STOP COMMITTING DIRENV CONFIGURATION THAT ASSUMES NIX DEVELOPMENT.

I just found one where their .envrc _actually tries to install nix_.

Fuck all the way off with that. If I'm looking into your library, I am not also looking into what basically at this point looks like a cult.

Paul Meyer

@[email protected] · Reply to Paul Meyer's post

In the same chat 😆 :

@ronefroni:

Nix or Docker, if you would have to choose one?

Kelsey:

I'm choosing Docker.

#Nix #NixOS #Docker #Kubernetes

Paul Meyer

@[email protected]

You don't have to chase the commercial endeavor, but it may come [...] to you. [...] So I would think of it this way: If you want there to be peace in the project, give people extension points where necessary, so that everything doesn't have to flow into core in order to feel like it's a first class citizen. - @kelseyhightower at PlanetNix 2025

Quite some interesting takes by Kelsey on the Nix project. I hope we can get to a point where commercial and non-commercial interests can co-exist in the project. Watch the full thing here:

Fireside Chat with Kelsey Hightower: An Outsider’s Look at Nix
https://youtu.be/caxcawUCSZ8

#Nix #NixOS #Kubernetes #OpenSource #SCALE #PlanetNix @planetnix

Home Manager News

@[email protected]

A new module is available: `programs.television` television is a cross-platform, fast and extensible general purpose fuzzy finder TUI.
#NixOS #Nix #HomeManager

Thor A. Hopland

@[email protected]

In #NixOS the snow theme was used to illustrate that each flake is a perfect recreation, which didn't aptly describe this glorified build system.

The best analogy (even within the #NixOS community) has been the cooking analogy.

#Nix are the kitchen utensils, #Nixpkgs the recipes, #NixStore the pantry, packages ingredients, profiles are tables and derivations are dishes.

This proves that we need #marketing, because #engineers suck at naming things.

https://youtu.be/aifMfQepzjo
@BrodieOnLinux

Home Manager News

@[email protected]

A new module is available: 'programs.clock-rs'. clock-rs is a modern, digital clock that effortlessly runs in your terminal.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'programs.wallust'. Wallust generates colors from an images, similar to pywal.
#NixOS #Nix #HomeManager

Abhinav 🌏

@[email protected]

I wrote a note about how to run a #Goaccess server on #NixOS: https://notes.abhinavsarkar.net/2025/goaccess-server-on-nixos

#nix #selfhosting #programming #blog

Abhinav 🌏

@[email protected]

I wrote a note about how to run a #Goaccess server on #NixOS: https://notes.abhinavsarkar.net/2025/goaccess-server-on-nixos

#nix #selfhosting #programming #blog

Home Manager News

@[email protected]

A new module is available: 'programs.inori'. inori is a client for the Music Player Daemon (MPD)
#NixOS #Nix #HomeManager

Linux Is Best

Grimmauld

@[email protected]

I have to say, my automatic dependency scanner [1] for #nix packages is already working better than expected!

I will give a talk about the tool at @cccda this Monday in the hopes of getting more people excited for this cleanup work, and to get ideas about improving the tool.

[1] https://github.com/LordGrimmauld/nix-check-deps

Paul Meyer

@[email protected]

For many, overlays, and fixed-point functions as underlying concept, are hard to gasp in #Nix.

#Nix #NixOS #nixpkgs

Paul Meyer

@[email protected]

For many, overlays, and fixed-point functions as underlying concept, are hard to gasp in #Nix.

#Nix #NixOS #nixpkgs

vae

@[email protected]

nix question

I've been staring at this for too long and can't understand what I'm doing wrong.. Can someone with more brain halp plz? :3

    environment.systemPackages = with pkgs;
      [
        ...
      ]
      ++ lib.mkIf config.someoption.enable [
        ...
      ];

Gives me this:

error: expected a list but found a set: { _type = "if"; condition = «thunk»; content = «thunk»; }

I basically copied this from my old config that I know used to work (though it had been commented out for a few months, so maybe something's changed?)

Using latest lix, if that matters.

(bbl, sleep :neocat_flop_sleep:

)

#nix #NixOS

Atemu

@[email protected]

Any way to trigger a command in #NixOnDroid with the press of a button on the home screen?

For #termux there is the widget app but it doesn't appear to work with #nix-on-droid.

I really don't want to have to install and maintain #gitAnnex using some install script and some prebuilt global FHS binaries when I could simply get it from #nixpkgs.

Jake Hamilton

@[email protected]

🚨WARNING🚨

Apparently some #Nix / #NixOS matrix room(s) have gotten csam spam. I have not verified this claim myself, but honestly, we can all probably just not check matrix for a few days until hopefully things are back to normal.

I do *not* know what utilities #Matrix provides to prevent the proliferation of this information. If you joined the room from a different home server then your server may have synchronized the material to your infrastructure.

I think the safest course of action is not opening a matrix client for a few days...

Morten Linderud

@[email protected]

> Fedora change aims for 99% package reproducibility

Nice, cool. Let's check 🟧.

> I often see initiatives and articles like this but no mention of #Nix. [...] Should it [Fedora] adopt an alternate package manager to achieve this with less headache?

Ah, yes.

Fixing your existing package manager is *clearly* more of a headache than changing the entire package manager.

Home Manager News

@[email protected]

A new module is available: 'services.way-displays'. A service to automatically configure your displays on wlroots-based wayland compositors.
#NixOS #Nix #HomeManager

George Macon

@[email protected]

I got curious and tried to configure #NixOS to run the #Nix daemon as a non-root user. It *kinda* worked; the deamon starts up, but fork-bombs the system as soon as you try to do anything: https://github.com/gmacon/nix-daemon-rootless

Dresden Systems Meetup

@[email protected]

Hey everyone!
#Nix and #NixOS enable declarative systems and reproducible builds — topics that are especially interesting to the systems community.

Next Tuesday (2025-04-15), Cyberus Technology is hosting a Nix #Meetup, and it's open to everyone!
If you're interested in joining, just react to this message with an emoji. 👋

📍 Cyberus Technology Office, Zwickauer Straße 46
⏰ Tue., April 15, 18-22 o'clock
🍕 Pizza and drinks included

Dresden Systems Meetup

@[email protected]

Hey everyone!
#Nix and #NixOS enable declarative systems and reproducible builds — topics that are especially interesting to the systems community.

Next Tuesday (2025-04-15), Cyberus Technology is hosting a Nix #Meetup, and it's open to everyone!
If you're interested in joining, just react to this message with an emoji. 👋

📍 Cyberus Technology Office, Zwickauer Straße 46
⏰ Tue., April 15, 18-22 o'clock
🍕 Pizza and drinks included

Nina

@[email protected]

If you've ever wondered what the hell string contexts are in #nix, this post is quite a good read:

@[email protected]

Today I got to know that #nix 2.27 added #blake3 support and proper submodules and lfs support to #flakes! 🎉

Grimmauld

@[email protected]

I have to say, my automatic dependency scanner [1] for #nix packages is already working better than expected!

I will give a talk about the tool at @cccda this Monday in the hopes of getting more people excited for this cleanup work, and to get ideas about improving the tool.

[1] https://github.com/LordGrimmauld/nix-check-deps

Grimmauld

@[email protected]

I have to say, my automatic dependency scanner [1] for #nix packages is already working better than expected!

I will give a talk about the tool at @cccda this Monday in the hopes of getting more people excited for this cleanup work, and to get ideas about improving the tool.

[1] https://github.com/LordGrimmauld/nix-check-deps

Grimmauld

@[email protected]

I have to say, my automatic dependency scanner [1] for #nix packages is already working better than expected!

I will give a talk about the tool at @cccda this Monday in the hopes of getting more people excited for this cleanup work, and to get ideas about improving the tool.

[1] https://github.com/LordGrimmauld/nix-check-deps

Home Manager News

@[email protected]

A new module is available: 'programs.smug'. Session manager and task runner for tmux written in Go. See https://github.com/ivaaaan/smug for more information.
#NixOS #Nix #HomeManager

daniel

@[email protected]

My current mood is: do not use python3 when building Python packages, use the generic python parameter instead

#nix #nixpkgs

daniel

@[email protected]

My current mood is: do not use python3 when building Python packages, use the generic python parameter instead

#nix #nixpkgs

Home Manager News

@[email protected]

Jq module now supports color for object keys Your configuration will break if you have defined the "programs.jq.colors" option. To resolve this, please add `objectKeys` to your assignment of `programs.jq.colors`.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new service is available: 'services.home-manager.autoExpire'. A service that allow to automatically expire (and optionally clean-up Nix's store) old Home-Manager generations.
#NixOS #Nix #HomeManager

Brian McKenna

@[email protected]

The start of native Windows support for #Nix is amazing: https://github.com/NixOS/nix/pull/8901 - still a huge amount of work to do: process management being the next big thing I see

Home Manager News

@[email protected]

A new module is available: 'programs.streamlink'. Streamlink is a CLI utility which pipes video streams from various services into a video player.
#NixOS #Nix #HomeManager

Robert Hensing

@[email protected] · Reply to Katzenmann's post

@katzenmann @nixos_org One of the hurdles is stabilizing an underlying feature like fetchTree. @domenkozar is doing some great work on that with an alternate implementation of it in #SNix, exposing some of the unfortunate choices that all #Nix implementations should backtrack on.

This may lead to a small change in behavior in Flakes that would not be considered acceptable normally for non-experimental parts of Nix, but will be necessary in order to fix various problems that exist within Flakes.

