#Nix

@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 ?

new blogpost: fun with nixos machines in the cloud

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

#blog #nix #nixos #homelab #indieweb

new blogpost: fun with nixos machines in the cloud

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

#blog #nix #nixos #homelab #indieweb

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

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

NixOS 25.05 "Warbler" is now released! 🎉

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

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

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

@Pol

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

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 🫶

#nix noise 😏

https://github.com/NixOS/nix/pull/13220

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

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 🫶

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

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

And finally, buildGoPackage has been removed, it was deprecated since the last release. Details regarding migration can be found in the Go section in the nixpkgs manual.

Let me know if I missed anything important. :)

#NixOS #Nix #nixpkgs #Go

A new builder buildGoLatestModule has been added to provide faster support to packages that require the latest Go version on minor release, such as gopls and co. While the minor bump of buildGoModule needs to go through staging, buildGoLatestModule is updated on master and will therefore reach users faster. The use within nixpkgs is restricted, please read the Go upgrade policy. Notice that this is only for faster minor version bumps at the moment, so direct use of buildGoLatestModule outside of nixpkgs doesn't give much benefit (especially, no faster access to security patches).

#NixOS #Nix #nixpkgs #Go

A policy documenting the details of Go toolchain and builder upgrades in nixpkgs, as well as rules related to using non-default builders like buildGo1xxModule and buildGoLatestModule within nixpkgs has been added in-tree. This is manly to coordinate maintenance and to set expectations for consumers outside of nixpkgs.

#NixOS #Nix #nixpkgs #Go

buildGoModule now passes environment variables via the env attribute. CGO_ENABLED should now be specified with env.CGO_ENABLED when passing to buildGoModule. Direct specification of CGO_ENABLED is now redirected by a compatibility layer with a warning, but will become an error in future releases.
Go-related environment variables previously shadowed by buildGoModule now results in errors when specified directly. Such variables include GOOS and GOARCH.
Third-party projects supporting both stable and unstable channels could detect this change through the absence of the CGO_ENABLED function argument in buildGoModule (!((lib.functionArgs buildGoModule) ? CGO_ENABLED)).

#NixOS #Nix #nixpkgs #Go

Next, buildGoModule now supports a goSum attribute (null by default) to optionally provide a path to go.sum and correctly enabling rebuilds when the file changes. It ensures you aren't using an outdated fixed output derivation (FOD) hash for your Go module dependencies. Previously, on changes to src, updating vendorHash could be forgotten and nix wouldn't notice and continue using outdated module dependencies from the FOD.

#NixOS #Nix #nixpkgs #Go

Overriding of the goModules attribute (the FOD with the Go module dependencies) is unsupported on buildGoModule. To still enable overriding, passthru.overrideModAttrs was added, allowing to pass a function used for overriding the modules derivation internally. It's documented in its own section in the nixpkgs manual.

#NixOS #Nix #nixpkgs #Go

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

The German/European Sovereign Tech fund has committed to invest 230k € to improve #Nix and related projects, in order to further the security and reliability of crucial software infrastructure :

https://discourse.nixos.org/t/transforming-global-software-distribution-with-nixpkgs/64989

The German/European Sovereign Tech fund has committed to invest 230k € to improve #Nix and related projects, in order to further the security and reliability of crucial software infrastructure :

https://discourse.nixos.org/t/transforming-global-software-distribution-with-nixpkgs/64989

@nobodyinperson with #nix flakes your nix (the package manager cli tool) version is still "unpinned". If the flake depends on a recent change to the flake schema your nix might be too old for it. Probably not much of a practical issue, but after using #guix for a while I am starting to prefer its approach: the guix revision you use pins _everything_, the guix CLI, all packages, all services, ... . `guix time-machine` "just" delegates everything to an entire other revisions' guix process.

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

#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 #nix flakes or #apptainer​s or whatever floats your boat to do proper pinning of an environment - where you can pin your package manager itself.

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

Find why your devShell, package, etc depends on something interactively!

`nix-tree --derivation .#devShells.x86_64-linux.default`

https://github.com/utdemir/nix-tree

#Nix #NixFlakes #NixOS

Find why your devShell, package, etc depends on something interactively!

