| 15 Jul 2025 |
 connor (he/him) | Not sure about segfaults (I had them regularly if my RAM was clocked to high or voltage was unstable etc), but make sure you’re enabling cudaSupport and specifying your GPU’s compute capability for faster builds. | 21:22:40 |
 farmerd | That's where the hardware thing comes in. I was seeing issues about hash mismatches and then I tried to verify and repair my nix-store and it's got a bunch of corrupted files (it couldn't repair it). | 21:23:11 |
| farmerd | Yeah I think I've got a dimm going bad on me. I've been having random crashes throughout the system and I hadn't put it together until I spent a bunch of time on this yesterday and realized how many random things were corrupted. | 21:24:02 |
| farmerd | I've got a new pair of dimms coming tomorrow so I'll swap them in (and probably reinstall nix since my nix-store is apprently corrupted beyond repair :-/ ) and try again. | 21:24:59 |
| farmerd | Oh, although may I ask how to specify the compute capability? I did notice it was passing a bunch of them to NVCC but I didn't see how to specify it. | 21:25:45 |
 mcwitt | regardless of hardware issues, if you're just starting out I don't think you should need to build anything from source.
The reason you're seeing this is the flake template you linked is pinned to an old revision of nixpkgs-unstable, and the build artifacts have likely expired from cache.nixos.org. I'll often update the nixpkgs pin as a first step when starting with a new template for this reason | 23:57:02 |
| 16 Jul 2025 |
| farmerd | Ok, that makes sense. | 01:09:44 |