For a user of Flakes, this means that you may have to put up with a binary cache miss, or synchronizing your Nix update with your team, but you shouldn't have to overhaul your code or anything.

Jake Hamilton

@[email protected]

What do you need from #Nix flakes? What would get you to replace them with something else?

Jake Hamilton

@[email protected]

I wish we could put dynamic things in module imports. I understand why it doesn't work, but it would be so nice to add something like `config.mymodules.moduleA` to the list and not have to think about things...

#Nix #NixOS

Arik Grahl

@[email protected]

Thank y'all for the first day of #Rejekts2025 with great talks and inspiring conversations!

I am excited that I got a spot for the #LightningTalks.
Looking forward to present you #Kubenix a tool leveraging #NixOS modules to declare #K8s workloads fully declarative.
I will also show how its #Helm integration essentially bridges the #CloudNative and #Nix ecosystem effectively, while offering additionally type safety.

See you at 18:15 in the hall #TheNash!

Arik Grahl

@[email protected]

Thank y'all for the first day of #Rejekts2025 with great talks and inspiring conversations!

See you at 18:15 in the hall #TheNash!

@[email protected]

A new module is available: 'programs.sesh'. Sesh is a CLI that helps you create and manage tmux sessions quickly and easily using zoxide. See https://github.com/joshmedeski/sesh for more.
#NixOS #Nix #HomeManager

Justinas

@[email protected]

Given that #Nix's `builtins.tail` is said to be inefficient and best avoided (https://noogle.dev/f/builtins/tail), what alternative method should one use to "manually iterate" through a list?

Nixpkgs' `lib.lists` doesn't care much and uses `head` and `tail`. https://github.com/NixOS/nixpkgs/blob/1b1a61b803c2fffb230262ac0c9ac0ab9dae6023/lib/lists.nix#L1176-L1177

NixOS

@[email protected]

Mark your calendars! #NixCon 2025 is set:
📍 Where: OST, Rapperswil-Jona, Switzerland
📅 When: September 5-7, 2025 (Fri-Sun)

Tag your fellow Nix fans, spread the word, and let’s make this the best NixCon yet! More details here: https://discourse.nixos.org/t/nixcon-2025-5-7-september-in-rapperswil-jona-switzerland/62255
#Nix #NixOS

Areskul

@[email protected]

#nixos #nix

Lobsters

@[email protected]

Sécurix, a NixOS-based secure operating system tailored for small to medium-sized teams https://lobste.rs/s/9tmwpa #nix
https://github.com/cloud-gouv/securix

Lobsters

@[email protected]

Sécurix, a NixOS-based secure operating system tailored for small to medium-sized teams https://lobste.rs/s/9tmwpa #nix
https://github.com/cloud-gouv/securix

NixOS

@[email protected]

Casual #NixOS Meetup in Vienna! Join an informal NixOS meetup to chat about all things #Nix & NixOS!

📅 April 7, 2025 | 🕕 18:00 | 📍 GT_, Augasse 2-6, 1090 Wien
https://discourse.nixos.org/t/community-calendar/18589/195

futurile

@[email protected]

#guix social talk this week by @paulbutgold on self-hosting @forgejo using #oci / #docker #containers

His Gocix project brings the power of declarative configuration to running container services.

Details on the Wiki or register at the Meetup:

- https://libreplanet.org/wiki/Group:Guix/GuixSocial

- https://www.meetup.com/guix-social/events/306340848/

@fnat

#guix #nix #linux #containers #docker #oci #scheme #guile #selfhosting #forge #foss

ALT text details

Image of the title screen of a talk. Consists of a picture of Giacomo Leidi, and the title of the talk "Self-hosting Forgejo in Guix using OCI Containers" with a sub-heading of "Declarative Docker and OCI Container Services"

Paul Meyer

@[email protected]

Nice, lib.packagesFromDirectoryRecursive now supports nested scopes!

packagesFromDirectoryRecursive transforms a directory tree of packages into a nested attribute set of derivations. You can use it to manage a package set in a similar way to by-name in nixpkgs (without the sharding part). The package files in tree must be suitable for callPackage.

Subdirectories in the tree result in nested attribute sets. In the following example, packages d, e and f will be in a nested attribute set called my-namespace.

my-packages
├── a.nix
├── b.nix
├── c
│  ├── my-extra-feature.patch
│  ├── package.nix
│  └── support-definitions.nix
└── my-namespace
   ├── d.nix
   ├── e.nix
   └── f
      └── package.nix

Previously, this would only use one scope (my-packages), so e could only depend on d as my-packages.d. With the introduction of nested scopes, e can refer to d within the same scope directly.

PR: https://github.com/NixOS/nixpkgs/pull/392800

function doc on noogle (which isn't yet updated for the new behavior): https://noogle.dev/f/lib/packagesFromDirectoryRecursive

#Nix #NixOS #nixpkgs

Yvan Sraka

@[email protected] · Reply to Yvan Sraka's post

We are hosting the 10th iteration (I forgot to toot about the previous one) of our Brussels #Nix / #NixOS / #Guix User Group Meetup next Friday, March 28th, at @HSBXL!

The lightning talks planned so far are:
- Local DNS server with CoreDNS by Hugo
- Self-hosting a Mastodon instance by @xavier and myself :)

Home Manager News

@[email protected]

A new module is available: 'services.mpdscribble'. A MPD client which submits information about tracks being played to a scrobbler (e.g. last.fm)
#NixOS #Nix #HomeManager

Yvan Sraka

@[email protected] · Reply to Yvan Sraka's post

We are hosting the 10th iteration (I forgot to toot about the previous one) of our Brussels #Nix / #NixOS / #Guix User Group Meetup next Friday, March 28th, at @HSBXL!

The lightning talks planned so far are:
- Local DNS server with CoreDNS by Hugo
- Self-hosting a Mastodon instance by @xavier and myself :)

Ivan

@[email protected]

You *should* be very careful which #Nix substituters (caches) you trust since you have to trust who can push to them. Effectively you are trusting them with root on your machine.

You *should* be wary of “community” caches if you don’t want to have to vet who has access there.

You *should* build things from source yourself if you do not wish to trust the #NixOS build farm and Hydra infrastructure (or to lessen the load on their CDN)

What you should ABSOLUTELY NOT do is trust some random VC backed company (which may or may not have a business relationship with military-industrial-complex contractors) over the actual NixOS project which stewards the actual sources you trust to be secure in the first place

Ivan

@[email protected]

You *should* be very careful which #Nix substituters (caches) you trust since you have to trust who can push to them. Effectively you are trusting them with root on your machine.

You *should* be wary of “community” caches if you don’t want to have to vet who has access there.

You *should* build things from source yourself if you do not wish to trust the #NixOS build farm and Hydra infrastructure (or to lessen the load on their CDN)

Home Manager News

@[email protected]

The following default values change from 'true' to 'false': - programs.zellij.enableBashIntegration - programs.zellij.enableFishIntegration - programs.zellij.enableZshIntegration
#NixOS #Nix #HomeManager

Zack Weinberg

@[email protected]

[current mood: https://xkcd.com/349/ ]

I need someone who already has an account on https://git.lix.systems/ to file a bug report for me. I have repeatedly tried to create an account and the email confirmation email just never shows up.

I would also accept "manual creation of a non-github-based account" for me (as per the FAQ). No, I can't use Matrix to ask for one. I don't want to talk about that.

#nix #lix

Zack Weinberg

@[email protected]

on to the next #nix puzzle

(for arbitrary nixos system configuration including disko-based declarative partitioning, how to enable generating *both* test VMs and installers? the obvious answer would seem to be "nixos-generators" but `nixosGenerate { format = "vm-nogui"; ... }` ignores disko configuration inside the `...`.)

Zack Weinberg

@[email protected]

#Nix question: Is there any way at all to make "nix run" not insist on everything being committed to git? I want to be able to test my changes *before* I commit them.

futurile

@[email protected]

#guix social talk this week by @paulbutgold on self-hosting @forgejo using #oci / #docker #containers

His Gocix project brings the power of declarative configuration to running container services.

Details on the Wiki or register at the Meetup:

- https://libreplanet.org/wiki/Group:Guix/GuixSocial

- https://www.meetup.com/guix-social/events/306340848/

@fnat

#guix #nix #linux #containers #docker #oci #scheme #guile #selfhosting #forge #foss

ALT text details

Karl Voit

@[email protected] · Reply to Elias Probst's post

@eliasp While I know what you mean, I strongly disagree with that truncation.

First, the nixos hardware module needs to exist & support all of your particular hardware. This isn't a given thing depending on the HW you are about to use.

Secondly, there are still too many settings you need to do manually such as xfce environments, lots of app settings, ...

I started with NixOS in the naïve assumption that it is allowing me to define everything across all of my computers. I failed miserably & with the next opportunity, I'll switch back to Debian.

However, if you're totally open to let the #NixOS community to choose the hardware platform (devices that do have a HW config module which supports all features), desktop environment (sway?) and all apps for you, then you're probably fine with "everything in your #Nix configuration". If not, you do spread misleading vibes here - so to say.

And yes, there's still the issue with not being to run #Python in a normal way.

HTH

flashfox

@[email protected]

I though it had been a while without any #NixOS drama, but of course the universe provides.