`nix-tree --derivation .#devShells.x86_64-linux.default`

https://github.com/utdemir/nix-tree

#Nix #NixFlakes #NixOS

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

#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

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

@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.

Das kannste machen.

... but we both know you won't

#nix #nixos

I am not easy to get hyped up about things, even in projects I am already hyped up about. One of the projects I am very hyped up about is ca-derivations in #Nix. I use them in my leaf NixOS modules for years now and they are a key component to reduce rebuilds across nixos-rebuild switch to a near minimum. Without my changes a seemingly no-op update to my nixpkgs flake input triggers 20+ builds which don't change anything.

#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

#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

#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

#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

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

@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.

@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…

@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.

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

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

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 …

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

@Pol

NixOS 102: NixOS on a Digital Ocean Droplet

All hail nixos-generators!

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

#nix #nixos

Ticket sales for #NixCon2025 are open! 🎉 🎆

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

#NixCon #Nix #NixOS

Ticket sales for #NixCon2025 are open! 🎉 🎆

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

#NixCon #Nix #NixOS

Ticket sales for #NixCon2025 are open! 🎉 🎆

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

#NixCon #Nix #NixOS

NixOS 102: NixOS on a Digital Ocean Droplet

All hail nixos-generators!

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

#nix #nixos

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

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

A new module is available: `services.wayvnc` wayvnc is a VNC server for wlroots based Wayland compositors.
#NixOS #Nix #HomeManager

A new sketchybar module has been added. - Simple configuration with a single `config` option that accepts the configuration as lines, a file, or a directory. - Support for both bash and lua configuration types - `extraLuaPackages` option for additional Lua dependencies - `extraPackages` option for additional runtime dependencies - Integrated launchd service management
#NixOS #Nix #HomeManager

A new module is available: 'programs.waveterm'. WaveTerm is a modern, GPU-accelerated terminal emulator that combines the power of a traditional terminal with a smart workspace. It provides features like automatic command history with contextual search, workspace organization, multiple terminals in a single window, and integrated AI assistance.
#NixOS #Nix #HomeManager

❄️ NixOS 25.05 has been released.

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

#NixOS #Nix #Linux

❄️ NixOS 25.05 has been released.

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

#NixOS #Nix #Linux

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

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

NixOS 25.05 "Warbler" is now released! 🎉

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

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

NixOS 25.05 "Warbler" is now released! 🎉

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

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

A new module is available: 'programs.lutris'. Lutris is an open-source gaming platform for Linux. It simplifies the installation and management of games from various sources, including Steam, GOG, Epic Games Store, Ubisoft Connect, and more. The module allows you to configure Lutris settings including runner options, system preferences, and interface customization.
#NixOS #Nix #HomeManager

A new module is available: 'programs.sway-easyfocus'. sway-easyfocus is a tool that provides window switching capabilities for the Sway window manager. It works similarly to i3-easyfocus, displaying labels on visible windows to allow quick selection and focus without moving your hand to the mouse or using directional keys.
#NixOS #Nix #HomeManager

A new module is available: 'programs.i3bar-river'. i3bar-river is a status bar specifically designed for the River Wayland compositor, using the same protocol as i3bar. It allows you to display system information and status updates in a customizable bar, and works well with tools that output i3bar-compatible JSON like i3status.
#NixOS #Nix #HomeManager

A new module is available: 'programs.onagre'. Onagre is a simple but flexible application launcher for X11 and Wayland. Written in Rust, it features fuzzy search, customizable themes, configurable keybindings, and supports executing custom commands. Its design philosophy focuses on simplicity and efficiency while remaining highly configurable.
#NixOS #Nix #HomeManager

A new module is available: 'services.clipcat'. Clipcat is a clipboard manager for Wayland and X11 with a daemon/client architecture. It offers a secure way to store and manage clipboard history with features like content filtering, custom maximum item count, and history persistence. The module provides options to configure the daemon, enable clipboard syncing, and set up the included GTK client.
#NixOS #Nix #HomeManager

