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Nix Hackers

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3 Dec 2025
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)Dumb question. Did you funnel this to the newly built nix's local store or a separate daemon?17:48:15
@shine:proqqul.netTaeer Bar-YamOH is that code running on the daemon?? of course!17:48:37
@shine:proqqul.netTaeer Bar-Yami knew i was going to kick myself when i figured it out17:48:42
@shine:proqqul.netTaeer Bar-Yamor when someone told me, rather17:48:46
@shine:proqqul.netTaeer Bar-Yami've been spending so much time in the parsing code i forgot about the daemon17:49:07
@shine:proqqul.netTaeer Bar-Yamhow do i force it to use local nix for the daemon again?17:49:31
@xokdvium:matrix.orgSergei Zimmerman (xokdvium) Depends. You can just use a chroot store with --store /path/to/chroot/store 17:50:39
@shine:proqqul.netTaeer Bar-Yamthank you!!17:51:25
@roberthensing:matrix.orgroberthSure. This one is a small change, and can be stabilized to become a normal requiredSystemFeatures feature. I would suggest to do that after 1 year. SBOM folks will use this stuff, so unlike say the TOML timestamps we'll get some testing in that time.22:05:22
@roberthensing:matrix.orgroberth As for requiredSystemFeatures becoming a Haskell-esque preamble, that's mitigated by having Nixpkgs do it, and you can bundle a bunch of them up into a single flag like Haskell2010 did. We're nowhere near that though. ca-derivations will remain a choice anyway (input addressing is useful), so structured attrs is the only other such flag so far. 22:08:02
@roberthensing:matrix.orgroberthstructuredAttrs and the discard references thing should have been requiredSystemFeatures, but that's not useful anymore at this point22:10:01
4 Dec 2025
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5 Dec 2025
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6 Dec 2025
@joerg:thalheim.ioMic92 Sergei Zimmerman (xokdvium): https://github.com/NixOS/nix/pull/14696#issuecomment-3619665616 not sure yet if it's related to this change, but I just got an error that it couldn't find a "uid" in my dotfiles for hercules-ci-effects, unfortunally I didn't copy the error and now it no longer reproduces. 06:57:26
@joerg:thalheim.ioMic92Let me also make sure that I rebase on latest master06:58:00
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)
In reply to @joerg:thalheim.io
Sergei Zimmerman (xokdvium): https://github.com/NixOS/nix/pull/14696#issuecomment-3619665616 not sure yet if it's related to this change, but I just got an error that it couldn't find a "uid" in my dotfiles for hercules-ci-effects, unfortunally I didn't copy the error and now it no longer reproduces.
That only affects the tarball cache though.
06:58:16
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)And your dotfiles is just a regular repo and doesn’t get opened with packfilesOnly = true06:59:09
@joerg:thalheim.ioMic92 Sergei Zimmerman (xokdvium): that was reported for the hercules-ci-effects repo specifically, I had this patch applied manually on top: https://github.com/Mic92/nix-1/commit/2c0f976026c0c0acb21e5bae4b205eacd94a8a6c 07:00:00
@joerg:thalheim.ioMic92
hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects";
07:00:20
@joerg:thalheim.ioMic92and yes it's the tarball cache in this case07:00:31
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)Weird, I’m dogfooding that for some time and didn’t see any issues. Maybe the tarball cache gave out for unrelated reasons?07:03:26
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)Did you happen to be running a somewhat recent-ish master with that?07:04:12
@joerg:thalheim.ioMic92I now did reset my .nix/cache07:04:14
@joerg:thalheim.ioMic92Let's see.07:04:17
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)There was an issue with eelcos patch that started sharing the cache between threads07:04:33
@joerg:thalheim.ioMic92I am also testing this on other machines that will receive more load. This was on my macos machines.07:04:38
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)That was reverted07:04:38
@joerg:thalheim.ioMic92Okay. I now rebased. I wasn't sure if this was included or not07:04:55

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