Guess what, telemetry in #devenv is coming back. Again, it's Opt-Out, not Opt-In.
The difference: this time that work is sponsored by the NixOS Foundation.

https://github.com/cachix/devenv/pull/1776/files

https://oceansprint.org/reports/2025/

#nix #nixpkgs

@[email protected] · Reply to Paul Meyer's post

If you want to learn more about gobuild.nix and why we need it, checkout my talk at FOSDEM this year:
https://fosdem.org/2025/schedule/event/fosdem-2025-5654-go-in-the-nix-ecosystem-vulnerability-scanning-and-experiments-towards-a-next-gen-builder/

#Nix #nixpkgs #golang #vendoring

Paul Meyer

@[email protected]

#OceanSprint 2025 is over, it was an great experience!

I mostly worked on gobuild.nix, a next-generation builder for Go in nixpkgs. gobuild.nix removes vendoring for Go packages in nixpkgs, modeling the full dependency graph in Nix. Each module dependency will be its own derivation, including build cache on a module level.

During the sprint, I moved gobuild.nix from linking dependency source into a vendor directory to providing a local directory that can be used as GOPROXY. This is both more versatile and simple.

Together with @britter I started implementing a code generation tool that will help to package the large number of packages that will be part of the Go dependencies package set. The tool generates the Nix code for these packages, including the FOD hashes.

#Nix #nixpkgs #golang #vendoring

NixOS

@[email protected]

Good news for all #Nix fans—Nix 2.27.0 has landed, and it’s bringing some great quality-of-life improvements!
A huge shoutout to the 21 contributors who made this release happen!
Want to upgrade? Get it here: https://releases.nixos.org/?prefix=nix/nix-2.27.0/

Read the announcement https://discourse.nixos.org/t/nix-2-27-0-released/62003

Nick Bathum

@[email protected]

Who’s keeping track of all the nix implementations?

I'm finally exploring lix (loving it!) and just saw snix announced. Are there any systematic comparisons out there? I'd appreciate links or resources!

#lix #nix #nixos

Home Manager News

@[email protected]

A new module is available: 'programs.tex-fmt'. tex-fmt is a LaTeX formatter written in Rust. See https://github.com/WGUNDERWOOD/tex-fmt for more information.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

The Easyeffects module now supports adding json formatted presets under '$XDG_CONFIG_HOME/easyeffects/{input,output}/'.
#NixOS #Nix #HomeManager

Vadim Rutkovsky

@[email protected]

Wait, with https://fedoraproject.org/wiki/Changes/ComposefsAtomicDesktops we can no longer use #Nix on #Fedora #Silverblue? https://github.com/DeterminateSystems/nix-installer/issues/1445 says transient root needs to be enabled, but I can't figure out how to do that on a live system

Benedikt Ritter (he/him)

@[email protected]

🌊💻 Greetings from #OceanSprint 2025 in Lanzarote! 🚀

Surrounded by brilliant minds, we're hacking on #NixOS, improving the ecosystem, and sharing knowledge—all with an ocean view. 🌊🏝️

Open-source is about community, innovation, and impact, and this sprint embodies it perfectly. Stay tuned for exciting updates!

#Nix #OpenSource #Hackathon #TechCommunity #Linux #NixOS

ALT text details

People hacking on their laptops inside the living room of a villa

Lobsters

@[email protected]

Announcing Snix https://lobste.rs/s/s5p1ng #nix
https://snix.dev/blog/announcing-snix/

Lobsters

I have a concrete idea for what to do about this, I call it a "drone" deployment of a declaratively configured OS. In Guix terms, this would be a type of system image, in which the guix-daemon and the `guix` command are *not* included. The store would include only the packages required at runtime by the operating-system spec, not any of the packages required to rebuild them.

The idea is that you have a separate beefier machine that rebuilds the image periodically, and then you push that image to the drone somehow, ideally in a way that mimics `nixos-rebuild --boot` (i.e. the running system is not affected until you reboot it).

In addition to making it possible to use a smaller machine or VM instance with this kind of OS, this should also be good for server hardening. The store could be kept read-only, you wouldn't have to consider the package manager as part of the attack surface, etc.

Has anyone done anything even vaguely like this already? For any base OS, not just declarative distributions of Linux?

* the part of me that grew up in the days of 1.44MB floppy disks is horrified that this is a *small* amount of disk space, but that's a me issue

#guix #nix #sysadmin

HoldMyType

@[email protected]

Features like IFD are useful in build systems because they allow build systems to be Monadic, in the words of the Hadrian paper: build things to decide what to build. By comparison, an Applicative build system such as Bazel can only take in things that are known statically; in Bazel it is thus common to check in generated build instructions. This property in category theory is illustrated in the type signatures of the operations of Monad and Applicative:
#nix
https://dl.acm.org/doi/10.1145/3241625.2976011
https://jade.fyi/blog/nix-evaluation-blocking/

Home Manager News

@[email protected]

A new module is available: 'programs.zsh.initContent'. initContent option allows you to set the content of the zshrc file, you can use `lib.mkOrder` to specify the order of the content you want to insert.
#NixOS #Nix #HomeManager

Jake Hamilton

@[email protected]

Alright, there we go, it is the end of an era!

https://github.com/jakehamilton/config

Flakes are officially out!

#Nix

tdback

@[email protected]

Something useful I learned today I thought I would share with any fellow nix users hosting repositories on @Codeberg

You can specify a repository URL prepended with "git+" to run an application with the apps or packages flake output attributes:

```
nix run git+https://codeberg.org/tdback/apod
```

This should also work for any git repo available over http (although I haven't tested it yet with my cgit instance).

As a side note, it looks like some work has been done to add official Gitea/Forgejo flake inputs to nix, but the issue has been inactive for some time: https://github.com/NixOS/nix/issues/11135

#nix #nixos #forgejo

LavX News

@[email protected]

Unlocking NixOS: The Power of Dynamic Derivations

Dynamic derivations are set to revolutionize the NixOS ecosystem, enabling developers to create additional derivations at build time and streamline their workflows. This innovative feature promises to...

https://news.lavx.hu/article/unlocking-nixos-the-power-of-dynamic-derivations

#news #tech #NixOS #DynamicDerivations #Nix

ALT text details

Unlocking NixOS: The Power of Dynamic Derivations

tdback

@[email protected]

samueldr

@[email protected]

Nix 🤡 fork

The “not-a-fork”[sic] fork of Nix has decided to go ahead and take over the next major version number out of the hands from the official Nix package, and from there, take over the mindshare of the version 3.0.

What the actual fuck?

This is effectively a hostile takeover of the Nix name. Nix 3.0 will surface the “not-a-fork”[sic] fork.

They will surely be using the excuse that it's “Determinate Nix”, which is a different name. But in practice, you know how it is. They are polluting the mindshare with their “not-a-fork”[sic] fork.

Also, this is absolutely 100% a fork, even though they say it's not.

This is a fork that has made the current state of Flakes stable. A major fork in the road. Either Nix will have to become "incompatible" with the stability “promises” from the “not-a-fork”[fork], or bow down to what Determinate Systems decides for compatibility, for their future.

I guess it's a good time to jump over to Lix, for anyone who hasn't done so. It work just fine with NixOS.

Hopefully we'll have a statement from the Nix project regarding this.

#NixOS #Nixpkgs #Nix

Home Manager News

@[email protected]

A new module is available: 'programs.mods' mods is a command line AI tool that is highly configurable and allows querying AI models hosted locally or by other services (OpenAI, Cohere, Groq).
#NixOS #Nix #HomeManager

Jake Hamilton

@[email protected]

Throwing this out there, I am still available for work! If you have something #Web related, #Nix / #NixOS related, or #Kubernetes / #Containers related then I would love to chat!

You can find more about my background and projects on my website (which also includes contact information): https://jakehamilton.dev

decafkafk

@[email protected]

This is a serious proposal, we should actually ban and denounce determinate systems now.

https://discourse.nixos.org/t/we-should-urgently-ban-and-denounce-determinate-systems/61356

Please.

#nix #nixos #nixpkgs

@[email protected]

Okay, what do I need to do to get a Nixpkgs package set that successfully evaluates and doesn't take forever? If the answer is "you don't" then I am just going to load the flake instead because that is ridiculous.

#Nix

Jake Hamilton

@[email protected] · Reply to Jake Hamilton's post

Do you use #Nix Flakes directly or do you use something like Flake Parts, Snowfall Lib, etc?

Option	Voters
Flakes directly	87 (76%)
Via a library	27 (24%)

Jake Hamilton

@[email protected] · Reply to Jake Hamilton's post

Do you use #Nix Flakes directly or do you use something like Flake Parts, Snowfall Lib, etc?

Option	Voters
Flakes directly	87 (76%)
Via a library	27 (24%)

800 lines of :nixos: #nix later and I have successfully beefed up our #3dPrinting infrastructure at work @umphy with one #RaspberryPi 4:

· a https://gethomepage.dev landing page
· three fullHD webcams, one for each printer, with current filament visible
· a smart #Tasmota multiplug to remotely power off a printer in case of a problem/hangup
· 🐙 #OctoPrint for the Prusa MK3S, #PrusaLink by the #PrusaMINIs
· 🔐 all password-protected and certs from #LetsEncrypt

#Prusa #NixOS

ALT text details

homepage-dashboard (https://gethomepage.dev) showing links to Prusa printer webinterfaces and a Tasmota smart multiplug webinterface and three webcams, showing the idle printers

ALT text details

Tasmota webinterface of a NOUS A5T multisocket, showing buttons to switch off the three printers individually

ALT text details

PrusaLink webinterface, showing cold (20°C) nozzle and bed temperatures and a prompt to upload a gcode file

drmorr

@[email protected] · Reply to drmorr's post

Dockerfiles don’t scale — no abstractions, copy-paste between files; limited parallelism, multi-stage kinda sucks; non-reproducibility; bloated images; linear caching.