A new module is available: 'programs.visidata'. VisiData is a terminal spreadsheet multitool for exploring and arranging data. It allows you to quickly open, explore, summarize, and analyze datasets in various formats including CSV, Excel, SQL, HTML, JSON, and many more. The module lets you configure VisiData's behavior through options and custom key bindings.
#NixOS #Nix #HomeManager

A new module is available: 'programs.mpvpaper'. mpvpaper is a utility that allows you to use videos or complex animations as your desktop wallpaper using mpv. It supports various video formats and provides configuration options like framerate limits and scaling methods. The module allows you to specify target outputs, video options, and additional mpv arguments.
#NixOS #Nix #HomeManager

A new module is available: 'programs.kickoff'. Kickoff is a minimalist application launcher for Wayland designed to be fast and lightweight. It features a clean interface that appears at the center of the screen, fuzzy search functionality, and customizable appearance through theming. The module allows configuration of hotkeys, theme settings, and launch options.
#NixOS #Nix #HomeManager

A new module is available: 'programs.rmpc'. RMPC (Remote MPD Client) is a minimalist TUI client for the Music Player Daemon. It provides a simple interface to control MPD with features like playlist manipulation, library browsing, and song searching. The module allows you to customize its behavior, keybindings, and connection settings.
#NixOS #Nix #HomeManager

A new module is available: 'programs.onedrive'. OneDrive is Microsoft's cloud storage service. This module integrates the open source OneDrive client for Linux which provides synchronization capabilities between your local file system and OneDrive. The module allows configuring multiple OneDrive accounts, sync options, and notification preferences.
#NixOS #Nix #HomeManager

A new module is available: 'programs.nix-init'. nix-init generate Nix packages from URLs.
#NixOS #Nix #HomeManager

A new module is available: `programs.sesh` Sesh is a CLI that helps you create and manage tmux sessions quickly and easily using zoxide.
#NixOS #Nix #HomeManager

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

Our own @arichtman is mentioned at the end.

https://youtu.be/-Ck0c9bpzjw

#nix #nixos

A new module is available: `services.mpdscribble` Adds a module for mpdscribble, a music player daemon scrobbler.
#NixOS #Nix #HomeManager

A new module is available: `programs.ripgrep-all` Adds a module for ripgrep-all, a tool for searching text in files.
#NixOS #Nix #HomeManager

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

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

A new module is available: 'services.jankyborders'. JankyBorders adds customizable borders to macOS application windows. It provides features like adjustable border width, color, radius, and window title display. This module is particularly useful for improving window visibility when using a tiling window manager on macOS.
#NixOS #Nix #HomeManager

A new module is available: 'services.skhd'. Simple Hotkey Daemon (skhd) is a simple macOS hotkey daemon that allows defining system-wide keyboard shortcuts for launching applications and shell commands. The module enables configuration of key combinations, modifiers, and associated actions, and integrates well with window managers like yabai.
#NixOS #Nix #HomeManager

A new module is available: 'programs.distrobox'. Distrobox is a tool that uses podman or docker to create containers using the Linux distribution of your choice. It allows you to use the package manager of other distributions to install applications that aren't available in NixOS, and integrates those applications with your host system. The module enables configuration of container definitions and distrobox settings.
#NixOS #Nix #HomeManager

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

Our own @arichtman is mentioned at the end.

https://youtu.be/-Ck0c9bpzjw

#nix #nixos

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...

NixOS 100: Defining and Using Custom NixOS Options

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

#nix #nixos

NixOS 100: Defining and Using Custom NixOS Options

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

#nix #nixos

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

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

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

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

Has *anyone ever* gotten #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

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.

