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NixOS CUDA

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CUDA packages maintenance and support in nixpkgs | https://github.com/orgs/NixOS/projects/27/ | https://nixos.org/manual/nixpkgs/unstable/#cuda57 Servers

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9 Nov 2025
@sporeray:matrix.orgRobbie BuxtonThat’s a real shame01:05:52
@sporeray:matrix.orgRobbie Buxton Well I guess the silver lining here is we have the cuda teams new hydra instance 01:06:55
@sporeray:matrix.orgRobbie Buxton https://github.com/nixos-cuda/infra 01:08:31
@sporeray:matrix.orgRobbie Buxton Supported by the great as always work of @[connor (burnt/out) (UTC-8)] @[SomeoneSerge (back on matrix)] and @[Gaétan Lepage] ! 01:09:03
@9hp71n:matrix.orgghpzin (moved to @ghpzin:envs.net) changed their display name from ghpzin to ghpzin (moved to @ghpzin:envs.net).15:03:30
@mat:allpurposem.atAll-Purpose Mat joined the room.20:36:16
@mat:allpurposem.atAll-Purpose MatHey hey, I was looking into enabling cudaSupport on my system, but it looks like the nix-community cache no longer has CUDA packages. Was this moved somewhere else recently?20:39:00
@glepage:matrix.orgGaétan Lepage Yes, you can use this now: https://github.com/nixos-cuda/infra?tab=readme-ov-file#binary-cache 21:07:45
@mat:allpurposem.atAll-Purpose MatAh sweet, thank you! 21:13:41
10 Nov 2025
@ss:someonex.netSomeoneSerge (back on matrix)Hey-heeeey, I was wondering if there's room to optimize our CUDA Weekly timeslot? Myself, I've had something come up for Tuesday EEST 5PMs, for example. Let's try crabfit and see if there's maybe an obvious way to reschedule (if there isn't, we just keep the slot) https://crab.fit/cuda-weekly-26215910:52:30
@ss:someonex.netSomeoneSerge (back on matrix)Well in your PR you were putting those hooks directly into stdenv IIRC10:55:06
@glepage:matrix.orgGaétan Lepage latest triton, 3.5.0, was merged!
https://github.com/NixOS/nixpkgs/pull/455822
16:09:52
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Nah, they exist outside of stdenv in arrayUtilities. Some people wanted to move them into or use them in stdenv.16:27:48
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Wrote a brief summary of the hooks issue in response here https://github.com/NixOS/nixpkgs/pull/459416#issuecomment-351268427716:28:33
11 Nov 2025
@daniel-fahey:matrix.orgDaniel Fahey Can I get a nixpkgs-review pr 460701 --extra-nixpkgs-config '{ cudaSupport = true; allowUnfree = true;}' on this https://github.com/NixOS/nixpkgs/pull/460701 from someone with the spare compute (pretty please) 16:53:19
@apyh:matrix.orgapyh
In reply to @daniel-fahey:matrix.org
Can I get a nixpkgs-review pr 460701 --extra-nixpkgs-config '{ cudaSupport = true; allowUnfree = true;}' on this https://github.com/NixOS/nixpkgs/pull/460701 from someone with the spare compute (pretty please)
on it
17:00:45

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