Also this talk is going fast, gonna be fun to livestream 😅

#planetnix #scale22x #nix #kubernetes

drmorr

@[email protected]

Next talk: "Docker was too slow, so we replaced it: Nix in Production" by Aneesh Agrawal. Talking about how to use Nix to build container images for use with Kubernetes.

This is "probably" how I would start using Nix if I ever started using Nix, so I'm excited to learn more.

#planetnix #scale22x #nix

Yann Büchau

@[email protected]

800 lines of :nixos: #nix later and I have successfully beefed up our #3dPrinting infrastructure at work @umphy with one #RaspberryPi 4:

#Prusa #NixOS

ALT text details

homepage-dashboard (https://gethomepage.dev) showing links to Prusa printer webinterfaces and a Tasmota smart multiplug webinterface and three webcams, showing the idle printers

ALT text details

Tasmota webinterface of a NOUS A5T multisocket, showing buttons to switch off the three printers individually

ALT text details

PrusaLink webinterface, showing cold (20°C) nozzle and bed temperatures and a prompt to upload a gcode file

Chris Wolff

@[email protected]

Can someone please explain to me why my math is wrong here? I have a very hard time believing that the entire nixpkgs repo is only ~4.7 GB.

#Nix #NixOS #GitHub #FOSS #Math

ALT text details

Curling the GitHub API for the size of NixOS' nixpkgs repo, which is returned in kilobytes; I then divide that number by 1,048,576 which, at least theoretically, should convert the original number into gigabytes. I'm sure my math has to off, though, somehow; the end result says that the entire repo is only ~4.7 GB, and I'm sure it has to actually be way bigger than that.

samueldr

@[email protected]

Nix 🤡 fork

What the actual fuck?

This is effectively a hostile takeover of the Nix name. Nix 3.0 will surface the “not-a-fork”[sic] fork.

Also, this is absolutely 100% a fork, even though they say it's not.

I guess it's a good time to jump over to Lix, for anyone who hasn't done so. It work just fine with NixOS.

Hopefully we'll have a statement from the Nix project regarding this.

#NixOS #Nixpkgs #Nix

samueldr

@[email protected]

Nix 🤡 fork

What the actual fuck?

This is effectively a hostile takeover of the Nix name. Nix 3.0 will surface the “not-a-fork”[sic] fork.

Also, this is absolutely 100% a fork, even though they say it's not.

I guess it's a good time to jump over to Lix, for anyone who hasn't done so. It work just fine with NixOS.

Hopefully we'll have a statement from the Nix project regarding this.

#NixOS #Nixpkgs #Nix

NixOS

@[email protected]

🌍 Planet Nix is coming to SCALE 20X!

Join us March 6-7, 2025 for two days of #Nix talks, hands-on workshops, and community connections. Whether you're new to Nix or a longtime user, there's a place for you here.

Don’t miss out—let’s build the future of Nix together!
https://planetnix.com

#NixOS #PlanetNix #SCALE20X

Yann Büchau

@[email protected]

Ich bin immer noch sehr zufrieden mit meinem Vortrag letztes Jahr auf dem @tuebix zum Thema "Dateien zeitstempeln, um damalige Existenz zu beweisen".

Wenn Du etwas über ein Problem wissen möchtest, bei dem Du gar nicht wusstest, dass Du es hast 😉, hier ist die Aufzeichnung:

https://tube.tchncs.de/w/jcJWeiQFPxgvi5jJZyrPmC

Dieses Jahr auf dem #Tübix2025 werde ich wohl einen :nixos: #nix / #NixOS workshop geben.

#Tübix #Tübix2024

Joshua Wood

@[email protected]

Got my first development environment (Jekyll website) running in NixOS on my Framework laptop using devenv. That makes this my first successful dev environment in nix. :) Nice work @domenkozar!

https://devenv.sh

#Linux #Nix #NixOS #devenv #FrameworkLaptop #Ruby

Charles Fulton

@[email protected]

Switched my local development for Hexo from #nix flakes to #devenv (still nix under the hood) and I'm happy with the result: https://blog.goodbyeplease.com/2024/08/21/Moving-from-nix-flakes-to-devenv/

Johnny

@[email protected]

Explaining the #Nix store to people

ALT text details

Picture of a children's toy bucket with multiple different shaped holes cut in the top (square, circle, triangle, rectangle, arch). They are labelled /etc, /opt, /usr/lib, /usr/bin. The square is labelled /nix/store. A hand can be seen putting a cylinder labelled "literally anything" in the square hole

💩

@[email protected]

Gave a new update and architectural overview on #tvix during #nixcon24: https://youtu.be/bm1jcTo8uYw #nixcon #nix

Determinate Systems, Inc.

@[email protected]

🎉 It’s almost time! Planet Nix is just a few days away. If you're attending, let’s connect!

Whether you want to discuss enterprise Nix, DevOps workflows, or just grab a coffee, we’d love to chat. Send us a DM!

#PlanetNix #NixOS #Reproducibility #Nix #SCaLE #NixAtWork

Determinate Systems, Inc.

@[email protected]

🎉 It’s almost time! Planet Nix is just a few days away. If you're attending, let’s connect!

Whether you want to discuss enterprise Nix, DevOps workflows, or just grab a coffee, we’d love to chat. Send us a DM!

#PlanetNix #NixOS #Reproducibility #Nix #SCaLE #NixAtWork

Erethon

@[email protected]

A friend asked me some questions about #nix and #nixos. So, naturally, I wrote a blog post with notes I wished I had access to when I first started using NixOS.

https://blog.erethon.com/blog/2025/02/21/my-nixos-notes/

Beady Belle Fanchannel

@[email protected]

> strace nix-build --verbose ~/nixpkgs -A hello 2>&1 | wc -l
27769

> strace nix build --verbose ~/nixpkgs#hello 2>&1 | wc -l
1320849

🤡

#nixos #nix #clownface

nialov

@[email protected]

Made module to define GitHub/Gitea actions in #nix instead of `yaml` by rendering `nix` code to `yaml` using a defined package and/or pre-commit hook. This allows reuse of `nix` configured workflows across repositories 🚀 . Currently very much so a work-in-progress but issue reports and feature requests are very welcome so that it can be refined: https://github.com/nialov/actions.nix

Currently https://github.com/hercules-ci/flake-parts is "required" but supporting more vanilla flakes is easily done, if needed.

#NixOS

Mike

@[email protected]

Anyone going to #SCALE22x / planet #Nix #NixOS ?

It's next week!! I'll be speaking Friday morning all about building Nixbook!

ALT text details

Building a chromebook replacement with NixOS. Friday, 3/7/2025 10:30am

Ethan Carter Edwards

@[email protected]

Check out my recent post on building Nix systems with GitHub Actions and Cachix! https://ethancedwards.com/blog/building-nix-with-gha .

#nixos #nix #github #gha #githubactions #blog #foss #opensource

Mike

@[email protected]

Anyone going to #SCALE22x / planet #Nix #NixOS ?

It's next week!! I'll be speaking Friday morning all about building Nixbook!

ALT text details

Building a chromebook replacement with NixOS. Friday, 3/7/2025 10:30am

Ethan Carter Edwards

@[email protected]

Check out my recent post on building Nix systems with GitHub Actions and Cachix! https://ethancedwards.com/blog/building-nix-with-gha .

#nixos #nix #github #gha #githubactions #blog #foss #opensource

Beady Belle Fanchannel

@[email protected]

> strace nix-build --verbose ~/nixpkgs -A hello 2>&1 | wc -l
27769

> strace nix build --verbose ~/nixpkgs#hello 2>&1 | wc -l
1320849

🤡

#nixos #nix #clownface

secana 🦀

@[email protected]

How long does it usually take for a new #rustlang version to be available on #nix #nixos? It's currently on 1.84.1 but the latest Rust version is 1.85.

Klaus Frank

@[email protected] · Reply to Jake Hamilton's post

@jakehamilton Oh, looks like I managed to push back getting into #Nix long enough for it to have become irrelevant again.

Jake Hamilton

@[email protected]

One year after the #Nix community started falling apart, what has the new steering committee done?

(This is not a dig, I am actually asking for people to link accomplishments by the steering committee)

Erethon

@[email protected]

A friend asked me some questions about #nix and #nixos. So, naturally, I wrote a blog post with notes I wished I had access to when I first started using NixOS.

https://blog.erethon.com/blog/2025/02/21/my-nixos-notes/

Home Manager News

NixOS: the power of VM tests https://lobste.rs/s/9a3noh #linux #nix
https://bmcgee.ie/posts/2025/02/nixos-the-power-of-vm-tests/

Home Manager News

@[email protected]

A new module is available: 'programs.swayimg'. swayimg is a fully customizable and lightweight image viewer for Wayland based display servers. See https://github.com/artemsen/swayimg for more.
#NixOS #Nix #HomeManager

Robert Hensing

@[email protected] · Reply to Jake Hamilton's post

@jakehamilton This is part of why it's still experimental. Some of the bad decisions are not feasible to support indefinitely.

A clear benefit of doing more in "user space" is that you get to change your mind about how composition and extension work, without a backcompat nightmare or losing compatibility (and making reproducibility moot).

We're making good progress on fetching, although we did underestimate it at first.
2.27 will have Git LFS and proper submodules support.
Also a bit of locking: 2.26 had a significant fix for relative path flakes (in-repo flake inputs).
More locking, as well as composability and extension/configurability will come.

