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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/#cuda56 Servers

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14 Jan 2026
@yorik.sar:matrix.orgyorik.sarSo they removed support for a whole version+platform in a patch release? That’s not nice.04:45:45
@yorik.sar:matrix.orgyorik.sarI think we’d need 2 versions then - one for aarch64, one for the rest.04:46:34
@hexa:lossy.networkhexa (UTC+1)it might be possible that I can escape the tensorflow curse with ai-edge-litert21:30:09
@hexa:lossy.networkhexa (UTC+1)* it might be possible that I can escape the tensorflow curse with ai-edge-litert, the successor to tflite21:30:15
15 Jan 2026
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Can someone do something to test or verify https://github.com/NixOS/nixpkgs/pull/48023203:07:04
@hexa:lossy.networkhexa (UTC+1)https://github.com/NixOS/nixpkgs/pull/480103 introduces reintroduces libtensorflow-bin at 2.18.1, if anyone cares for that15:15:31
@hexa:lossy.networkhexa (UTC+1)* https://github.com/NixOS/nixpkgs/pull/480103 introduces reintroduces libtensorflow-bin at 2.18.1, if anyone here cares for that15:15:35
@hexa:lossy.networkhexa (UTC+1)

Note: Publishing standalone libtensorflow packages was dropped in TensorFlow 2.19.0, so the binary version used in this package is the latest one.

15:16:07
@hexa:lossy.networkhexa (UTC+1)ah sure, that's why we package an outdated release 😬15:16:18
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Goddamn stubs and transitive symbol resolution17:33:35
* @connorbaker:matrix.orgconnor (burnt/out) (UTC-8) grumbles17:33:39
16 Jan 2026
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)PR to avoid rebuilding Nix itself whenever CUDA support is enabled: https://github.com/NixOS/nixpkgs/pull/48052400:01:13
@hexa:lossy.networkhexa (UTC+1)nix depends on onetbb?00:09:53
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)Yes, IIRC at least through blake302:23:54
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8) hexa (UTC+1): any additional thoughts on merging https://github.com/NixOS/nixpkgs/pull/480524? 18:16:50
@hexa:lossy.networkhexa (UTC+1)none18:30:44
@hexa:lossy.networkhexa (UTC+1)didn't test anything18:30:47
@hexa:lossy.networkhexa (UTC+1)just disables cuda support18:30:55
@hexa:lossy.networkhexa (UTC+1)what could go wrong?18:31:03
@ss:someonex.netSomeoneSerge (back on matrix)Wait, globally?20:00:50
@ss:someonex.netSomeoneSerge (back on matrix)This probably affects MPI and SLURM, and might be one of those libraries you're actually supposed to link dynamically and not how we do it20:26:15
@connorbaker:matrix.orgconnor (burnt/out) (UTC-8)I don't follow; IIRC hwloc is pulled in by those directly and would use it untouched22:48:00
17 Jan 2026
@glepage:matrix.orgGaétan Lepage FYI, the onnxruntime bump was merged! 🎉
https://github.com/NixOS/nixpkgs/pull/450587
09:33:45
@kaya:catnip.eekaya 𖤐Hey. Im working on upstreaming packages for exllama & tabbyapi. I would appreciate if somebody from here could review the PR :) https://github.com/NixOS/nixpkgs/pull/48112119:11:25
18 Jan 2026
@glepage:matrix.orgGaétan Lepage Anyone could give a second opinion on https://github.com/NixOS/nixpkgs/pull/474676 please? 09:48:06
@ss:someonex.netSomeoneSerge (back on matrix)This particular regression could've been avoided with autopatchelf. Maybe switch to that?12:08:40
@glepage:matrix.orgGaétan Lepage Just adding autoPatchelfHook you mean? 22:29:11
@ss:someonex.netSomeoneSerge (back on matrix)And removing --set-rpath23:40:44

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