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#nix

8 posts8 participants1 post today
Public
David Reed

#introduction for my lovely new server.

I'm David (most contexts) or Stacktrace (#RollerDerby). I'm a software engineer at #Slack and I love building #FOSS (#Python, #Django, #Rust, and #Nix).

I made:

- stave.app, volunteer management for roller derby.
- paytransparency.work, tracking pay transparency laws.
- bibliothekai.ktema.org, cataloging translations of Greek & Roman classics.

My non-tech interests are #AncientGreek, my beloved #dachshund Mishka, botanic gardens, and #SciFi.

Replied in thread
Public
Linux Is Best

@BrodieOnLinux@mstdn.social

NixOS can be a good operating system, but it does have a few things that drives me nuts.

For example, they keep renaming their pack names and package aliases, and that becomes a problem because the system is looking for the name, and sometimes it wants the alias. So your whole system may refuse to install or rebuild, because some name somewhere has changed.

#NixOS #Nix #Linux

Replied in thread
Public *
HoldMyType

@alios
GOAL: or Isolated , interoperable env , shells by path, w/ central config cc

envs need not be interoperaple for different langs , say cc has a "devenv.lib.mkshell" for a rust tool `x` which is a runtime dep of epkgs 'ey`for rust work
Now If I enter this devshell with nix `develop ` and do a ` cargo install x` here
path of x is
> .devenv/state/cargo-install/bin/
Do note that my PWD is not ${HOME} here.
> But if I do a cargo install x from ${HOME} , it ll be in ~/.cargo/bin
Now lets say I install a melpapackages `ey` with my dotfiles' emacs.nix "emacs overlay`
It may be
`ls ~/.emacs.d/elpa/ | grep ey.elc` iff it's byte-compiled.
ey won't find it `x` , till you explicitly add this emacs load-path or to NIX-BUFFER's default.nix list of deps /project [This is just for the projects of 1 lang , nearly any serious work has > = 2] ,
or write .envrc /per project , so no global devenv/devshell.
Not every dir need be byte compiled
Possible reasons
While -
1. Nix does follow the XDG specs, Emacs does not fully follow it for its configuration and data files.
2. NIx Does not follow FHS hierarchy, Emacs Does.
3. Nix build re reproducible.
4. Nix is content addressed , store (hashed) paths
nix-instantiate --eval-only --expr '(import <nixpkgs> {}).emacs.outPath', it could be emacs or go or cargo or whatever your need, it need not have .
Some of your emacs data can be here. But I care bout getting deps in the path

One possible way could be to write a global devshell just for my init.el and launch it from there. But it's not easily extendable , more langs' projects ll put me back to square one.
Just nix-buffer seems to unsustainable
#nix #emacs

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blinry

Learned a neat #Nix trick: You can easily cross-compile all programs in Nixpkgs (as long as they support the target platform)!

So instead of `nix build nixpkgs#ripgrep`, to build ripgrep for Windows, you can use:

nix build nixpkgs#pkgsCross.mingwW64.ripgrep

Other example targets are:

- "aarch64-multiplatform" (64-bit ARM)
- "gnu32" (i686)
- "riscv64" (64-bit RISC-V)
- "musl64" (x86_64, using musl instead of glibc)

Many more are defined in this file: github.com/NixOS/nixpkgs/blob/

Nix Packages collection & NixOS. Contribute to NixOS/nixpkgs development by creating an account on GitHub.
GitHubnixpkgs/lib/systems/examples.nix at master · NixOS/nixpkgsNix Packages collection & NixOS. Contribute to NixOS/nixpkgs development by creating an account on GitHub.
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Public
​

Welp turns out this RNG trick doesn't actually work in #Nix pure eval mode since in that mode, you can only access a path using a string with context for that path, but that causes Nix to materialize that path. Hmm back to the drawing board I guess

Public
pat
["

looking up \"mac equivalent of windirstat\" is going to result in me installing nix

literally this specific reddit post and then I guess there's \"nix-darwin\" sō…

", "

looking up \"mac equivalent of windirstat\" is going to result in me installing nix

literally this specific reddit post and then I guess there's \"nix-darwin\" sō…

"]
Public
Jake Hamilton

🚨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...

Public
Dresden Systems Meetup

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

Public
Freelock

Made a ton of improvements to drupal.org/project/drupal_flak -

- start-config now installs your existing site from configuration
- xdrush triggers an xdebug session from drush
- update-flake makes it easy to get new features in the future
- Composer now visible to PHP, so Project Browser and auto updates work
- Updates to include block to avoid conflicts with other environments

Check it out! In some ways this is easier/faster than #ddev ! #drupal #nix

Drupal.org · Drupal FlakeA Nix-native way to get started with Drupal development. This is in early stages, but provides a fully functional local dev environment already. This flake and context about what Nix is and how it works was presented at DrupalCon Atlanta. We will add the session video here when it is publicly available. Flake location The main location for this flake is now on Drupal.org - please file issues at https://www.drupal.org/project/drupal_flake. It is also mirrored at Github, at https://github.com/freelock/drupal-flake .
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