#Nix #Flakes

Aada is kitty

@[email protected]

If I have a nix devShell defined in a nix flake with a bunch of stuff that I use locally do something, is there a way for me to take this devShell and somehow yeet it into an OCI container so I can have this environment in our CI things as well?

#NixOS #Nix #Docker

raphiz

@[email protected]

Been playing around with numtide's blueprint and devshell to set up a dev environment for a #Gradle application - turns out, it's pretty fun! 🎉

What started as just a simple #DevShell ended up with pre-commit hooks, a basic gradle derivation and a #NixOS module with tests.
This should be a good starting point for my next projects.

#Nix continues to be a rabbit hole I love falling into 🌀

https://github.com/raphiz/gradle-nix-example

raphiz

@[email protected]

Been playing around with numtide's blueprint and devshell to set up a dev environment for a #Gradle application - turns out, it's pretty fun! 🎉

What started as just a simple #DevShell ended up with pre-commit hooks, a basic gradle derivation and a #NixOS module with tests.
This should be a good starting point for my next projects.

#Nix continues to be a rabbit hole I love falling into 🌀

https://github.com/raphiz/gradle-nix-example

Beady Belle Fanchannel

@[email protected]

I just added a Roadmap to the #lorri repository. Have a look!

https://github.com/nix-community/lorri/blob/canon/ROADMAP.md

I also added a BUSINESS_SUPPORT.md, since I do not have the free time to create all of these features and would like businesses to pay for them!

If your dev team uses lorri at work, please take a look!

#nixos #lorri #nix

Aada is kitty

@[email protected]

#NixOS #Nix #Docker

Lobsters

@[email protected]

Being a happy Nixer on a Mac https://lobste.rs/s/utonjg #mac #nix
https://paretosecurity.com/blog/being-a-happy-nixer-on-a-mac

Sandro

@[email protected]

You already know https://github.com/linyinfeng/angrr ? Gone are the stale result links and garbage collection roots.

#nixos #flakes #nix

flashfox

@[email protected] · Reply to domenkozar's post

@domenkozar
Tell you what: you publish a blog post on devenv.sh owning up to what happened, and I'll apologize for assuming malicious intent.

@Pol @neo @cafkafk @roberth @jfredett @oliverwiegers

#nix #nixos #devenv

ck

@[email protected] · Reply to hexa-'s post

@hexa @soupglasses There is a discussion around that on discourse if you're interested

https://discourse.nixos.org/t/should-commercial-actors-ship-telemetry-in-nixpkgs/60279

Personally, I find the situation quite bizarre, it kind of completely conflicts with my believe on how a FOSS space should function.

#nix #nixos

Lobsters

@[email protected]

Devenv telemetry warning via @crmsnbleyd https://lobste.rs/s/cvxhqu #nix
https://chaos.social/@hexa/114009069746212598

flashfox

@[email protected] · Reply to Robert Hensing's post

@roberth @oliverwiegers @jfredett @cafkafk So looks like the #devenv opt-out is not as out as you might have though...

https://discourse.nixos.org/t/should-commercial-actors-ship-telemetry-in-nixpkgs/60279/42

Is it to early to call #devenv #malware ?

#nix #nixos

flashfox

@[email protected] · Reply to Robert Hensing's post

@roberth @oliverwiegers @jfredett @cafkafk So looks like the #devenv opt-out is not as out as you might have though...

https://discourse.nixos.org/t/should-commercial-actors-ship-telemetry-in-nixpkgs/60279/42

Is it to early to call #devenv #malware ?

#nix #nixos

Nyx Phoenix (new)

@[email protected]

#Lix is clearly the superior #Nix implementation because it has infinity more meows than #CppNix: https://sourcegraph.com/search?q=context:global+meow+repo:%5Egithub%5C.com/(NixOS/nix%7Clix-project/lix)$&patternType=keyword&sm=0

ALT text details

sourcegraph query, sidebar, by repository: lix-project/lix: 172 meows CPP Nix is not here despite being in the query

decafkafk

@[email protected]

Domen, creator of devenv, recently added telemetry to his devenv thing, as part of adding AI to the product, and when nixpkgs contributors removed the telemetry, he reverted the change, with a self merge, without a fucking review even.

https://github.com/NixOS/nixpkgs/pull/381981

This is a clear conflict of interest. We need to stop this from happening in the NixOS organization, corpos need to have some respect for users.

Discussion thread: https://discourse.nixos.org/t/should-commercial-actors-ship-telemetry-in-nixpkgs/60279/8

#nix #nixos #nixpkgs

decafkafk

@[email protected]

https://github.com/NixOS/nixpkgs/pull/381981

This is a clear conflict of interest. We need to stop this from happening in the NixOS organization, corpos need to have some respect for users.

Discussion thread: https://discourse.nixos.org/t/should-commercial-actors-ship-telemetry-in-nixpkgs/60279/8

#nix #nixos #nixpkgs

flashfox

@[email protected] · Reply to flashfox's post

@jfredett @oliverwiegers .... and reverted by the author, who apparently has commit rights and does not seem to agree with community PR workflow.

So we now have commercial actors in #nixpkgs who can just push their own commercial agenda be decree.

#nix #nixos #devenv

isabel

@[email protected]

I wrote a longer blog then my usual about replacing `lib.nixosSystem` with my own builder.

https://isabelroses.com/blog/custom-lib-nixossystem-11

#nix #nixos

Solinvictus

@[email protected]

ffs, here we go again ... goddamn it @nixos_org why can't we just have a smooth transition :blobcatfacepalm:

#nix #nixos #nixDarwin

flashfox

@[email protected] · Reply to Joe 'Oz' Fredette's post

@jfredett @oliverwiegers

At least in #nixpkgs the telemetry seems to be of by default now

https://github.com/NixOS/nixpkgs/pull/381817

#nix #nixos #devenv

flashfox

@[email protected]

#devenv now collects "anonymous" data to train their "AI"

https://devenv.sh/blog/2025/02/13/devenv-14-generating-nix-developer-environments-using-ai/

#nix #nixos

Lobsters

@[email protected]

devenv 1.4: Generating Nix Developer Environments Using AI https://lobste.rs/s/bfvovo #nix
https://devenv.sh/blog/2025/02/13/devenv-14-generating-nix-developer-environments-using-ai/

Nyx Phoenix (new)

@[email protected]

ALT text details

sourcegraph query, sidebar, by repository: lix-project/lix: 172 meows CPP Nix is not here despite being in the query

Home Manager News

@[email protected]

A new module is available: 'programs.git-worktree-switcher'. git-worktree-switcher allows you to quickly switch git worktrees. It includes shell completions for Bash, Fish and Zsh. See https://github.com/mateusauler/git-worktree-switcher for more.
#NixOS #Nix #HomeManager

Lobsters

@[email protected]

Persistent packages on Steam Deck using Nix https://lobste.rs/s/vqprux #nix
https://chrastecky.dev/gaming/persistent-packages-on-steam-deck-using-nix

Lobsters

@[email protected]

NixOS and Actually Portable Executables https://lobste.rs/s/oitgiq #linux #nix
http://jackkelly.name/blog/archives/2025/01/15/nixos_and_actually_portable_executables/index.html

Lobsters

@[email protected]

NixOS and Actually Portable Executables https://lobste.rs/s/oitgiq #linux #nix
http://jackkelly.name/blog/archives/2025/01/15/nixos_and_actually_portable_executables/index.html

Crystal

@[email protected]

Another NixOS blogpost! This one about deploy-rs and deploying remotely!

after this one, I'm taking a brief break on this series while I figure out what to do with my machines. gonna focus on art n "cool stuff"

https://crystalwobsite.gay/posts/2025-02-09-deploying_nixos

#Nix #NixOS

Crystal

@[email protected]

Another NixOS blogpost! This one about deploy-rs and deploying remotely!

after this one, I'm taking a brief break on this series while I figure out what to do with my machines. gonna focus on art n "cool stuff"

https://crystalwobsite.gay/posts/2025-02-09-deploying_nixos

#Nix #NixOS

isabel

@[email protected]

I wrote a longer blog then my usual about replacing `lib.nixosSystem` with my own builder.

https://isabelroses.com/blog/custom-lib-nixossystem-11

#nix #nixos

Zack Weinberg

@[email protected]

I have two fairly basic questions about #nix and #nixos that I have been unable to find any answer for that makes any sense to me. Anyone who can offer an explanation, I'd appreciate it.

My background is that I understand the basic structure of store-based Unixes, but I don't have a lot of experience with them, and I understand the Nix language only just well enough to get myself in trouble.

(questions in follow-ups, please reply directly to the question you're answering.)

isabel

@[email protected]

I wrote a longer blog then my usual about replacing `lib.nixosSystem` with my own builder.

https://isabelroses.com/blog/custom-lib-nixossystem-11

#nix #nixos

Home Manager News

@[email protected]

All 'programs.<PROGRAM>.enable<SHELL>Integration' values now default to the new 'home.shell.enable<SHELL>Integration' options, which inherit from the new the 'home.shell.enableShellIntegration' option. The following inconsistent default values change from 'false' to 'true': - programs.zellij.enableBashIntegration - programs.zellij.enableFishIntegration - programs.zellij.enableZshIntegration
#NixOS #Nix #HomeManager

Lobsters

@[email protected]

Three Years of Ephemeral NixOS: My Experience Resetting Root on Every Boot https://lobste.rs/s/ejwdhq #nix
https://b.tuxes.uk/three-years-of-ephemeral-nixos.html

Determinate Systems, Inc.