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]'
```

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

#nix #nixos #FormalVerifcation

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

#nix #nixos

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

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

Flakes Have Failed

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

#Nix #NixOS

Flakes Have Failed

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

#Nix #NixOS

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

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

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

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

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

#nix #nixos

#nix #nixos

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

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

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

🚨 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

Opam's Nix system dependency mechanism

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

#ocaml #opam #nix

Opam's Nix system dependency mechanism

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

#ocaml #opam #nix

NixOS 98: Flox vs Devenv

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

#Nix #NixOS #Flox #Devenv

NixOS 98: Flox vs Devenv

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

#Nix #NixOS #Flox #Devenv

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

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

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

@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.

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?

`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

Damn. I love #nix and #nixos but NixOS updates are just annoying. They're painfully slow and lag the whole system even on high-end machines.

I really do enjoy not being able to use my system for 1 hour just to update it. I thought I left this behind when I left Windows.

EDIT: after further investigation this is actually mistaken and doesn't affect the majority of store operations; this one is likely not the issue

Quick #nix PSA: do you run a binary cache? Is WantMassQuery: 1 not in its nix-cache-info file?

~~If it's not in there, clients will take an extremely long time to query whether paths are present in your cache by trying them one by one serially.~~

EDIT: after further investigation this is actually mistaken and doesn't affect the majority of store operations; this one is likely not the issue

Quick #nix PSA: do you run a binary cache? Is WantMassQuery: 1 not in its nix-cache-info file?

~~If it's not in there, clients will take an extremely long time to query whether paths are present in your cache by trying them one by one serially.~~

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

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

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

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

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

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

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.

In the same chat 😆 :

@ronefroni:

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

Kelsey:

I'm choosing Docker.

#Nix #NixOS #Docker #Kubernetes

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

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

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

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

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

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

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

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

Dear NixOS,

Stop renaming shit.

#NixOS #Nix #Linux

Dear NixOS,

Stop renaming shit.

#NixOS #Nix #Linux

There is also a nice article by nixcademy that gives more background on laziness, has some illustrations and more examples for fix and overlays: https://nixcademy.com/posts/what-you-need-to-know-about-laziness/

#Nix #NixOS

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

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

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.

🚨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...

> 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.

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

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

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

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

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

https://shealevy.com/blog/2018/08/05/understanding-nixs-string-context/

A new way to define news is available. Instead of editing the previous news.nix file, you can now define entries using individual files. This should reduce the number of merge conflicts.
#NixOS #Nix #HomeManager

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

So far i found unused dependencies in git [2], gst-plugins-bad [3], [4], linux-pam [5], networkmanager [6] and vlc [7]. And i don't plan on stopping! All these unused dependencies cause unnecessary strain on our CI and are trivial to clean up. Some of these dependencies are even old enough to drink!

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

[2] https://github.com/NixOS/nixpkgs/pull/391664
[3] https://github.com/NixOS/nixpkgs/pull/394242
[4] https://github.com/NixOS/nixpkgs/pull/394423
[5] https://github.com/NixOS/nixpkgs/pull/396135
[6] https://github.com/NixOS/nixpkgs/pull/395311
[7] https://github.com/NixOS/nixpkgs/pull/391226

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

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

#nix #nixpkgs

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

#nix #nixpkgs

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

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

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

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

@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.

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

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

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 #LightningTalk​s.
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!

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 #LightningTalk​s.
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!

dear internet, i have a nixos with an efi-only partition and i want to do luks unlock via ssh from inside initrd. when setting network settings into `boot.initrd.network` and ssh config (with host keys in /boot/efi) into `boot.initrd.network.ssh`, i do not get any action in stage 1 attempting to either bring up the network nor launch SSH. i get the normal systemd-udev prompt for the luks passphrase. any ideas?
#nixos #nix

Announcing #Aux Foundation, a binary bootstrap chain for #Nix!

https://forum.auxolotl.org/t/aux-foundation-is-now-available/885

Announcing #Aux Foundation, a binary bootstrap chain for #Nix!

https://forum.auxolotl.org/t/aux-foundation-is-now-available/885

