!lheuhImcToQZYTQTuI:nixos.org

Nix on macOS

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โ€œThere are still many issues with the Darwin platform but most of it is quite usable.โ€ โ€” http://yves.gnu-darwin.org192 Servers

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3 Apr 2026
@hexa:lossy.networkhexa https://grafana.nixos.org/d/he6lz9g/macos3a-disk-space?orgId=1&from=now-6h&to=now&timezone=utc 22:49:09
@hexa:lossy.networkhexapossibly22:49:21
@hexa:lossy.networkhexathat looks much more healthy already22:49:43
@emilazy:matrix.orgemilythat does seem a bit higher disk usage than expected post-GC for machines where there's presumably nothing in home directories etc.22:49:59
@hexa:lossy.networkhexa
Filesystem        Size    Used   Avail Capacity iused ifree %iused  Mounted on
/dev/disk3s3s1   228Gi    11Gi    97Gi    11%    453k  1.0G    0%   /
devfs            203Ki   203Ki     0Bi   100%     702     0  100%   /dev
/dev/disk3s6     228Gi   1.0Gi    97Gi     2%       1  1.0G    0%   /System/Volumes/VM
/dev/disk3s4     228Gi    14Gi    97Gi    13%    5.4k  1.0G    0%   /System/Volumes/Preboot
/dev/disk3s2     228Gi    59Mi    97Gi     1%      69  1.0G    0%   /System/Volumes/Update
/dev/disk1s2     500Mi   6.0Mi   483Mi     2%       3  4.9M    0%   /System/Volumes/xarts
/dev/disk1s1     500Mi   5.7Mi   483Mi     2%      30  4.9M    0%   /System/Volumes/iSCPreboot
/dev/disk1s3     500Mi   916Ki   483Mi     1%      32  4.9M    0%   /System/Volumes/Hardware
/dev/disk3s1     228Gi    36Gi    97Gi    27%    863k  1.0G    0%   /System/Volumes/Data
map auto_home      0Bi     0Bi     0Bi   100%       0     0     -   /System/Volumes/Data/home
/dev/disk3s7     228Gi    67Gi    97Gi    41%    4.0M  1.0G    0%   /nix
/dev/disk4       512Mi    12Mi   500Mi     3%       4  4.3G    0%   /private/var/run/agenix.d
22:51:15
@hexa:lossy.networkhexathat's intense-heron22:51:17
@hexa:lossy.networkhexain grafana free space sits at 96.6G22:51:35
@hexa:lossy.networkhexathat matches with Avail on /nix and /System/Volumes/Data22:52:00
@hexa:lossy.networkhexaso with 67G in he nix store we could probably free up to 150G now22:52:19
@hexa:lossy.networkhexawhich leaves ~75G for the system/junk22:52:37
@emilazy:matrix.orgemilyso ~45 system + ~67 store = 112 and then there's 47 of ~something~?22:52:54
@emilazy:matrix.orgemilystill seems like a surprising amount of junk22:53:11
@hexa:lossy.networkhexayeah22:53:24
@hexa:lossy.networkhexabut that makes it more plausible to pick the 512GB disks and go for 6 new mac minis22:53:57
@emilazy:matrix.orgemilyyeah, given that it only presumably needs to hold the system and the working set / build dirs for whatever builds it's running, I assume it should be22:54:30
@emilazy:matrix.orgemily* yeah, given that it only presumably needs to hold the system and the working set / build dirs for whatever builds it's running, I assume it should be fine22:54:32
@emilazy:matrix.orgemily maybe some builds have really huge build dirs, but those will also likely be big-parallel and so little contention 22:54:47
@emilazy:matrix.orgemilydid nothing stand out in ncdu?22:54:55
@hexa:lossy.networkhexa
Download
22:55:46
@emilazy:matrix.orgemily /private is /var + /tmp 22:56:18
@emilazy:matrix.orgemily
  • /etc I guess but I hope it's not /etc
22:56:27
@emilazy:matrix.orgemily * + /etc I guess but I hope it's not /etc 22:56:30
@alexfmpe:matrix.orgalexfmpeapparently I'm unable to get this room in particular in the suggestions when trying to #-mention it in another on element web client22:56:49
@alexfmpe:matrix.orgalexfmpeprobably related, what is up with the room name? 22:57:01
@emilazy:matrix.orgemily btw, /macOS Install Data is not load-bearing ๐Ÿ˜… 22:57:14
@alexfmpe:matrix.orgalexfmpee.g. https://app.element.io/#/room/!lheuhImcToQZYTQTuI:nixos.org vs https://app.element.io/#/room/#cross-compiling:nixos.org22:57:17
@hexa:lossy.networkhexa
Download
22:57:20
@emilazy:matrix.orgemilythat's just an update installer that's lying around22:57:21
@emilazy:matrix.orgemilyso there's 3 free gigs already22:57:28
@hexa:lossy.networkhexa
Download
22:57:38

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