@[email protected]

🌍🚀 Planet Nix 2025 is happening March 6-7 in Pasadena! It's the biggest Nix-focused conference in North America and co-located with SCaLE. Tickets are only $85 for both events! 🎟️

If you care about Nix, this is the place to be. Register now and meet us there: 🔗 https://www.socallinuxexpo.org/scale/22x

#PlanetNix #NixOS #Linux #SCaLE #Nix #NixAtWork #CICD

qeef

@[email protected]

Warning! Nix language!

https://qeef.srht.site/post/warning-nix-language/

I wrote a piece. But I am too tired to read it after myself. Sorry.

#Nix #NixLang

Determinate Systems, Inc.

@[email protected]

🌍🚀 Planet Nix 2025 is happening March 6-7 in Pasadena! It's the biggest Nix-focused conference in North America and co-located with SCaLE. Tickets are only $85 for both events! 🎟️

If you care about Nix, this is the place to be. Register now and meet us there: 🔗 https://www.socallinuxexpo.org/scale/22x

#PlanetNix #NixOS #Linux #SCaLE #Nix #NixAtWork #CICD

Robert Hensing

@[email protected]

🎙️ Learn about the latest Nix releases up to 2.26 on the Full Time Nix podcast with host mightyiam, edolstra, tomberek and me
https://fulltimenix.com/episodes/nix-2-24-11-2-25-4-2-24-12-2-25-5-2-26-0-2-26-1-with-members-of-the-nix-team
#Nix #NixOS @nixos_org

Yann Büchau

@[email protected]

:nixos: #nix and #NixOS do HaaS: Hard-coding as a Service.

You tell it what you want your system to look like and it hard-codes the sh*t out of it.

This comes with all the benefits of hard-coding: Your environment, your PATH, manually installed software, etc. don't interfere with your base system at all. Every program and service sees exactly the dependencies and configurations they were given. The amount of power this gives for servers/embedded/purpose-built machines cannot be overstated!

secana 🦀

@[email protected]

@[email protected]

Oh boy is working with strings terrible in :nixos: #nix 😩

I need a function that escapes a string for use as a systemd service name. Especially the asterisk * is a problem, which makes building system-units fail. But nix has no regex-replace 😩 And I can't even find how to iterate over the characters in a string to do it semi-manually...

EDIT: Using an increasing number now instead of that problematic field, but still...

seth 🍃

@[email protected]

got to get rid of basically all the inputs in catppuccin/nix's flake today thanks to a new #nix 2.26 feature. can't wait to see it in nixpkgs :)

https://github.com/catppuccin/nix/pull/458

Home Manager News

@[email protected]

Yazi's fish shell integration wrapper now calls the 'yazi' executable directly, ignoring any shell aliases with the same name. Your configuration may break if you rely on the wrapper calling a 'yazi' alias.
#NixOS #Nix #HomeManager

Heals

@[email protected]

Hello @lix_project !

I'm currently running Lix on my mac based on the original determinate systems installer and I was wondering:

Is there a way to switch from Determinate to Lix's own installer?

I'm using a system flake with nix-darwin and home-manager so I don't thinks it's trivial to undo what the determinate installer did (so I could do a clean lix in taller based setup)

#nix #lix #macOS

Lobsters

@[email protected]

Encrypted NixOS home server with passwordless reboot https://lobste.rs/s/hktw8t #linux #nix
https://log.pfad.fr/2025/fde-nixos-colmena-passwordless-reboot/

Krutonium

@[email protected]

I love Nix because replace #!/bin/bash at the start of a shell script with

#!/usr/bin/env nix-shell
#! nix-shell -i bash
#! nix-shell -p bash jdk21

And now that script has guaranteed dependencies met. And you can use any interpreter you want, be it bash, python, or whatever.

#java #minecraft #nix #nixos #bash

Lobsters

@[email protected]

From Nix to Eos https://lobste.rs/s/3f9jfg #nix #practices
https://nrd.sh/blog/nix-to-eos/

Paul Meyer

@[email protected]

I'll be speaking at the Nix and NixOS devroom at @fosdem next year!

Grimmauld

@[email protected]

After yesterday making a list of things that need doing on discourse (https://discourse.nixos.org/t/apparmor-on-nixos-roadmap/57217?u=grimmauld), i started working on #nix tooling for #apparmor

I managed to use the nixpkgs package as a basis and clean up all the cruft apparmor has accumulated in the past 13 years since it was added.
Highlights:
- ALL tests of ALL components pass!
- strictDeps is enabled
- made it all more readable and maintainable

I developed this using flakes in my fork:
https://gitlab.com/Grimmauld/apparmor/-/compare/master...nix.dev?from_project_id=4484878

I call this progress :)

Home Manager News

@[email protected]

The module 'programs.nushell' can now manage the Nushell plugin registry with the option 'programs.nushell.plugins'.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

isync/mbsync 1.5.0 has changed several things. isync gained support for using $XDG_CONFIG_HOME, and now places its config file in '$XDG_CONFIG_HOME/isyncrc'. isync changed the configuration options SSLType and SSLVersion to TLSType and TLSVersion respectively. All instances of 'accounts.email.accounts.<account-name>.mbsync.extraConfig.account' that use 'SSLType' or 'SSLVersion' should be replaced with 'TLSType' or 'TLSVersion', respectively. TLSType options are unchanged. TLSVersions has a new syntax, requiring a change to the Nix syntax. Old Syntax: SSLVersions = [ "TLSv1.3" "TLSv1.2" ]; New Syntax: TLSVersions = [ "+1.3" "+1.2" "-1.1" ]; NOTE: The minus symbol means to NOT use that particular TLS version.
#NixOS #Nix #HomeManager

Yvan Sraka

@[email protected] · Reply to Yvan Sraka's post

We are hosting the 8th iteration of our Brussels #Nix / #NixOS / #Guix User Group Meetup next Monday, December 9th, at @HSBXL! https://brunix.glitch.me

Aires

@[email protected]

So I just finished converting my #Nix config to Snowfall, and nothing about my system changed, which is as good of a review as I can give for a Nix framework. Shoutout to @jakehamilton for keeping it going (and for hosting your config online so I can ~~steal from~~ reference it 😛)

https://snowfall.org/guides/lib/quickstart/

Lix Project

@[email protected]

did you know: you can use the experimental `nix` CLI of CppNix/Lix on non-flakes projects?

nix-build -A myAttr.foo => nix build -f . myAttr.foo
nix-shell -A myAttr.foo => nix develop -f shell.nix myAttr.foo
nix-instantiate --eval foo.nix -A myAttr.foo => nix eval -f foo.nix myAttr.foo

#nix

Dominik

@[email protected]

This is one of the most useful tools I have built:

https://history.nix-packages.com

Working with multiple versions of whatever software you need for your legacy app is a breeze.

You want some specific version of #php #nodejs #golang or whatever else without it polluting your system? You're just one `nix-shell` command away!

#nix #nixos

Home Manager News

@[email protected]

A new option 'programs.starship.enableInteractive' is available for the Fish shell that only enables starship if the shell is interactive. Some plugins require this to be set to 'false' to function correctly.
#NixOS #Nix #HomeManager

opdavies

@[email protected]

I use Nix for all my application development projects.

https://www.oliverdavies.uk/daily/2024/11/30/using-nix-for-local-application-development

#dev #SoftwareDevelopment #nix #NixOS #linux

piegames

@[email protected] · Reply to Zufallsshirt's post

@zufallsshirt … by the #Nix community

Laauurraaa

@[email protected] · Reply to Laauurraaa's post

Here, a development environment that installs

1. Bun
2. Playwright
3. Chrome, firefox and a generic webkit browser

And sets it up correctly, in an isolated environment? With a nice "hey, this is how you use this development environment" comment as a cherry on top?

The entire Nix file is 46 lines of code. Most of it boilerplate.

#nix #nixos

Laauurraaa

@[email protected]

I love Nix so much, because you can just super easily contain an entire development environment in one file. This stuff is genuinely

- More flexible than docker
- Easier than docker
- More reliable than docker
- Faster than docker
- More powerful than docker

Why isn't literally everyone using Nix?

#nix #nixos

Home Manager News

@[email protected]

A new module is available: 'programs.kubecolor'. Kubecolor is a kubectl wrapper used to add colors to your kubectl output.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'programs.nix-your-shell'. nix-your-shell is a wrapper for `nix develop` or `nix-shell` to retain the same shell inside the new environment.
#NixOS #Nix #HomeManager

kalipso

@[email protected] · Reply to NixOS's post

@nixos_org Hail #Nix, all hail #NixOS

0x17

@[email protected]

TIL: There is a #Nix based static site generator and I'm may be hooked :cyberheart_pink:

#NixOS

https://github.com/static-nix/styx

Paul Meyer

@[email protected]

#FOSDEM call for participation ends in 3 days, 15 hours! Still plenty of time to hand in a proposal for the #Nix and #NixOS devroom!

Paul Meyer

@[email protected]

After some months of work, I got the legacy `buildGoPackage` builder removed from #nixpkgs. Most packages using the legacy builder were migrated to `buildGoModule`. Now we have less maintenance burden and thus the chance to work on something new!
https://github.com/NixOS/nixpkgs/issues/318069

Check out the updated Go section in the nixpkgs manual: https://nixos.org/manual/nixpkgs/unstable/#sec-language-go

#Nix #nixpkgs #NixOS #golang

C.B.Leslie

@[email protected]

Nix Gang,

https://github.com/Ookiiboy/ignoreBoy

I’ve had a really good time with managing development environments using devShells, so I created a nix shell library for generating .gitignore files from github's own templates. It comes with sane defaults as well.

