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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/#cuda60 Servers

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17 Mar 2026
@connorbaker:matrix.orgconnor (he/him)No, I packaged a bunch of stuff in https://github.com/connorbaker/cuda-packages but haven't had the chance to upstream it because they have massive dependency chains and I also need to support every release since CUDA 11.4 🫠23:47:30
@kirillrdy:matrix.orgkirillrdyah awesome ! thanks for the link23:48:25
@kirillrdy:matrix.orgkirillrdyi guess i could have searched myself23:48:42
18 Mar 2026
@justbrowsing:matrix.orgKevin Mittman (jetlagged/UTC-7) kirillrdy: do you happen to know how is it related to libnvonnxparser ? 03:55:22
@connorbaker:matrix.orgconnor (he/him)iirc it provides that lib when built; see https://github.com/onnx/onnx-tensorrt/blob/10.15-GA/NvOnnxParser.h. I think previously when I packaged it (with the intention of upstreaming it to Nixpkgs, never got around to it) I preferred to use libnvonnxparser from onnx-tensorrt instead of the one provided by the tensorrt binary archives06:00:28
@connorbaker:matrix.orgconnor (he/him)ugh there's still a typo on the TensorRT page where ONNX is spelled "ONYX" https://developer.nvidia.com/tensorrt#:~:text=for%20production%20applications.-,ONYX,-%3A06:01:30
@connorbaker:matrix.orgconnor (he/him) GaƩtan Lepage: various patches for CUDA 13 stuff https://github.com/ConnorBaker/blender-temp/blob/7132a52cd929b764e83dc97fb0596b8caae58c95/overlay.nix 06:43:24
@glepage:matrix.orgGaƩtan LepageThanks for sharing :)11:32:30
@ereslibre:ereslibre.socialereslibre removed their profile picture.15:52:02
@ereslibre:ereslibre.socialereslibrehello! was wondering, can we get github.com/NixOS/nixpkgs/pull/489218 merged? Thank you :)15:52:49
@glepage:matrix.orgGaƩtan Lepage connor (burnt/out) (UTC-8), can you stamp https://github.com/NixOS/nixpkgs/pull/501079 whenever you have a minute please? 17:55:27
@ereslibre:ereslibre.socialereslibre thanks connor (burnt/out) (UTC-8) ! 17:56:59
20 Mar 2026
@ccicnce113424:matrix.orgccicnce113424 joined the room.05:20:39
21 Mar 2026
@zopieux:matrix.org@zopieux:matrix.org joined the room.15:31:20
@zopieux:matrix.org@zopieux:matrix.orgLooks like https://hydra.nixos-cuda.org/ is down?15:32:25
@glepage:matrix.orgGaƩtan LepageYes, the web interface has been flaky today. I'll try to restart the box.20:26:20
@glepage:matrix.orgGaƩtan LepageSeems up, for now at least20:38:02
@zopieux:matrix.org@zopieux:matrix.orgThanks!20:38:43
22 Mar 2026
@glepage:matrix.orgGaƩtan Lepage onnxruntime bump & fix (testing ongoing)
https://github.com/NixOS/nixpkgs/pull/501901
00:47:57
@glepage:matrix.orgGaƩtan Lepage * FYI: onnxruntime bump & fix (testing ongoing)
https://github.com/NixOS/nixpkgs/pull/501901
00:48:08
@glepage:matrix.orgGaƩtan LepageI'll probably merge it later today. Testing has been good so far.09:23:22
23 Mar 2026
@layus:matrix.org@layus:matrix.org left the room.13:23:40
@glepage:matrix.orgGaĆ©tan Lepage āœ… Merged!
Feel free to report any regression here :)
16:12:28
24 Mar 2026
@gyara:matrix.org~ē¶¾ joined the room.02:48:43
@ccicnce113424:matrix.orgccicnce113424 https://github.com/NixOS/nixpkgs/pull/498612 02:49:58
@justbrowsing:matrix.orgKevin Mittman (jetlagged/UTC-7)
In reply to @ccicnce113424:matrix.org
https://github.com/NixOS/nixpkgs/pull/498612
Would it be helpful to have a repackaging guide for the GPU driver?
04:38:48
@glepage:matrix.orgGaƩtan Lepage

FYI: The default cudaPackages version was updated from 12.8 to 12.9

I tested core packages, but I would not be surprised if regressions were to show up. Feel free to report them here.

https://github.com/NixOS/nixpkgs/pull/498861

11:21:45
@ccicnce113424:matrix.orgccicnce113424
In reply to @justbrowsing:matrix.org
Would it be helpful to have a repackaging guide for the GPU driver?
Could you clarify what you mean by 'repackaging' and what specific scenarios the guide would cover?
16:54:40
@justbrowsing:matrix.orgKevin Mittman (jetlagged/UTC-7) Well for example there is a reference to bumblebee but https://docs.nvidia.com/datacenter/tesla/driver-installation-guide/latest/optimus-laptops-and-multi-gpu-desktop-systems.html 17:31:50
25 Mar 2026
@connorbaker:matrix.orgconnor (he/him) GaƩtan Lepage: would you have the bandwidth to review https://github.com/NixOS/nixpkgs/pull/497675? 00:26:38

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