Using #Nix as a package manager on top of a #Guix system is really easy, just a matter of adding '(service nix-service-type)' to the system services and reconfiguring.

This gives us access to Nix-land, e.g.:

nix-channel --add https://nixos.org/channels/nixpkgs-unstable
nix-channel --update
nix-shell --packages cowsay --run "cowsay hello"

A couple more steps if you want to save things in a profile, see:

https://guix.gnu.org/manual/en/html_node/Miscellaneous-Services.html#Nix-service

Handy! E.g. for certain things that are still difficult to package under Guix.

Is there anything to convert OpenAPI specs to Nix ?

#Nix#NixLang

Here me out.

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

#nix #nixos #remotebuilds

The meetup was cool! Enjoyed it a lot, met lovely people. I even got to get #NixOS installed in a VM and played with it a bit. That makes me a #Nix user now!

It should be possible to install Nix as a package manager on top of my #Guix, I'm going to try that now.

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

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

#nix #nixos

Security Advisory: Privilege Escalations in Nix, Lix and Guix

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

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

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

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

#Nix#NixOS#CI#Security#Vulnerability

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

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

#Nix#Lix

Security pre-disclosure:

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

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

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

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

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