Please take a peek. Maybe you'll love this tool as much as I love'd makin' it!

#nix #nixos #gitignore

benwebb

@[email protected]

Keep being surprised that I can't `coerce an integer to a string` in nix. I wonder if there's a good reason.

#nix

Nix & Rust Rhein-Neckar

@[email protected]

All talks of our last #NixOS and #RustLang meetup in #Mannheim are finally public. As always, you get to pick where you watch them.

PeerTube: https://tube.tchncs.de/w/p/akbB31cfbmVpsqtwxzEVsX

YouTube: https://www.youtube.com/watch?v=97dzS-lUCi4&list=PLEEtsDSdB56DeC1WFIcQQS0JHW4nrmYM6

alugha: https://alugha.com/videos/05bb8fb0-aa6d-11ef-a117-f9fb0ec8fdf4?watchlist=e2e1c8e0-aa78-11ef-b69c-7b2529c70d57

#Rust #Nix

Arik Grahl

@[email protected]

I have just submitted my #CfPs for #KubeCon + #CloudNativeCon Europe 2025 🎉

The first submission deals about defining #Kubernetes manifests with Kubenix by leveraging #Nix modules.
The second submission discusses #NixOS as a declarative and reproducible basis for #Kubernetes.

I am curious how the cloud native ecosystem will receive #Nix as a complementing technology.
I would love to see more synergy effects here.

Wish me luck 🤞

#KubeConEU #KubeConEU25

Nix & Rust Rhein-Neckar

@[email protected]

Celebrating our first anniversary, our next #NixOS meetup is scheduled for Wednesday, December 18 at the Mathematikon in #Heidelberg. For the first time, we are separating our Nix and Rust meetup, so be prepared for another announcement of our Rust anniversary meetup.

No matter if you use #Nix or #Lix on #Linux or #macOS, everyone is welcome to join us.

Pizza and drinks will be provided. If you plan to join us, please register for the event here:

https://rheinneckar.events/events/2f369d80-8940-40e2-b0cc-264e78093da0

C.B.Leslie

@[email protected]

Nix Gang,

I have released an opinionated Nix Flake template for Deno.

https://github.com/Ookiiboy/templates

Features include:
- direnv file - for you cool kids
- Pretty good .gitignore
- Built-in git hooks; no setup required, runs deno tooling on commit.
- Linked `.editorconfig`
- Nix formatter already setup

Should be fairly turnkey.

P.S.:
@deno_land team, if you're reading this, I have room for Dinosaur stickers on my laptop.

#nix #nixos #deno #deno2

Zach Mitchell

@[email protected]

Just a reminder that Planet #Nix is taking place on March 6-7th in Pasadena. The CFP is open and we'd love for you to submit a talk or workshop!

https://planetnix.com/

#NixOS

Robert Hensing

@[email protected]

On our way to #ZurichZHF #Nix meetup with @koen and @wheeze_NL. #Roadtrip #FlightShame #scenic

ALT text details

A wintery highway, slightly snow covered trees on either side, autumn leaves still showing through, a beautiful sight

Ellyse

@[email protected]

Advent of Code with Nix (2019 day 2 part 2) - didn’t realise there was a part 2, so did it today!
This time we get to brute force a solution and shove it into the elf computer!
Click here for video: https://youtu.be/TBLH9i8qZj8
#nixos #nix #adventofcode

Nix & Rust Rhein-Neckar

@[email protected]

We're finally planning our next #Nix meetup in #Heidelberg, which will be set between the 12th and 19th December, celebrating our meetup's anniversay! 🎂 To make the schedule suitable for as many former participants as possible, we've set up a poll. We'll open the doors at 18:00 and start talks at 19:00. There will be Pizza for celebration. 🍕

https://cloud.korz.tech/apps/polls/s/FbisU3sy

#NixOS #lix

Jeezy

@[email protected]

A year on, this remains the single most most viewed technical post I've ever written

It provides a detailed overview of the most popular approaches to handling #secrets in #NixOS configurations, complete with examples

It's still as relevant today as it was last year!

https://lgug2z.com/articles/handling-secrets-in-nixos-an-overview/

#nix #secrets #devops #infrastructure #programming

futurile

@[email protected]

What should we call a group of Guix users?

One #Guix person is clearly a, 'Guix user', but what is a group? It's not a flock, and it can't be a Herd obviously! And anyway, #Guix and #Nix users are forging their own own path! In fact any #Linux user is already a pioneer. So what do you call a group of Guix users?

@luis_felipe reminded me there's no currently accepted one!

Option	Voters
Guix denizens	1 (20%)
Guixers	4 (80%)
Guixellators	0 (0%)
Guixelati	0 (0%)

Paul Meyer

@[email protected]

Incremental builds in Nix and garnix

"[Garnix] approach is to make the derivations you want cached to output their cache (for instance in a separate output), and then to import a previous version of that derivation, and use the cached output from that version in the new one."

https://garnix.io/blog/incremental-builds

#Nix #NixOS #BuildSystems #ReproducibleBuilds

Ellyse

@[email protected]

New Let’s Learn Together video on using Nix to package existing software but with dependencies missing. This one was fun! #nix #nixos click link here:
https://youtu.be/4Z78L8igmlk

Paul Meyer

@[email protected]

NixOS Thaiger Sprint 2025 announced! A week of intense hacking on Nix in Thailand.
https://thaigersprint.org/

#Nix #NixOS

Paul Meyer

@[email protected]

TIL: `git archive` is used by GitHub and other forges to create an archive of a repo to download. git can do unexpected thing when creating such archive, like variable substitution using the `export-subst` feature. So even if a commit is immutable, you can still download different content if a ref or tag changed.

https://git-scm.com/docs/git-archive/2.46.0#Documentation/git-archive.txt-export-subst

Example: https://github.com/smallstep/cli/blob/master/.VERSION

That's a real problem in context of reproducible builds (or just source-pinning in general).

#ReproducibleBuilds #nixpkgs #nix #git #github

Determinate Systems, Inc.

@[email protected]

If you're using #Nix directly from the Nix upstream: skip the 2.25.0 release, or adjust your Nix expressions. Users of https://flakehub.com/flake/determinateSystems/nix are unaffected.

See: https://github.com/NixOS/nix/issues/11862

bashfulrobot / Dustin Krysak

@[email protected]

Just sayin. #Nix could take a lesson from #rust on meaningful error messages.

Ellyse

@[email protected]

Hi all! OMG Last section of the Nix language tutorial, finally we finished! I wonder if this means I can put Nix on my LinkedIn profile yet?

Today we cover derivations and review some example Nix code #nixos #nix
https://youtu.be/527eHLyybQE

Neo

@[email protected] · Reply to Neo's post

I made a proof of concept “works out of the box”, “batteries included” Linux based desktop OS, built using #Nix and #NixOS but with flatpak support for easy installation of user applications and no knowledge of underlying Nix base OS required.
It’s simply called “deskOS”, anyone who’s interested can check it out at https://nixup.io/

I even had a EU edition in mind: https://files.nixup.io/desk-os/releases/desk-os-1/eu-edition/

Paco Velobs

@[email protected]

Hey #nix and #JS people 👋

I was wondering if something like mkYarnPackage already exists for #bun 👀

I'm supposed to demonstrate the power of #nix and #flakes on a #NextJS + #bun project at work.

I got something working with #yarn but that's not what they asked for 🤷

Jost 🔥

@[email protected]

If people near #Magdeburg are interested in #Nix or #NixOS, there is Nix Meetup planned for next Monday @netz39

Mon 11.11. - 7pm / 19 Uhr

Sandro

@[email protected]

Our #NüschtOS search deployment at https://search.nüschtos.de got quite a few new #flakes in the last days including nix-darwin, authentik-nix, crowdsec, lanzaboote, microvm.nix, nixos-hardware, nixos-wsl, simple-nixos-mailserver, sops-nix and tsnsrv.

What other popular flakes are we missing?

#nix #nixos

Paul Meyer

@[email protected]

NixOS Steering Committee Election results are out!

Congrats to @winter @roberth @fpletz and the other (fediverse-less) winners.

https://github.com/NixOS/SC-election-2024/pull/85#issuecomment-2456780650

Interesting the turnout is only (?) 56%, even after all the controversy of the last year.

#Nix #NixOS

💩

@[email protected]

Gave a new update and architectural overview on #tvix during #nixcon24: https://youtu.be/bm1jcTo8uYw #nixcon #nix

Home Manager News

@[email protected]

A new module is available: 'services.podman'. Podman is a daemonless container engine that lets you manage containers, pods, and images. This Home Manager module allows you to define containers that will run as systemd services.
#NixOS #Nix #HomeManager

Zach Mitchell

@[email protected]

We're doing another #Nix conference in North America this year called Planet Nix! It's co-located with SCaLE in Pasadena on March 6-7th. Two tracks over two days, chocked full of Nix goodness. Submit your talk today!

https://discourse.nixos.org/t/announcing-planet-nix/55350

dereulenspiegel

@[email protected]

nix, NixOS

Is there currently no official part of the nix lib which allows me to do calculations on IPv6 networks? Stuff like "give me the 8th address in this network". For a system which revolves very much around predictable configuration that looks like an oversight.
Also implementing this in #nix yourself seems to be awful.

Determinate Systems, Inc.

@[email protected]

The future of software is #Nix: the vision of #Determinate, and our effort to unabashedly evolve the Nix ecosystem.

