| 22 Dec 2025 |
 reno | has anyone had issues with python3.withPackages not working with nix-shell. for some reason dropping into nix-shell -p 'python3.withPackages(p: [p.requests ])' then trying import requests from the python3 from the nix-shell fails with a module not found error. same thing works on linux. | 00:47:49 |
| reno | * has anyone had issues with python3.withPackages not working with nix-shell? for some reason dropping into nix-shell -p 'python3.withPackages(p: [p.requests ])' then trying import requests from the python3 from the nix-shell fails with a module not found error. same thing works on linux. | 00:48:23 |
 K900 | I think this is fixed on latest channels? | 00:49:27 |
| K900 | If it's what I think it is | 00:49:46 |
| reno | hmm. still there for me on nixpkgs https://nixos.org/channels/nixpkgs-unstable. I just updated channel to see if it went away. will try again tomorrow. | 00:54:08 |
| reno | works fine on nixpkgs-25.11-darwin so switched. not sure why I was using unstable anyways. thx. | 01:02:34 |
 Randy Eckenrode | YAY. SwiftPM has a way of doing vendored dependencies. | 02:26:23 |
| Randy Eckenrode | * | 02:26:40 |
| Randy Eckenrode | You can mark a package as “edited”. That will cause SwiftPM to use whatever is in Packages/<package-name>. | 02:27:47 |
| Randy Eckenrode | So instead of doing what we were doing, I generate a workspace-state.json that marks all of the dependencies as edited. | 02:28:18 |
| Randy Eckenrode | * So instead of doing what we were doing, I generate a workspace-state.json that marks all of the dependencies as edited; and I symlink the source from the store to Packages/$packageName. | 02:28:57 |
| K900 | Any volunteers to test an mpv update? https://github.com/NixOS/nixpkgs/pull/473235 | 10:10:44 |
 crushing-smite | Is there any foss app launcher that is guaranteed to pick-up darwin/home-manager GUI apps? Don't need nothing fancy, I use sway for NixOS, so I would be happy with just an input field which can filter apps by name. | 13:40:15 |
 kdn | what's some reasonable way to extend arch builder's (or any NixOS VM's) storage with SSD drive on Mac Mini? When I previously created an UTM VM with 500 GB file-backed "disks" they seems to have been corrupted some month in and stopped booting | 13:48:54 |
|  wshtk joined the room. | 14:01:01 |
| wshtk | Hello all. I'm at a loss. Just upgraded to Tahoe the other day... have been running nix-darwin for three or four years on this computer, I rebooted today and suddenly everything was gone, like nix never existed. After hours of troubleshooting, completely reinstalling nix and rebuilding, I'm to the point that it seems that every time I reboot my symlink /run/current-system/ dissapears... rebuild the system or just replace the link, all is fine, reboot /run/current-system gone again. Any ideas what's wiping it? | 14:22:22 |
 Ihar Hrachyshka | Qemu nixpkgs vm hangs on boot sometimes, with traceback in Console that suggests FD_SETSIZE overflow in g_poll. both aarch64 and x86_64 emulated VMs are affected. lsof shows qemu using ~1024+ fds then.
Sometimes the issue happens, sometimes not (so a workaround is rebooting the VM several times until it "settles" on a relatively low number of FDs, ~500-700).
qemu has its own "g_poll" implementation for platforms that support ppoll() that doesn't go through glib loop. AFAIU macos doesn't support it. (?)
is this a known issue? is there anything we could do about it?
| 15:09:23 |
| wshtk | solved: https://github.com/nix-darwin/nix-darwin/issues/1148 | 15:26:20 |
| Randy Eckenrode | As far as I call tell from the man pages, which admittedly kind of suck, all ppoll does is also let you wait on signals. As far as I can tell, g_poll does not let you do that. What is ppoll also doing in this case that one couldn’t do manually with poll? | 15:31:30 |
| Ihar Hrachyshka | qemu g_poll implementation: https://github.com/qemu/qemu/blob/bb7fc1543fa45bebe7eded8115f25441a9fee76e/util/qemu-timer.c#L323-L347 | 15:33:37 |
| Ihar Hrachyshka | in glib, there's this in meson
if host_system in ['windows', 'darwin']
# Poll doesn't work on devices on Windows, and macOS's poll() implementation is known to be broken
glib_conf.set('BROKEN_POLL', true)
endif
| 15:34:28 |
| Randy Eckenrode | I wonder what they mean by “broken”. | 15:35:04 |
| Randy Eckenrode | Sometimes “broken” means “conforms to POSIX but doesn’t do what GNU does”. | 15:35:48 |
| Ihar Hrachyshka | /* The poll() emulation on OS/X doesn't handle fds=NULL, nfds=0,
* so we prefer our own poll emulation.
| 15:35:50 |
| Ihar Hrachyshka | the MR that mentions tap networking broken? https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2571 | 15:39:46 |
| Ihar Hrachyshka | there's a "check" they use to detect a "broken" poll here: https://gitlab.gnome.org/GNOME/glib/-/commit/caecf2dda082e9c46c4157cdc10763deb8dcfc27
but afaiu it is no longer needed and just forced on darwin. wonder if the check would pass now... | 15:40:56 |
| Ihar Hrachyshka | * there's a "check" they use to detect a "broken" poll here: https://gitlab.gnome.org/GNOME/glib/-/commit/caecf2dda082e9c46c4157cdc10763deb8dcfc27
but afaiu it is no longer used and just forced on darwin. wonder if the check would pass now... | 15:41:04 |
| Randy Eckenrode | According to POSIX, fds is an array. My understanding is that NULL is not a valid value for an array in C. | 15:41:55 |
| Ihar Hrachyshka | the check compiled with xcode clang returns 1 | 15:42:22 |
| Randy Eckenrode | https://pubs.opengroup.org/onlinepubs/9799919799/functions/poll.html | 15:42:38 |