Announcing the `v1.0.0` release of #Aux Lib, a fully-featured #Nix library with its own module system.

https://forum.auxolotl.org/t/aux-lib-v1-0-0-is-now-available/883

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

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

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

#nixos #nix

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

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

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

#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

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

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 :)

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

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 :)

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

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

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

[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

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 `...`.)

#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.

#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

@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

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

Brought to you by @domenkozar of course.

@lizzy I could swear you're describing #nix

I had a super nice time on Lanzarote. Big thanks to the sponsors: numtide@fosstodon.org @nixos_org @cyberus @flox @cachix and rest!

You can read the full report of #OceanSprint here: https://oceansprint.org/reports/2025/

#Nix #NixOS #Hackathon #OpenSource

I had a super nice time on Lanzarote. Big thanks to the sponsors: numtide@fosstodon.org @nixos_org @cyberus @flox @cachix and rest!

You can read the full report of #OceanSprint here: https://oceansprint.org/reports/2025/

#Nix #NixOS #Hackathon #OpenSource

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

#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

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

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

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

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

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

🌊💻 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

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

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

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

🌊💻 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

🌊💻 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

Spending a chunk of my weekend wrangling servers and once again frustrated with Guix in particular for how heavyweight the package manager is. There's this one VM that only needs like 5-10G of disk space* and 1G of RAM to do its actual _job_ but if I don't provision it with twice as much RAM and four times as much disk, `guix pull` and `guix system reconfigure` are liable to run the thing completely out of storage and crash.

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

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/

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

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

https://github.com/jakehamilton/config

Flakes are officially out!

#Nix

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

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

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

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

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

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

Hey #Nix #NixOS people. I am once again making a thesis that Nix docs are not "bad", their discoverability is bad.

I've summarized my observations in a comment on an existing (yet pretty stale) issue on GitHub https://github.com/NixOS/nixos-homepage/issues/705#issuecomment-2708928266

How do we get this to reach "the right people" and start making some moves to improve discoverability? Boosts and advice appreciated.

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

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

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

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

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

What features of #Nix flakes do you actually use? Please let me know! Packages? NixOS Configurations? Checks? Hydra Jobs? Let me know what is important for your use case.

I wouldn't be nearly as willing to experiment with software or self-host different services if it wasn't for #NixOS. It feels liberating to do basically whatever I want with my computers without the overbearing worry of irreversibly breaking something, or getting my PC into an unrecoverable state. #Nix is great tech and I really want to see it and similar tools/ecosystems thrive

I’ll be speaking at Cloud Native Days LA in #SCaLE22x about leveraging #nix / #nixos to build pretty small container images. I’ll make an attempt at showing you the benefits of using something like Nix to do this, and daydream about possible future integrations. Looking forward to seeing you there!

Want to help out Nixpkgs but don't know what to do? I compiled a list of still failing packages due to switching to GCC-14 in stdenv a while back. GCC changed some warning to errors in this version and lots of especially older projects fail to build now.

Plenty of examples of the fix already in Nixpkgs, ideal for first time contributors.

https://polygon.github.io/fix-nixpkgs-gcc14/

#nix #nixos #nixpkgs

It was such a thrill to talk about #nix at #fosdem ! I'm about a month late posting this, but here is the recording of my talk on "My Nixos-Powered Homelab" #nixos #homelab
https://fosdem.org/2025/schedule/event/fosdem-2025-6330-my-nix-powered-homelab/

I wouldn't be nearly as willing to experiment with software or self-host different services if it wasn't for #NixOS. It feels liberating to do basically whatever I want with my computers without the overbearing worry of irreversibly breaking something, or getting my PC into an unrecoverable state. #Nix is great tech and I really want to see it and similar tools/ecosystems thrive

Flakes themselves don't have a versioning system. #Nix #Scale22x

It was such a thrill to talk about #nix at #fosdem ! I'm about a month late posting this, but here is the recording of my talk on "My Nixos-Powered Homelab" #nixos #homelab
https://fosdem.org/2025/schedule/event/fosdem-2025-6330-my-nix-powered-homelab/

I wouldn't be nearly as willing to experiment with software or self-host different services if it wasn't for #NixOS. It feels liberating to do basically whatever I want with my computers without the overbearing worry of irreversibly breaking something, or getting my PC into an unrecoverable state. #Nix is great tech and I really want to see it and similar tools/ecosystems thrive

Want to help out Nixpkgs but don't know what to do? I compiled a list of still failing packages due to switching to GCC-14 in stdenv a while back. GCC changed some warning to errors in this version and lots of especially older projects fail to build now.

