| 3 Apr 2026 |
 Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
Some quotes from the conclusion:
"Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
"Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
"Lack of cached aarch64 CUDA builds"
👀💸
"Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
"Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:12:17 |
| Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
Some quotes from the conclusion:
"Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
"Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
"Lack of cached aarch64 CUDA builds"
👀💸
"Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
"Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:16:51 |
| Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
Some quotes from the conclusion:
"Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
"Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
"Lack of cached aarch64 CUDA builds"
👀💸
"Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
"Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:17:20 |
| Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
Some quotes from the conclusion:
"Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
"Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
"Lack of cached aarch64 CUDA builds"
👀💸
"Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
"Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:17:45 |
| Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
Some quotes from the conclusion:
-
"Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
-
"Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
-
"Lack of cached aarch64 CUDA builds"
👀💸
-
"Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
-
"Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:18:57 |
| Gaétan Lepage | * Neat project!
https://www.youtube.com/watch?v=AvK_gi_snJE
I find it really cool that someone wrote a convenient flake to make the DGX spark work OOTB.
Some quotes from the conclusion:
- "Nixpkgs CUDA aarch64 ecosystem is quite healthy"
Thanks to nix-community's 80 core ampere system
- "Flakes make a good user interface"
This one is for you SomeoneSerge (matrix works sometimes)
- "Lack of cached aarch64 CUDA builds"
👀💸
- "Uneven freshness of packages"
Until we unlock core and maintainer cloning, that's going to be tough to change (especially reagrding how fast the whole space is moving).
- "Community lacks GPU hardware"
Yes. And CPU too 😅
| 23:20:11 |
| 4 Apr 2026 |
 neobrain | It's working really nicely on mine too, but the lack of cache definitely hurts 😭 | 07:07:44 |
 connor (he/him) | Oh yikes a 1.0 release from the Helion team: https://github.com/pytorch/helion/releases/tag/v1.0.0 | 17:34:57 |
| 6 Apr 2026 |
| Gaétan Lepage | On it: https://github.com/NixOS/nixpkgs/pull/507373 | 20:57:31 |
|  Elliot Berman joined the room. | 21:51:37 |
| Gaétan Lepage | 🆕 transformer-engine added!
https://github.com/NixOS/nixpkgs/pull/473703
That was not a trivial one! | 23:42:59 |
| Gaétan Lepage | * 🆕 transformer-engine added!
https://github.com/NixOS/nixpkgs/pull/473703
That was not a trivial one! | 23:43:17 |
| Gaétan Lepage | * 🆕 transformer-engine added!
https://github.com/NixOS/nixpkgs/pull/473703
That was not a trivial one! Thanks to connor (burnt/out) (UTC-8) and @NickCao for the review. | 23:43:41 |
| 9 Apr 2026 |
| connor (he/him) | https://github.com/NixOS/nixpkgs/pull/507990 | 06:41:09 |
| connor (he/him) | | 06:42:04 |
| 10 Apr 2026 |
| Gaétan Lepage | Thanks a lot SomeoneSerge (matrix works sometimes), https://github.com/NixOS/nixpkgs/pull/500971 indeed fixed the issue! | 22:34:03 |
| 12 Apr 2026 |
|  kaya 𖤐 changed their profile picture. | 05:53:35 |
|  leona changed their profile picture. | 12:15:52 |
| 14 Apr 2026 |
 danielrf | connor (burnt/out) (UTC-8): TensorRT support in onnxruntime. It pretty much just works if you turn on support for it: https://github.com/NixOS/nixpkgs/pull/509976 | 13:40:27 |
| 15 Apr 2026 |
|  John D joined the room. | 22:22:58 |
| 16 Apr 2026 |
 ccicnce113424 | Redacted or Malformed Event | 01:14:52 |
| ccicnce113424 | * I'm using the latest version of nixos-unstable and noticed that Firefox isn't being cached. I checked your Hydra and found that the last successful evaluation for cuda-packages-unstable occurred on April 1; the most recent evaluation processes all ended prematurely. | 01:29:07 |
| ccicnce113424 | * I checked your Hydra and found that the last successful evaluation for cuda-packages-unstable occurred on April 1; the most recent evaluation processes all ended prematurely. | 01:29:34 |
 jaredmontoya | I tried to update to the latest nixos-unstable but thunderbird seems to not be in cache.nixos-cuda.org (and I can't build it because it sems to need more than 64GB RAM to build) did anyone else experience this? | 13:33:23 |
 hexa |
more than 64 GB
| 13:34:23 |
| hexa | that seems unlikely | 13:34:26 |
| hexa | https://hydra.nixos-cuda.org/jobset/nixos-cuda/cuda-packages-unstable#tabs-evaluations | 13:35:18 |
| hexa | the last eval was two weeks ago | 13:35:24 |
 Robbie Buxton | In reply to @hexa:lossy.network
that seems unlikely Idk I’ve oomed on packages with over 1TB of ram | 13:36:51 |
| hexa | wat\ | 13:37:01 |
