NixOS CUDA - Public Room Timeline

	NixOS CUDA	290 Members
	CUDA packages maintenance and support in nixpkgs \| https://github.com/orgs/NixOS/projects/27/ \| https://nixos.org/manual/nixpkgs/unstable/#cuda	58 Servers

Sender	Message	Time
12 Nov 2025
Daniel Fahey	Yeah you might want to use `extra-substituters` (I never grok'd the difference, if I'm being honest)	16:06:51
Daniel Fahey	not sure if it's different with Nix on Ubuntu, but on NixOS, I have to rebuild the system before the binary cache is available. Is there a rebuild step with plain Nix?	16:08:28
Daniel Fahey	I reckon they might be in a private repo hinted at in https://github.com/flox/nixpkgs/pull/3#issuecomment-1276439899 But the https://github.com/flox/nixpkgs/tree/unstable is a simple fork that I'd like to see sync'd/rebased from upstream Nixpkgs more frequently. Gaétan Lepage is this is the kind of thing that could be discussed in your CUDA Team meetings, and maybe brought up to the Steering Committee for discussion with Flox?	16:12:16
Gaétan Lepage	Flox is managing their cache internally. As you pointed, they use an internal fork of nixpkgs that is slightly delayed from `nixos-unstable` (or `nixos-unstable-small`). It's normal that their cache is less fresh than `chache.nixos-cuda.org`.	16:13:41
Gaétan Lepage	The difference is that they have the permission from Nvidia to redistribute their binaries.	16:14:01