| 16 Nov 2025 |
 dramforever | namespace.so should be pretty good | 17:53:37 |
 Corngood | Setting cygwin aside. What are we looking at if other platforms (e.g. msvc) advance? | 17:53:40 |
| dramforever | and iirc even the free tier of cachix has quite a bit of space | 17:54:04 |
 hexa | I have no idea what msvc is | 17:54:07 |
| Corngood | microsoft's proprietary compiler. I guess I'm wondering about any builds that need to run on windows | 17:54:37 |
| hexa | run an rfc to extend the platform tiers and find out | 17:54:54 |
| dramforever | also for reference, the loongarch teams runs "our" own hydra on "our" nixpkgs fork, but at least that's still just linux | 17:55:10 |
| hexa | but effectively windows machines maintained by the infra team | 17:55:52 |
 7c6f434c | To add Tier-4 support RFC is not needed, to add Tier-3 RFC is kind of not enough | 17:56:07 |
| hexa | and the status quo is that we don't even have people to deal with the darwin machines as would be required | 17:56:12 |
| Corngood | I was thinking of running my own hydra/builder, but I wanted to check in to make sure there's no existing plans for windows builds. It sounds like there isn't. | 17:56:43 |
| dramforever | does nix builds even work on windows yet | 17:57:13 |
| Corngood | we can cross build a system image tarball (including nix) from linux, and then boot it and use it to build itself natively on cygwin. I'm not sure about mingw/msvc. I don't think they are as far along | 17:58:32 |
| hexa | Janne: are you offering? 🙂 | 17:58:45 |
| dramforever | oh, yeah i was thinking more about msvc | 17:58:56 |
| dramforever | that one probably doesn't work | 17:59:02 |
| dramforever | cygwin probably does but i'm going to worry about the sandboxing | 17:59:32 |
 Janne | Macos is not my main area of expertise. But tbh, windows would probably be way easier since there is software like trmm that makes fleet management easy while not costing a billion euros and locking you into their cloud | 17:59:42 |
| Janne | I could take over Linux if you take over all of the macos infra though 🤔 | 18:00:19 |
| Corngood | I've been wondering about sandboxing in general on windows. I'm not sure if anyone has made any progress on that. | 18:00:21 |
| Corngood | At least you can have separate cygwin installs that have their own process namespaces and stuff. Certainly nothing secure though. | 18:01:01 |
| Janne | I bet @simon.hauser:helsinki-systems.de would love porting the PSI thingies to the windows equivalent | 18:02:42 |
 eveeifyeve | Do you want me to look into that? | 19:01:11 |
| 17 Nov 2025 |
 John Ericson | I am catching up on this conversation now Corngood | 17:43:39 |
| John Ericson | (and eveeifyeve ) | 17:43:51 |
| John Ericson | K900: you can weigh in of course, but we've had a lot of conversations with @emilylazy and Alyssa Ross about how Cygwin is the last disruptive way to try to get Windows support going | 17:45:42 |
| John Ericson | * K900: you can weigh in of course, but we've had a lot of conversations with @emilylazy and Alyssa Ross about how Cygwin is the last disruptive way to try to get Windows support going in Nixpkgs | 17:45:49 |
| John Ericson | (least disruptive to Nixpkgs) | 17:45:52 |
| John Ericson | I would like for MinGW and LLVM in MSVC-ABI-compat mode to obviate the need for Cygwin longer term for many tasks, but I don't want to block Windows support on "first we have to rewrite stdenv and all the bash" | 17:46:48 |
| John Ericson | Indeed, after first I was excited contemplating switching from bash, etc., but Emily and Alyssa convinced me that was irresponsible, and we have to take small steps | 17:47:27 |