New on the blog: https://buff.ly/3UnKxvO

Determinate Systems, Inc.

@[email protected]

#Nix 2.24.10 is currently phasing in through all Determinate distribution channels. This release improves the security of Nix when using the optional, stricter sandbox on macOS.

An upstream advisory is not yet available.

decafkafk

@[email protected]

Just released nix-weather, a #rust cli-tool to check how many of your NixOS system’s build dependencies are in a binary cache.

$ nix-weather -n myhost -c /etc/config/

Found Nix Requisites in 8 seconds
Checked 2789 packages in 1 seconds
Found 2676/2789 (95.95%) in cache

This is useful to e.g. “check the weather” before going for an update. If the dependencies you want still haven’t been cached, it can be useful to know you can postpone an update to a later day when the weather is better on the cache.

Feel free to try it out from the GitHub mirror (it’s likely faster than my forgejo instance, and I’d appreciate saving the bandwidth).

https://github.com/cafkafk/nix-weather/releases/tag/v0.0.2

#nix #nixos

decafkafk

@[email protected]

babe wake up, I wrote about Helsing’s presence at Eurorust, winning their drone hackathon, and whether or not they’re just an “European Anduril” or a “good” defense company.

I also talk a bit about what this would mean for a Nix sponsorship policy, and what I think the Rust community can do.

And what’s the deal with Jon Gjengset suddenly working there?

https://cafkafk.dev/p/eurorust-2024-helsing/

#eurorust #eurorust2024 #nix #nixos

C.B.Leslie

@[email protected]

` nix-store --gc --print-roots | grep "result"`, I love you.
#nix #nixos

Jake Hamilton

@[email protected]

Hi everyone, I am now looking for full-time work! If you have a remote Software Engineer position available and work with #Frontend web tech (#HTML / #CSS / #JS / #TS / #React, etc), #NodeJS (or #Bun / #Deno ), #Kubernetes, or #Nix / #NixOS then please reach out! I love building tools to solve problems and delight users.

For examples of my previous work, links to my projects, and my resume, please see my website: https://jakehamilton.dev

Boosts very much appreciated!

#FediHire #GetFediHired

Paul Meyer

@[email protected]

The Nix/NixOS devroom at @fosdem was accepted, and the CfP is open! I'm really amazed to be part of the organization team this year.
Talks can be submitted until 2024-11-30.

https://discourse.nixos.org/t/nix-and-nixos-devroom-fosdem-2025/54963

#Nix #NixOS

Aires

@[email protected]

Running into a nixos-rebuild problem. If I run `nixos-rebuild switch --build-host [my server]`, it builds, but I get the error "sudo: a terminal is required to read the password". Running `nixos-rebuild build` on its own does work, and it doesn't ask for a password since my user's trusted. It's just the final step of switching/booting into the build that fails becaus of sudo.

I did a bunch of searching and tried a dozen different fixes, but none of them worked. The only thing that worked was creating a nixos-rebuild wrapper script that basically splits a single remote switch/boot into two separate commands: a remote build, and then a local switch/boot. Basically it looks for a "--build-host" flag, and if it finds one, it runs `nixos-rebuild build --build-host [blah]`, then runs `nixos-rebuild switch`. Here's what it looks like: https://github.com/8bitbuddhist/nix-configuration/blob/89e9f95ba9daae8fe359022d74de1b84c3e312f7/bin/nixos-operations-script.sh#L98

I feel like there has to be a better way though. Anyone else run into this issue and find a less convoluted solution?

#NixOS #Nix

Home Manager News

@[email protected]

A new module is available: 'nixGL'. NixGL solve the "OpenGL" problem with nix. The 'nixGL' module provides integration of NixGL into Home Manager. See the "GPU on non-NixOS systems" section in the Home Manager mantual for more.
#NixOS #Nix #HomeManager

Paul Meyer

@[email protected]

I just voted in the #Nix Steering Committee Election 📥
If you are registered as voter but haven't yet, you can do so until Sun, 2024-11-03.

#NixOS

Niko🏳️‍🌈🏳️‍⚧️

@[email protected]

My plan for America,,,, (Everyone is mandated to use Nix).

#nix #lix #nixos

ALT text details

“IS THIS TOMORROW” Cartoon depicting people fighting and struggling and the United States of America flag burning in the background. “AMERICA UNDER NIX!”

Paul Meyer

@[email protected]

Nice, status update from nixbuild.net! https://blog.nixbuild.net/posts/2024-10-16-a-batch-of-nixbuild-net-updates.html
Always happy to see those smaller Nix companies thrive.

@[email protected]

I've been nominated for the first NixOS Steering Committee!

You can read my candidate form here, where I explain some of my goals, previous work, and motivation in running for this position. I also encourage everyone to check the issues of this repository, which is filled with some great questions from the community and responses by myself and my fellow candidates

I will be continuing this thread by highlighting some of the questions I find most important for this election 🧵

@[email protected]

Yvan Sraka

@[email protected] · Reply to Yvan Sraka's post

We are hosting the 6th iteration (I forgot to toot about the previous one) of our Brussels #Nix / #NixOS / #Guix User Group Meetup next Monday, August 12th, at @HSBXL! (And yes, there will be free pizzas again! 🍕)

Andrew Zah

@[email protected]

Hi #linux and #NixOS folks/consultants, I currently have a problem. I want to use #openssl 3.x with the #fips module in a distroless docker container, built by #nix. I have an example nix repo at https://github.com/andrewzah/nix-openssl-fips-test.

@[email protected]

Got my first development environment (Jekyll website) running in NixOS on my Framework laptop using devenv. That makes this my first successful dev environment in nix. :) Nice work @domenkozar!

https://devenv.sh

#Linux #Nix #NixOS #devenv #FrameworkLaptop #Ruby

Home Manager News

@[email protected]

Home Manager News Bot is now open source!
https://github.com/katexochen/hmnews-bot

#NixOS #Nix #HomeManager

Raito Bezarius

@[email protected] · Reply to Raito Bezarius's post

Finally, once you have all of that, you can enjoy a colmena to deploy an entire fleet of embedded systems with automatic recovery in case of failed deployments!

This idea can generalize to more than just an embedded system or a router.

With my folks at DGNum (a nonprofit doing weird shit), we also are working on managing on-the-shelf switches using... #Nix expressions and colmena... without modifying the operating system! 6/6

Home Manager News

@[email protected]

A new module is available: 'programs.yambar'. Yambar is a lightweight and configurable status panel for X11 and Wayland, that goes to great lengths to be both CPU and battery efficient - polling is only done when absolutely necessary. See https://codeberg.org/dnkl/yambar for more.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'services.hyprpaper'. Hyprpaper is a blazing fast wallpaper utility for Hyprland with the ability to dynamically change wallpapers through sockets. It will work on all wlroots-based compositors, though. See https://github.com/hyprwm/hyprpaper for more.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'programs.hyprlock'. Hyprland's simple, yet multi-threaded and GPU-accelerated screen locking utility. See https://github.com/hyprwm/hyprlock for more.
#NixOS #Nix #HomeManager

Home Manager News

@[email protected]

A new module is available: 'programs.fastfetch'. Fastfetch is a Neofetch-like tool for fetching system information and displaying them in a pretty way. See https://github.com/fastfetch-cli/fastfetch for more.
#NixOS #Nix #HomeManager

NGI Zero open source funding

@[email protected]

@[email protected]

fasterthanlime 🌌

@[email protected] · Reply to fasterthanlime 🌌's post

I quietly dropped a 12-part series about #rust + #nix tonight ✨

One part will unlock each week, $10/mo sponsors get access to the whole thing on day one and can share any article with friends/colleagues, etc.

Enjoy!

https://fasterthanli.me/series/building-a-rust-service-with-nix

Ross A. Baker

@[email protected]

Post-disaster #Introduction:

I am best known for #Scala, #Typelevel, and #http4s. I geek out over #Emacs, #Nix, and the #Indieweb. I'm probably a #Bayesian.

I live in #Indianapolis, #Indiana with a #Dachshund, #Coonhound, #TuxedoCat, and a freshwater #Aquarium or five. I offset my #Jogging with #BBQ. I coach youth #Soccer and attend North United #Methodist Church.

This is a #SelfHosted sequel after a Terraform disaster. Boosts appreciated to relocate my peeps.

#Pronouns are he/him.

Markus Wamser

@[email protected]

Hello World.

#introduction #neuhier

I'm a consultant/developer for Embedded Systems Security.

Every now and then I contribute to #NixOS and #nixpkgs

I tried blogging a few times before, but either the service went out of business after a few posts or I ran out of time for longer posts.

Expect #Security and or #Nix orientended content from me.
Ocassional ramblings on random things, too.

maralorn

@[email protected]

Hey #nix and #nixos people!

I wrote a matrix bot for nixpkgs pull request notifications.

It‘s like the cool https//nixpk.gs/tracker.html by @qyliss, which shows you which release channels a pull request has reached.

With the bot you can subscribe and get notifications, whenever it reaches a channel instead of hammering F5 in your browser tab.

Just open a query to https://matrix.to/#/@nixpkgs-bot:maralorn.de and send "help".

Looking forward to you all stress testing it!

Jake Hamilton

@[email protected]

#introductions

Hello Fediverse! I'm Jake, a Software Engineer that likes building cool, impactful things! I've written mostly JavaScript and TypeScript in my career and love #containers, #kubernetes, and #nix / #nixos.

Lately I've been working on Nix-related things at https://github.com/snowfallorg/

Thank you to the wonderful people at Hachyderm for having me here :)