Plenty of examples of the fix already in Nixpkgs, ideal for first time contributors.

https://polygon.github.io/fix-nixpkgs-gcc14/

#nix #nixos #nixpkgs

I’ll be speaking at Cloud Native Days LA in #SCaLE22x about leveraging #nix / #nixos to build pretty small container images. I’ll make an attempt at showing you the benefits of using something like Nix to do this, and daydream about possible future integrations. Looking forward to seeing you there!

800 lines of #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 #PrusaMINI​s
· 🔐 all password-protected and certs from #LetsEncrypt

#Prusa #NixOS

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

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

800 lines of #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 #PrusaMINI​s
· 🔐 all password-protected and certs from #LetsEncrypt

#Prusa #NixOS

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

🌍 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

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 #nix / #NixOS workshop geben.

#Tübix #Tübix2024

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

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/

Explaining the #Nix store to people

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

🎉 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

🎉 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

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/

> 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

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

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

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

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

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

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

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

> 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

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.

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

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)

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/

A new module is available: 'services.wpaperd'. This replaces the existing module, 'programs.wpaperd', and adds a systemd service to ensure its execution.
#NixOS #Nix #HomeManager

A new module is available: 'programs.jqp'. A TUI playground for experimenting with `jq`.
#NixOS #Nix #HomeManager

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/

A new module is available: 'programs.earthly'. Earthly is a build configuration framework utilizing buildkit and Dockerfile-like syntax for fast builds and simplicity.
#NixOS #Nix #HomeManager

Running `nixos-rebuild` on a Raspberry Pi
Running `nixos-rebuild --target-host pihole` on my server

#Nix #NixOS

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

#nixos #flakes #nix

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

A new module is available: 'services.wluma'. Wluma is a tool for Wayland compositors to automatically adjust screen brightness based on the screen contents and amount of ambient light around you.
#NixOS #Nix #HomeManager

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/

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

@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

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

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

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

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

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

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

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

#nixos #flakes #nix

@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

@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

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

@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

@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

#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

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

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

@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

Running `nixos-rebuild` on a Raspberry Pi
Running `nixos-rebuild --target-host pihole` on my server

#Nix #NixOS

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

#nix #nixos #nixDarwin

@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

#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

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/

#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

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

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

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

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

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

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

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.)

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

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

🌍🚀 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

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

🌍🚀 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

🎙️ 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

#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!

Hey #nix users. Is there a way to add a font in a flake.nix only for the "nix develop" or is that generally impossible as fonts are always system wide?

NixOS.kr 디스코드 서버가 막 생겼습니다.
https://discord.gg/AMp9VYR44J
#nix #nixos

Nix: string interpolation of directories gone awry https://lobste.rs/s/e7clsc #nix
https://fzakaria.com/2025/02/02/nix-string-interpolation-of-directories-gone-awry.html

A new module is available: 'services.linux-wallpaperengine'. Reproduce the background functionality of Wallpaper Engine on Linux systems.
#NixOS #Nix #HomeManager

A new module is available: 'programs.aerospace'. AeroSpace is an i3-like tiling window manager for macOS. See https://github.com/nikitabobko/AeroSpace for more.
#NixOS #Nix #HomeManager

The Firefox module now provides a 'programs.firefox.profiles.<name>.preConfig' option. It allows extra preferences to be added to 'user.js' before the options specified in 'programs.firefox.profiles.<name>.settings', so that they can be overwritten.
#NixOS #Nix #HomeManager

Is NixOS truly reproducible? https://lobste.rs/s/j9iugq #nix
https://luj.fr/blog/is-nixos-truly-reproducible.html

Guix User and Contributor Survey 2024: The Results (part 2) https://lobste.rs/s/cgvvhc #linux #lisp #nix
https://guix.gnu.org/en/blog/2025/guix-user-and-contributor-survey-2024-the-results-part-2/

Oh boy is working with strings terrible in #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...

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

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

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

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

Announcing Lix 2.92 "Bombe glacée" https://lobste.rs/s/qyd4pk #nix #release
https://lix.systems/blog/2025-01-18-lix-2.92-release/